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Governmental & Military >> NASA Abbreviations

Look through 5000 acronyms and abbreviations related to NASA:

• BCWS — budgeted cost for work scheduled
• I/W — in work
• US — United States of America
• LAN — Local Area Network
• LSPPS — Logistics Support Plan for Preoperational Support
• OPS — Operations
• DD/HH:MM:SS — Day/Hour:Minute:Second
• E&L — engineering and lab
• ASAP — As Soon As Possible (pronounced AY-sap)
• ANSI — American National Standards Institute, Inc.
• USA — United States of America
• AU — Accounting Unit
• H2O2 — Hydrogen Peroxide
• ROM — Read-Only Memory
• CMCS — Centralized Maintenance Computer System
• IP — Internet Protocol
• DELOG — design engineering logistics
• FSCM — Federal Supply Code for Manufacturers (replaced by CAGE code)
• FLSA — Fair Labor Standards Act
• POC — Point Of Contact
• I&ES — information and electronics system
• MOU — Memorandum of Understanding (an MOU between Food & Drug Administratin and a regulatory agency in another country allows mutual recognition of inspections)
• LIFO — Last In, First Out
• A — Ampere
• FTE — Full Time Equivalent
• CO2 — Carbon Dioxide
• CCTV — Closed-circuit television
• K-LOAD — constant load
• A&COTA — Assembly and Checkout Technical Analysis
• I/OC — input/output controller
• ISO — International Organization for Standardization
• BTU — British Thermal Unit
• ISP — Internet Service Provider
• A&TA — Assembly and Test Area
• DEC — Digital Equipment Corporation
• BRDF — Bidirectional Reflectance Distribution Function
• CY — Calendar Year
• TBD — To Be Determined
• CBC — Complete Blood Count
• C/SSR — Cost/Schedule Status Report
• CAD-OPS — computer-aided design costing for operations
• B-L — bill of lading
• LED — Light-Emitting Diode
• CEO — Chief Executive Officer
• ASME — American Society of Mechanical Engineers
• E/OCM — electromagnetic/optical countermeasure
• EAP — Employee Assistance Program
• C&CS — command and control subsystem
• SME — Subject Matter Expert
• I/OU — input/output unit

• JIT — Just in time
• QA — Center for Quality Assurance in International Education
• AM — Amplitude Modulation
• JAEL — JSC Avionics Engineering Laboratory
• TIM — Technical Interchange Meeting
• DR — Discrepancy Report
• FY — Fiscal Year
• AA — Affirmative Action
• IBM — International Business Machines Corporation
• ADP — Automated Data Processing
• J-BOX — Junction Box
• A&RC — Application and Resource Control
• WBS — Work Breakdown Structure
• CCB — Change Control Board
• MA&T — Manufacturing Assembly And Test
• CDR — Critical Design Review
• H/B — hyperbaric
• ISAR — Inverse Synthetic-Aperture Radar
• K-DODM — KSC DOD Plan/Requirement
• ARPA — Advanced Research Projects Agency (made early internet)
• EST — Eastern Standard Time
• DRAM — Dynamic Random Access Memory (dee-ram) (computing)
• K-DPPS — KSC DOD Payloads Project Specification
• DARPA — Defense Advanced Research Projects Agency (US)
• A&SS — alignment and stabilization subsystem
• CD — Compact Disc
• EOF — End Of File
• AGC — Automatic Gain Control
• B/V — Bleed Valve
• DOT — Department of Transport
• CAE — Computer-Aided Engineering
• C-BARS — classified baseline accounting and reporting system
• LAMOD — laser optical motion detector
• AIAA — American Institute of Aeronautics and Astronautics, Inc.
• K-APM — KSC Automated Payloads Plan/Requirement
• C/SR — cost/schedule report
• C&TSS — Communication and Tracking Subsystem
• F&IE — Facilities And Industrial Engineering
• K-MMSEN — KSC MMSE Notice
• ESA — European Space Agency
• I/U — instrumentation unit
• AGL — Above Ground Level
• K-DPM — KSC DOD Payloads Plan/Requirement
• BBS — Bulletin Board System
• BP — Blood Pressure
• G&N — Guidance and Navigation
• K-MMSEM — KSC MMSE Plan/Requirement
• CFR — Code of Federal Regulations
• NSF — National Sanitation Foundation
• M&RF — Maintenance And Refurbishing Facility

• K-CITEM — KSC CITE Plan/Requirement
• H/SIR — hardware and software integration review
• CBO — Congressional Budget Office
• DOE — United States Department of Energy (government)
• K-DPN — KSC DOD Payloads Notice
• CLIN — Contract Line Item Number
• SSI — Server Side Include
• K-MMSEPS — KSC MMSE Project Specification
• K-APPS — KSC Automated Payloads Project Specification
• AADSF — Advanced Automated Directional Solidification Furnace
• K-APN — KSC Automated Payloads Notice
• K-IUSM — KSC IUS Plan/Requirement
• HZ — cycles per second (hertz)
• I/OMI — integration, operations, and maintenance instruction
• DA&E — Data Analysis and Evaluation
• DOS — Disk Operating System
• DES — Data Encryption Standard
• PCB — printed circuit board
• C/S/P — cost/schedule/performance
• K-SLPS — KSC Spacelab Project Specification
• K-IUSPS — KSC IUS Project Specification
• C&DSS — communication and data subsystem
• C/SCS — Cost/Schedule Control System
• CBT — Computer Based Training
• VHF — Very High Frequency
• C-DEL — complete delivery
• C-RFE — C-band RF electronics
• ATA — Area Transportation Authority
• ATC — Air traffic control
• K-SSS — KSC Shuttle Project Station Set Specification
• CCB — Configuration Control Board
• DA&D — Data Acquisition and Distribution
• MA&P — Maintenance Analysis And Planning
• LLL — Limited-Life List
• ASA — American Standards Association
• ITU — International Telecommunication Union
• MIN — Minute
• K-SLM — KSC Spacelab Plan/Requirement
• AADEW — attack assessment for directed-energy weapon
• HMO — Health Maintenance Organization
• CONUS — Continental United States (48 Contiguous States and DC)
• E/B — equipment bay
• K-SPN — KSC Shuttle Project Notice
• F&P — fluids and propulsion
• K-SPS — KSC Shuttle Project Specification
• K-SLN — KSC Spacelab Notice
• K-SM — KSC Shuttle Management Document
• G/AIT — ground/airborne IGS terminal
• STD — Standard
• MHZ — Megahertz (Megacycles Per Second)

• C/DPM — cost/design performance management
• D&PA — design and product assurance
• FAR — Federal Acquisition Regulation
• G/N — general notes
• I/FU — interface unit
• ACM — Association for Computing Machinery
• L-RFE — L-band RF electronics
• LANDSAT-7 — Land Remote Sensing Satellite
• I/OB — input/output bus
• FA< — first approach and landing test
• I&C/O — installation and checkout
• GNP — gross national product (economics)
• L&LS — launch and landing site
• HVAC — Heating, Ventilation, and Air Conditioning
• J-T — Joule-Thompson
• G&CI — guidance and control integration
• M/PHE — material or personnel handling equipment
• IR — Infrared
• I/OT — input/output test
• G&CEP — guidance and control equipment performance
• DAMMPS — damping and metal matrix for precision structure
• CDRL — Contract Data Requirements List
• E&DSG — Electro-Optical and Data Systems Group
• AACPSM — actual average cost per successful mission
• GA&CS — Ground Acquisition and Command Station
• SDD — Software Design Document
• LNG — Liquefied Natural Gas
• AHRS — Attitude Heading Reference System
• CDMA — Code Division Multiple Access (voice/data transmission)
• CAALIS — computer-aided assembly-line inspection system
• D* — normalized detectivity
• MADCS — modular attitude determination and control system
• J-FACT — joint flight acceptance composite test
• M-M-L-S — Model-Modes-Loads-Stresses
• SAR — Search And Rescue
• ICAO — International Civil Aviation Organization
• HQ — Headquarters (HDQ Preferred)
• J-CLOT — joint closed-loop operations test
• I/OP — inboard/outboard profile
• MA&SE — mission analysis and system engineering
• CA — California
• ACL — Access Control List
• AK — Alaska
• MCRDF — mission configuration requirements data file
• CRC — Contrôle de Redondance Cyclique (French: Cyclic Redundancy Check)
• MB — Megabyte
• ADC — Air Data Computer
• AI — Artificial Intellegence
• I/O — Input/Output
• BOM — Bill of Material

• BOD — Board of Directors (Budget)
• KBS — Knowledge-Based System
• SIC — Standard Industrial Classification (Code)
• M/LR — Maintenance Loop Recorder
• G-II — Gulfstream II
• ACRS — Accelerated Cost Recovery System (finance)
• EDM — Engineering Development Model
• ADPE — Automatic Data Processing Equipment
• LANI5 — lanthanum pentanickel
• APU — Auxiliary Power Unit
• GSA — U.S. General Services Administration
• MIN — Minimum
• AF — Air Force
• PCB — Polychlorinated Biphenyls
• M&O — Maintenance and Operations
• BAFO — Best and Final Offer
• AVO — avoid verbal orders
• FDDI — Fiber Distributed Data Interface
• FICA — Federal Insurance Contribution Act
• DBA — Data Base Administrator
• DTE — Data Terminal Equipment
• CASB — Cost Accounting Standards Board
• PD — Position Description
• ECN — Engineering Change Notice
• MORT — management oversight and risk tree
• CASE — computer-automated software engineering
• ERISA — Employee Retirement Income Security Act
• GIF — Graphic Interchange Format
• DANASAT — direct-ascent nuclear ASAT
• GAO — Government Accountability Office [formerly the General Accounting Office]
• DARPA/LL — DARPA Lincoln Laboratory
• GB — Gigabyte
• AICE — American Institute of Chemical Engineers
• AFCS — Automatic Flight Control System
• CAD — Computer-Aided Design
• CH4 — Methane, Natural Gas
• ASCE — l'American Society of Civil Engineers
• A&PS — Administration and Program Support
• DSP — Digital Signal Processor
• ELF — Extremely Low Frequency
• EM — Electromagnetic
• AFC — Automatic Frequency Control
• AS/RS — automated storage and retrieval system
• ASL — Above Sea Level
• BW — Bandwidth
• BMB — Bench Maintenance Building
• ASM — American Society for Metals International
• LOS — Line Of Sight
• ACWP — actual cost for work performed
• AOP — Annual Operating Plan

• PM — Program Manager
• BP — Boiling Point
• HR — Hour
• CM — Configuration Management
• MIL — Military
• FM — frequency modulation
• JOA — joint operating agreement
• AT&T — American Telephone & Telegraph
• GPO — Government Printing Office
• DFD — Data Flow Diagram
• TV — Television
• MBO — Management by Objective
• MD — Maryland
• C — Celsius
• ACO — Administrative Contracting Officer  
• AWG — American Wire Gauge
• ABRES — antiballistic reentry system
• CMD — Command
• LANL — Los Alamos National Laboratory
• CAS — Configuration Accounting System
• DMSP — Defense Meteorological Satellite Program (U.S.)
• AFSCN — Air Force Satellite Control Network
• C — Center
• EPROM — Erasable Programmable Read-Only Memory
• A — Analog
• VOL — Volume
• DUNS — Data Universal Numbering System
• IAW — In Accordance With
• PLC — Programmable Logic Control
• BOD — Beneficial Occupancy Date
• CAR — Corrective Action Request
• CAI — Computer-Aided Instruction
• FORTRAN — FORmula TRANslation (a computer language)
• BAU — Business As Usual
• A/S — Airspeed
• COI — Conflict Of Interest
• AEM — Assembly and External Maintenance
• EQUIP — Equipment
• AST — Arabic Standard Time
• KB — Keyboard
• AIIM — Association for Information and Image Management International
• FDMA — Frequency Division Multiple Access
• ESOW — Engineering Statement of Work
• COBOL — Common Business-Oriented Language
• ALC — Air Logistics Center
• EW — Electronic Warfare
• PIN — Personal Identification Number
• UPS — Uninterruptible Power Supply
• AEC — Atomic Energy Commission (superseded by ERDA)
• AFB — Air Force Base (USAF)

• IOC — Initial Operational Capability
• E-MAIL — Electronic Mail
• EMF — Electromotive Force
• CICA — Competition in Contracting Act (1984)
• CMA — Configuration Management Accounting
• IDG — Integrated Drive Generator
• SCR — Selective Catalytic Reduction
• AU — Astronomical Unit
• CAP — Cost Account Package (NASA)
• CU — Control Unit
• AFGL — Air Force Geophysics Laboratory
• ATS — applications technology satellite
• ADC — Aerospace Defense Command
• ADS — Astrophysics Data System
• Y2K — Year 2000
• CARS — Configuration Accounting and Reporting System
• FRAGNET — Fragmented Network
• CHEM — Chemistry
• AP&P — advanced plans and programs
• ISS — International Space Station
• ADC — Analog-Digital Converter
• DOS — United States Department of State
• AISI — American Iron and Steel Institute
• BME — Bench Maintenance Equipment
• COCOMO — COnstructive COst MOdel
• ARC — Ames Research Center (NASA)
• LSAS — Logistics Support Analysis Strategy
• GE — General Electric American Communications Inc.
• MOPA — Master Oscillator Power Amplifier
• ELINT — Electronic Intelligence Satellite
• AGMA — American Gear Manufacturer's Association
• CESA — Canadian Engineering Standards Association
• BM — Branch Manager
• DBM — Data Base Management
• CCM — counter-countermeasure
• AFLC — Air Force Logistics Command's
• AES — Auger Electron Spectroscopy
• CNC — Computer Numerical Control
• DCAA — (U.S.) Defense Contract Audit Agency
• NPD — NASA Procedural Directive
• LOC — Lines Of Code
• JAXA — Japan Aerospace Exploration Agency
• ALS — advanced logistics system
• CBARS — classified baseline accounting and reporting system
• STS — Space Transportation System
• IDL — Indentured Drawing List
• ALC — Automatic Level Control
• NIS — Network Information System
• AIS — Airborne Imaging Spectrometer
• ALV — Advanced Logistics Vehicle

• CFD — computational fluid dynamics
• DOC — United States Department of Commerce
• ALMS — Automated Logistics Management System
• ACR — Actual Cost Report
• BMB — Base Maintenance Building
• DITMO — development, integration, test, and mission operations
• APT — automatic programmed tool
• MTBCF — Mean Time Between Critical Failures
• BWG — Birmingham Wire Gauge
• AIA — Aircraft Industries Association
• JPL — Jet Propulsion Laboratory (California Institute of Technology) (NASA)
• LOL — Limit of Liability
• CVAS — Configuration Verification Accounting System
• APMSM — assembly phase maintenance simulation model
• GYM — General José María Yáñez International Airport, Guaymas, Mexico
• AMRO — AMR operations
• CALS — Computer-Aided Acquisition and Logistics Support (CAALS)
• LWOP — Leave Without Pay
• GHZ — Gigahertz
• CCSDS — Consultative/Consultative Committee for Space Data Systems
• GAO — Government Accounting Office
• DR/MR — discrepancy report/material review
• ASAP — Aerospace Safety Advisory Panel
• ISAS — Institute of Space and Astronautical Sciences (Japan)
• CONOPS — Concept of Operations
• CMVAS — configuration management verification accounting system
• A/D — Analog-to-Digital
• SDB — Small Disadvantaged Business
• ABMA — Army Ballistic Missile Agency
• ALGOL — Algorithmic Language
• HW — Hardware
• ASK — amplitude shift keying
• ACRIM — Active Cavity Radiometer Irradiance Monitor (EOS)
• A&R — Assembly and Recycle
• ATP — Authority To Proceed
• LCC — Life Cycle Cost
• TOR — terms of reference (ICAO/FAA)
• BAC — Boeing Aerospace Company
• AAE — American Association of Engineers
• A&R — Automation and Robotics
• IF — Intermediate Frequency
• CN — Change Notice
• CIL — critical items list
• GERT — graphical evaluation and review technique
• A&CO — activation and checkout
• MECAS — mission equipment configuration accounting system
• AFWAL — Air Force Wright Aeronautical Laboratory
• AKM — Apogee Kick Motor
• AFSAT — Air Force Satellite
• DNS — Domain Name Server

• IRS — Interface Requirements Specification
• AMU — Astronaut Maneuvering Unit
• MBPS — Megabytes Per Second
• AFM — Air Force Manual
• MBM — Magnetic Bubble Memory
• ERB — Engineering Review Board
• DHS — Department of Human Services
• AIEE — American Institute of Electrical Engineers
• BFS — Backup Flight Software
• EHF — Extremely High Frequency
• JSC — Johnson Space Center (Houston, TX)
• A/N — Alphanumeric
• A/C — Aircraft
• VPP — Voluntary Protection Program
• BP — bid and proposal
• J — Joule
• AOCS — Attitude and Orbit Control System
• AFSCF — Air Force Satellite Control Facility
• FRJD — Forward Reaction Jet Driver
• HWCI — Hardware Configuration Item
• IBEW — International Brotherhood of Electrical Workers
• AFS — Air Force Station
• BHP — Brake Horse Power
• LRR — Launch Readiness Review
• AR — As Required
• ATS — Advanced Technology Satellite
• AP — Access Panel
• ASQC — American Society for Quality Control's
• BIT — Built-In Test
• COBE — Cosmic Background Explorer Satellite (NASA)
• FMCS — Federal Mediation and Conciliation Service
• CDMS — Command and Data Management System
• ERM — Executive Review Meeting
• STTR — Small Business Technology Transfer
• AGE — Aerospace Ground Equipment
• ATR — Air Transport Rack
• LMT — Logistics Management Transfer
• MTBD — Mean Time Between Demand
• JFAS — Jet Fuel Accounting System
• LRIP — Low-Rate Initial Production
• RFS — Request For Service
• BP — Blueprint
• AFSC — United States Air Force specialty code
• LLNL — The Department of Energy's Lawrence Livermore National Laboratory in Livermore, California
• FAX — Facsimile
• ADAMS — Automated Dynamic Analysis of Mechanical Systems
• M&C — Maintenance And Checkout
• VTC — Video Teleconference
• OSO — Orbiting Solar Observatory
• KE — Kinetic Energy

• ARA — Attitude Reference Assembly
• AMR — Atlantic Missile Range
• ADF — Automatic Direction Finder
• MBAR — Marshall Baseline Accounting and Reporting
• ACPM — Attitude Control Propulsion Motor
• SRS — Software Requirements Specifications
• ATF — Advanced Tactical Fighter
• C3 — Command, Control, and Communications
• APL — Average Picture Level
• AWS — American Welding Society's
• AL — Approach and Landing
• EMT — Electrical Metallic Tubing
• A&L — Approach and Landing
• MOE — Measure Of Effectiveness
• GSFC — Goddard Space Flight Center (Greenbelt, MD)
• APD — Avalanche Photo Diode
• CMTS — Computerized Maintenance Test System
• ATP — Acceptance Test Procedure
• EWO — Engineering Work Order
• BOS — Backup Operating System
• A&P — Attitude and Pointing
• ADC — Air Defense Command
• EDR — Engineering Design Review
• DBCR — Data Base Change Request
• LOGCENT — Logistics Control Center
• CCN — Contract Change Notice
• AAP — Affirmative Action Program
• AFOTEC — Air Force Operational Test and Evaluation Center's
• ACAP — Advanced Computer Airframe Program
• EGA — Evolved Gas Analysis
• AOS — Acquisition Of Signal
• LSACN — logistics support analysis control number
• EMRL — Equipment Maintenance Requirements List
• BITE — Built-In Test Equipment
• ADL — Avionics Development Laboratory
• CCR — Contract Change Record
• ELT — Emergency Locator Transmitter
• MGI — Management Group Identifier
• SAR — synthetic aperture radar (satellite)
• MACS — Management and Control System
• ALS — Automatic Landing System
• FUI — Federal Unemployment Insurance
• FDK — Flight Display Keyboard
• AFALD — Air Force Acquisition Logistics Division
• EDMS — Electronic Data Management System
• FCAP — Flight Control Applications Program
• AFBMA — Antifriction Bearing Manufacturing Association
• ERTS — Earth Resources Technology Satellite (now Landsat)
• DMCF — deservicing, maintenance, and checkout facility
• ESMC — Eastern Space And Missile Center (formerly AFETR)

• MRE — Material Review Engineering
• MINW — Master Interface Network
• CSTC — Consolidated Space Test Center
• FLT — Flight
• CCAFS — Cape Canaveral Air Force Station, an air force base in Florida where NASA launches satellites from.
• APL — Applied Physics Laboratory (at Johns Hopkins)
• ASIC — application-specific integration circuit
• BIU — Bus Interface Unit
• ELM — Experimental Logistics Module
• ACS — Attitude Control System
• FORD — Flight Operations Requirement Document
• DMF — Depot Maintenance Facility
• AUC — Average Unit Cost
• ACDA — Arms Control and Disarmament Agency's
• BM — Bench Maintenance
• ID — IDentifier
• BOS — bright-object sensor
• EOS — Earth Observation Satellite
• FAPE — Florida Association of Professional Employees
• DDN — U.S. Defense Data Network
• DILSA — distributed integrated logistics support analysis
• ERBS — Earth Radiation Budget Satellite
• DMPI — Desired Mean Point of Impact
• BMTS — Bench Maintenance Test Set
• AFSTC — Air Force Space Technology Center
• LOIS — Logistics Information Simulator
• USN — United States Navy
• ACMS — Automated Configuration Management System
• COIL — Chemical Oxygen-Iodine Laser
• FIFO — first in/first out
• CS — Customer Service
• ECCM — electronic counter-countermeasures (electromagnetic spectrum)
• ECC — Emergency Control Center
• FR — Frame Relay
• EIRP — Effective Isotropic Radiated Power
• LCV — Logistics Cargo Vehicle
• CEQ — Council on Environmental Quality (U.S.)
• M&M — Materials And Maintenance
• MIRS — management information and reporting system
• AUTOVON — Automatic Voice Network
• CLMC — Central Logistics Management Center
• LPE — Liquid Phase Epitaxy
• AOA — Angle Of Attack
• MCW — Modulated Continuous Wave
• EPDM — Ethylene Propylene Diene Monomere
• AOC — Annual Operating Cost
• M&F — Manufacturing and Facilities
• FCV — Flow Control Valve
• AABNCP — Advanced Airborne National Command Post
• CDI — Course Deviation Indicator

• MSB — Most Significant Bit
• IMS — Information Management System (LTPP)
• I/F — Interface
• AXAF — Advanced X-Ray Astrophysics Facility
• IGOR — Intercept Ground Optical Recorder
• LDRP — Logistics Depot Repair Procedure
• LARC — Langley Research Center (NASA)
• STP — Space Test Program
• PIO — Public Information Office
• CCU — Central Control Unit
• QPSK — aeronautical quadrature phase shift keying
• AISC — American Institute of Steel Construction, Inc.
• ARDC — Air Research and Development Command
• GFE — Government-Furnished Equipment
• APL — applications program library
• ACP — Airborne Command Post
• CR — Change Request
• RID — Review Item Discrepancy
• JOD — Joint Occupancy Date
• MB — Megabit
• A/A — Air-to-Air
• DID — data item description
• BOA — Broad Ocean Area
• ACE — Advanced Composition Explorer
• FL — Florida
• EAC — Estimate At Completion
• AB — Avionics Bay
• ABM — Apogee Boost Motor
• AIDS — Airborne Integrated Data System
• AFO — Announced Flight Opportunity
• HW/SW — Hardware/Software
• LEA/MP — logistics engineering analysis and maintenance planning
• AMST — Advanced Medium STOL Transport
• MSFC — Marshall Space Flight Center (Huntsville AL)
• EIA — Electrical Industries Association
• HCL — Hydrogen Chloride
• EIM — Engineering Information Management
• ASD — Aeronautical Systems Division
• LCC — Launch Control Center (KSC)
• AA — Accelerated Assembly
• ABE — air-breathing engine
• MIO — Management Integration Office
• CB — Circuit Breaker
• CBR — California Bearing Ratio
• AFSC — Air Force Systems Command
• MEBA — Marine Engineers' Beneficial Association
• AA — Associate Administrator
• AFC — Automatic Flight Control
• EUV — Extreme Ultraviolet Vertical
• M&P — Materials and Processes

• ACU — Avionics Cooling Unit
• APC — armored personnel carrier
• LNA — Low-Noise Amplifier
• GMLCC — Ground Mobile Launch Control Center
• ABE — air-based electronics
• CAP — Computer Application Program
• MCIS — Material Control and Information System
• FRB — Failure Review Board
• APLM — Applications Program Library Maintenance
• LVIS — Logistics Verification Information System
• AFT — Atmospheric Flight Test
• MPB — Maintenance Parts Breakdown
• MS-DOS — Microsoft Disk Operating System
• CCN — Contract Change Notification
• ACPO — Associate Contractor Project Office
• GATT — gate-assisted turnoff thyristor
• MSAD — Materials Summary Acceptance Document
• KSC — John F. Kennedy Space Center
• ACPM — Associate Contractor Program Manager
• SMDS — Switched Multimegabit Data Service (ATM)
• BFSS — Backup Flight Software System
• DIA — Defense Intelligence Agency (USA)
• BASS — Backup Avionics System Software
• LR/LD — Line Receiver/Line Driver
• LADS — Logistic Automated Data System
• ECCB — Engineering Change Control Board
• ACE — Attitude Control Electronics
• ABES — air-breathing engine system
• AUTODIN — Automatic Digital Network
• ISMS — Interactive Supply Management System
• ID&D — inspection damage and discrepancy
• HUD — Head-Up Display
• ATA — Advanced Tactical Aircraft
• PMP — Program Management Plan
• LISP — List Processing Language
• DAZE — different-alpha zero-strain E
• ACI — Allocated Configuration Identification
• A/P — Airport
• MAWG — Maintenance Analyzer Working Group
• ACIP — Aerodynamic Coefficient Instrumentation Package
• ATC — Air Training Command
• ARS — American Rocket Society
• AIL — Avionics Integration Laboratories
• MMF — Magnetomotive Force
• ARRA — American Recovery and Reinvestment Act
• SMS — Shuttle Mission Simulator
• LLC — Logical Link Control
• EADI — Electronic Attitude Director Indicator
• CFP — Conceptual Flight Profile
• BDS-2 — booster phase detection system

• NAC — National Agency Check
• INS — Inertial Navigation System
• ARS — Attitude Reference System
• MFA — Manned Flight Awareness
• MRDA — Mission Requirements Definition and Analysis
• ASL — Approved Source List
• DTS — Data Transfer System
• DLSC — Defense Logistics Service Center
• GDOP — Geometric Dilution Of Precision
• DH — Decision Height
• AI — Action Item
• MIMR — Monthly Integration Management Review
• APA — Abort Programmer Assembly
• DSAD — Data Systems and Analysis Directorate
• LSAR — Logistics Support Analysis Record/Report
• AWS — Air Weather Service
• DPS — Data Processing System
• AES — American Electrochemical Society
• ARTCC — Air Route Traffic Control Center
• ANL — Automatic Noise Limiter
• USRA — Universities Space Research Association
• LSUR — launch site utilization report
• MS — Management System
• AIME — American Institute of Mechanical Engineers
• EWR — Engineering Work Request
• EMCON — Electromagnetic Emission Control
• CRRES — Combined Release and Radiation Effects Satellite
• MERSAT — Meteorology And Earth Observation Satellite
• AOC — Auxiliary Output Chip
• ABL — Airborne Laser
• BFC — Backup Flight Control
• CDA — Command and Data Acquisition
• AHP — Analytical Hierarchy Process
• LMRT — Logistics Management Responsibility Transfer
• LBSP — Logistics Business Systems Plan
• DP&SS — Data Processing And Software Subsystem
• BFS — Backup Flight System
• JCL — Job Control Language
• DD&T — design, development, and test
• ATO — Abort To Orbit
• A/P — Autopilot
• LEA — Logistics Engineering Analysis (Analyses)
• CZCS — Coastal Zone Color Scanner
• AOA — Airborne Optical Adjunct
• AMPS — Atmospheric Magnetospheric Plasma System
• CHL — Certified Hardware List
• MPAR — Maintainability Problem and Assessment Report
• IQT — Initial Qualification Training
• HST — Hubble Space Telescope
• MMS — Multimission Modular Spacecraft

• LLT — Long Lead Time
• ASEA — American Society of Engineers and Architects
• EOS — Earth Observing System (U.S.)
• BSP — Business System Planning
• AAFE — Advanced Applications Flight Equipment
• ADADL — Ada design and documentation language
• ALS — Advanced Launch System
• AFA — Airframe Assembly
• IRDS — Information Resource Dictionary System
• AG — Artificial Gravity
• DOY — Day of Year
• MEL — Minimum Equipment List
• ATS — Acceptance Test Specification
• ATE — Automatic Test Engineer
• AAIR — Advanced Atmospheric sounder and Imaging Radiometer
• C/O — Checkout
• A&A — Advertise and Award
• MECR — Maintenance Engineering Change Request
• ESE — Earth Science Enterprise
• EVA — Extra-Vehicular Activity
• CTCI — Contract Technical Compliance Inspection
• ISF — Industrial Space Facility
• DCN — Document Control Number
• AACS — Attitude and Antenna Control System
• DIDS — Defense Integrated Data System
• CER — Cost Estimating Relationship
• JFET — junction field effect transistor
• ADCR — Applicable Document Contractual Record
• EGSE — Electrical Ground Support Equipment
• LIU — Line Interface Unit
• FAO — FLIGHT ACTIVITIES OFFICER
• ILS — Instituteument Landing System
• EPMS — Engineering Performance Management System
• RM — Risk Management
• LDR — Low Data Rate
• DP&S — data processing and software
• CDI — Contract Definition Instruction
• ALSSW — ALS software
• CD — Candela
• ADP — Acceptance Data Package
• DSCIM — Display System Computer Input Multiplexer
• AFAPL — Air Force Aero Propulsion Laboratory
• CFAR — Constant False Alarm Rate
• ACPL — Assembly Component Parts List
• AFD — Aft Flight Deck
• IDBMS — Integrated Data Base Management System
• BMO — Ballistic Missile Office
• BHN — Brinell Hardness Number
• SDR — System Design Review
• MEOP — Maximum Expected Operating Pressure

• AOI — Area Of Interest
• EPS — Electrical Power Subsystem
• USNO — United States Naval Observatory
• ABCL — as-built configuration list
• AMEC — Aft Master Events Controller
• KIMS — KSC Inventory Management System
• ATG — Aerospace Test Group
• CCO — Customer Contracting Officer
• ISO — Infrared Space Observatory
• OC — Optical Carrier
• SLOC — Source Lines Of Code
• CRES — Corrosion Resistance Steel
• ALL — Airborne Laser Laboratory
• AASM — Association of American Steel Manufacturers
• LMDS — Logistics Management Data System
• CCIR — International Radio Consultative Committee (French Acronym)
• AFCSC — Air Force Cryptologic Support Center
• AI/ES — artificial intelligence/expert system
• AF — Aft Fuselage
• AFDO — Aft Flight Deck Operator
• CSTA — Crew Software Training Aid
• ACME — Attitude Control and Maneuvering Electronics
• ASG — Aeronautical Standards Group
• CMOS — Complementary Metal Oxide Semiconductors
• BS — Beam Splitter
• ABI — Avionics Bus Interface
• MIPS — Merritt Island Press Site
• OIG — Office of Inspector General
• IRM — Information Resources Management
• AOM — acoustic-optic modulator
• FID — Flight Implementation Directive
• AP — access point
• GB — Gigabit
• DSR — Data Storage and Retrieval
• AOQL — Average Outgoing Quality Limit
• AC — Aerodynamic Center
• AMI — Alpha/Mach Indicator
• LOR — Lunar Orbit Rendezvous
• AIST — Agency Of Industrial Science And Technology (Japan)
• ID&C — integrated displays and controls
• A&E — Architectural and Engineering
• AEM — Acoustical Emission Monitoring
• FED — Flight Events Demonstration
• ASD — advanced systems development
• DEMUX — Demultiplexer
• VC — Virtual Channel
• IG — Inspector General (HHS)
• DDC — Direct Digital Control
• ASE — Airborne Support Equipment
• JTG — Joint Training Group

• MLW — Maximum Landing Weight
• GOASEX — GULF OF ALASKA SEASAT EXPERIMENT
• EMISM — Electromagnetic Interference Safety Margin
• SDF — Software Development Facility
• AOD — Aircraft Operations Division
• AFAL — Air Force Astronautics Laboratory
• ADL — Ada Design Language
• ANMCC — Alternate National Military Command Center
• BFCS — Backup Flight Control System
• ABL — aircraft-based laser
• HNCO — high-precision numerical-controlled oscillator
• KOH — potassium hydroxide
• SPF — Software Production Facility
• VSOP — VLBI Space Observatory Program
• ERSIR — Earth Resources Shuttle Imaging Radar
• ESRO — European Space Research Organisation
• A/S — Ascent Stage
• DBCI — DB With Respect To A Circular Polarized Antenna
• ACEL — Air Crew Equipment Laboratory
• ACM — Acquisition Control Module
• NPR — National Performance Review (office)
• ISSA — Integrated Software Safety Analysis
• ATP — Acceptance Test Plan
• GSF — Gyro Scale Factor
• HEOO — Honeywell Electro-Optical Operations
• NM — New Mexico
• ALAS — Approach/Landing Autopilot Subsystem
• LIS — Logistics Information System
• AFSCN — Air Force Space Command network
• ASE — Aerospace Support Equipment
• CARDE — Canadian Armament Research and Development Establishment
• AET — Aerosurface End-to-end Test
• EDCC — Engineering Drawing Control Center
• AFD — Assistant Flight Director
• CAR — Contractual Action Request
• CNWDI — Critical Nuclear Weapons Design Information
• CC — Control Center
• PAO — Public Affairs Officer
• MSCB — Manufacturing Status Control Board
• DC — District of Columbia
• AEDC — Arnold Engineering Development Center
• GSR — Galvanic Skin Response
• ABNCP — Airborne National Command Post
• AFFTC — Air Force Flight Test Center
• OP — Operational
• A&S — Alignment and Stabilization
• SDR — Software Defined Radio
• C/B — Circuit Breaker
• ADI — Attitude director indicator
• SV — Space Vehicle

• HK — Housekeeping
• STS — Synchronous Transport Signal
• ALTR — Approach and Landing Test Requirement
• APCA — Aft Power Controller Assembly
• B/P — blood pressure
• MOL — Manned Orbital Laboratory
• JO — Job Order
• FCTB — Flight Crew Training Building
• AFC — Aerodynamic Flight Control
• MEWG — Maintenance Engineering Working Group
• FDL — Flight Director Loop
• ATH — Above the Horizon
• LPLWS — Launch Pad Lightning Warning System
• QRA — Quantitative Risk Assessment
• ASI — Airspeed Indicator
• ACA — Attitude Controller Assembly
• ABCP — Airborne Command Post
• AMI — airspeed/Mach indicator
• ATAC — Advanced Technology Advisory Committee
• LSSL — Life Sciences Space Laboratory
• DPSK — Differential Phase Shift Keying
• CVD — Chemical Vapor Deposition
• BASD — Ball Aerospace Systems Division
• CAA — Civil Aeronautics Administration
• FFSAC — field functional systems assembly and checkout
• ADB — Aerodynamic Data Book
• CRO — Cathode-Ray Oscilloscope
• ACIP — Aerodynamic Coefficient Identification Package
• KSCAP — Kennedy Space Center Area Permit
• FRG — Federal Republic of Germany's
• JOC — joint operations center; joint oversight committee
• LCC — Launch Commit Criteria
• AA — Airplane Avionics
• FCDB — Flight Control Data Bus
• FTPF — Flight and Training Planning Facility
• ADR — Aerospace and Defense Research
• BSEE — Bachelor of Science degree in electrical engineering
• CAP — Corrective Action Plan
• A-G — Air-to-Ground
• DPSD — Data Processing Systems Division
• AFMTC — Air Force Missile Test Center
• ASTE — American Society of Tool Engineers
• NPD — NASA Policy Directive
• ECRA — Engineering Change Request Authorization
• FD — Flight Dynamics
• AFDE — Aft Flight Deck Equipment
• FM/PM — Frequency Modulation/Phase Modulation
• ROSAT — Roentgen Satellite
• ASO — Aviation Safety Office
• ACN — Ascension Island

• AO — Analog Output
• AAE — Aerospace Auxiliary Equipment
• FHF — First Horizontal Flight
• ISO — Information Systems Office
• MMDS — Maintenance Management Data System
• LOI — Lunar Orbit Insertion
• NIR — Near Infrared
• ISCCB — Internal Software Change Control Board
• BRL — Ballistic Research Laboratory
• DVM — Digital Voltmeter
• CPAF — Cost Plus Award Fee (Type of Contract)
• LSCA — Logistics Support Cost Analysis
• CDID — Contract Data Item Description
• MMACS — Maintenance Management and Control System
• MOSPO — Mobile Satellite Photometric Observatory
• DODISS — Department of Defense Index of Specifications and Standards
• AFR — Air Force Regulation
• AFS — Ascent Flight System
• AICP — Aerodynamic Instrumental Coefficient Package
• LMSS — Lunar Mapping and Survey System
• AFRPL — Air Force Rocket Propulsion Laboratory (USA)
• MLG — Main Landing Gear
• DTIC — (U.S.) Defense Technical Information Center
• AFT — Aerodynamic Flight Test
• ASN — Average Sample Number
• EPM — Engineering Project Manager
• ASRM — Abort Solid Rocket Motor
• LAMPS — Light Airborne Multipurpose System (Helicopter)
• CRC — Communications Research Centre Canada
• ABM — Advance Bill of Materials
• ACPS — Attitude Control Propulsion System
• IPLS — Initial Program Load Start
• AR — Antireflection
• ACD — Architectural Control Document
• ALT — approach and landing test
• ISTP — International Solar Terrestrial Physics
• ASPP — Atmospheric and Space Plasma Physics
• DADS — Dual Air Density Satellite
• BMS — Background Measurement Satellite
• BMEWS — Ballistic Missile Early Warning System (bee-mews)
• MOM — Mission Operations Manager
• FCDC — Flexible Confined Detonating Cord
• GOCO — government-owned, contractor-operated (US)
• IFR — Instrument Flight Rules
• A/A — analog-to-analog
• SSP — Space Shuttle Program
• AVCS — Attitude and Velocity Control System
• SAS — Small Astronomy Satellite
• EMCI — Engineering Model Configuration Inspection
• DAM — Double-Aluminized Mylar

• AMS — Acoustic Measurement System
• CCR — Contract Change Request
• AIDE — Aerospace Installation Diagnostic Equipment
• FU — Flight Unit
• CAB — Civil Aeronautics Board
• AFSC — Air Force Space Command
• EIDP — end item data package
• CAM — Computer-Aided Manufacturing
• ATU — Audio Terminal Unit
• MGE — Maintenance Ground Equipment
• ADAP — Aerodynamic Data Analysis Program
• ABD — Airborne Ballistics Division
• CDD — Common Data Dictionary
• OSSE — Oriented Scintillation Spectrometer Experiment
• IRAS — Infrared Astronomy Satellite
• ARIA — Advanced Range Instrumentation Aircraft
• ATCO — Ambient Temperature Catalytic Oxidizer
• ADL — Advanced Development Laboratory
• ABM — Acquisition Bus Monitor
• BIS — Bureau of Industry and Security
• IP — International Partner
• ICBM — Intercontinental Ballistic Missile
• ASTRA — Advanced Star Tracker
• AFSPACECOM — Air Force Space Command
• ASAC — aerodynamic surfaces assembly and checkout
• CLS — Contingency Landing Site(s)
• ODY — Odyssey
• ABMCP — airborne military command post
• FLAPS — Flight Application Software
• DC&I — documentation, control, and integration
• FDAI — Flight Director Attitude Indicator
• ABLE — Airborne Laser Evaluation
• AES — Analog Event System
• DCASR — Defense Contract Administration Services Region
• ADAP — Automated Data Analysis Program
• MAN — Microwave Aerospace Navigation
• BOL — Beginning of Life
• CAM — Carrier Aircraft Modification
• ATC — Aircraft Target Computer
• AFWL — Air Force Weapons Laboratory
• DCASR-LA — Defense Contract Administration Services Region, Los Angeles
• ACUO — Avionics Cooling Unit Operator
• AMCA — Aft Motor Controller Assembly
• FO-FO-FS — fail operational/fail operational/fail safe
• AMS — Aeronautical Material Specification
• EGO — Eccentric Geophysical Observation
• FAFS — Falcon Air Force Station
• BMD — Ballistic Missile Defense; Boyevaya Mashina Desantika (Russian: airborne combat vehicle)
• CSMA/CD/TS — carrier sense multiple access/collision dlot
• L&D — Landing And Deceleration

• TM — Thematic Mapper (Landsat)
• ADFRF — Ames/Dryden Flight Research Facility
• DOMSAT — Domestic Satellite
• AMLS — Advanced Manned Launch System
• ICSU — International Council of Scientific Unions
• JCS — Joint Chiefs of Staff
• AMO — Aerospace Medical Operations
• CA — Carrier Aircraft
• BAI — Barometric Altitude Indicator
• BFO — Beat Frequency Oscillator
• CC — Carbon-Carbon
• ACES — Automatic Checkout Equipment Sequencer
• AOT — Avionics Operating Time
• LRA — Laser Retroreflector Array
• EDTS — Electronic Data Transfer System
• LWG — Logistics Working Group
• DOP — Detailed Operating Procedure
• LHS — left-hand side
• AECS — Area Entry Control System
• CASS — Consolidated Automated Support System
• DP/DT — Delta Pressure/delta Time
• FFM — free-flying module
• ATL — Avionics Test Laboratory
• KAPL — KSC Approved Parts List
• ACEU — AeroControl Electronics Unit
• FIMS — Framework for Integrated Manufacturing System
• BCR — Budget Change Request
• APRF — Army Pulse Radiation Facility
• IRBM — Intermediate-range ballistic missile
• A/O — Analog Output
• CCA — Contract Change Authority
• MFF — MDM Flight Forward
• AGAA — Attitude Gyro Accelerometer Assembly
• CLAES — Cryogenic Limb Array Etalon Spectrometer
• FRR — Flight Readiness Review
• ASP — Aerosurface Position
• ERO — Engineering Release Operation
• ASCS — Attitude Stabilization and Control System
• AD — Advanced Development
• AGCU — Attitude Gyro Coupling Unit
• A/B — Airborne
• GBS — ground-based software
• ATR — Air Transport Rating
• AM — Ante Meridiem
• BSME — Bachelor of Science degree in mechanical engineering
• CCN — Contract Change Negotiation
• AOQ — Average Outgoing Quality
• ASKA — Automatic System for Kinematic Analysis
• ASAS — Aerodynamic Stability Augmentation System
• APAS — Aerodynamic Performance and Sizing Program

• CE — Chief Engineer
• AA — air-to-air
• MTB — Materials Testing Branch
• AGC — Aerojet General Corporation
• ADS — Air Data System
• ADCS — Attitude Determination and Control Subsystem
• ASI — Augmented Spark Igniter
• ISCM — Initial Software Configuration Map
• KDS — Kennedy-Developed Software
• ABPS — air-breathing propulsion system
• AFDR — Ascent Flight Design Review
• AFTA — Acoustic Fatigue Test Article
• CIDL — Configuration Item Data List
• ALSA — astronaut life support assembly
• ABETS — airborne beacon test set
• ADMS — Automated Data Management System
• ASA — Advanced System Avionics
• AM — Aeromedical Monitor
• FFTO — Free-Flying Teleoperator
• FOD — Flight Operations Directorate
• AOT — Avionics Overall Test
• COF — Columbus Orbital Facility
• DAIS — Data Avionics Information System
• AML — Approved Materials List
• CD — current density
• ATDP — Aircraft Target Data Program
• CDMS — contractor data management system
• APM — Ascent Particle Monitor
• AFGE — American Federation of Government Employees
• CAIT — Computer-Aided Instruction Trainer
• DWS — Disaster Warning Satellite
• BMO — Business Management Office
• STK — Satellite Tool Kit
• DNC — Direct Numerical Control
• EDAC — Error Detection And Correction
• F&M — Force and moment
• EDS — Earth Departure Stage
• ARIS — Advanced Range Instrumentation Ship
• AILS — Automatic Instrument Landing System
• FOT — Flight Operation Trainer
• ESCA — photoelectron spectroscopy for chemical analysis
• MILS — Missile Impact Location System
• FDOR — Flight Design Operations Review
• FSO — Facility Security Officer
• CB — Control Board
• CI — Configuration Item
• COF — CONSTRUCTION OF FACILITIES
• AMPR — aeronautical manufacturer's planning report
• APA — Allowance for Program Adjustment
• ATA — Avionics Test Article

• COIM — checkout interpreter module
• CPPS — Computer Program Product Specification
• CAM — Civil Aeronautics Manual
• CALST — Cornell Aeronautical Laboratory Shock Tunnel
• FRDR — Flight Readiness Design Review
• FSW — Flight Software
• AMTF — Acoustic Model Test Facility
• KBSA — Knowledge-Based Software Assistant
• CTF — Commit To Flight
• AVE — Aerospace Vehicle Equipment
• GBR — Ground-Based Radar
• CPIC — Computer Program Integration Contract
• ARU — Attitude Reference Unit
• ASG — Avionic Subsystems Group
• HLLV — Heavy-Lift Launch Vehicle
• CTV — Compatibility Test Van
• AFSD — Air Force Space Division
• AAO — Astronaut Activities Office
• MP&C — Maintenance Planning And Control
• LSMDB — logistics simulation models and data bases
• MPRAS — multipath redundant avionics suite
• DCMA — Defense Contract Management Agency
• CAIT — Computer-Aided Instruction Terminal
• FHST — fixed-head star tracker
• ADI — Attitude Display Indicator
• FMO — Flight Medical Officer
• CDRS — Contract Data Requirements Schedule
• G/T — ratio of antenna gain to receiver noise temperature
• FCTS — Flight Crew Trainer Simulator
• C2 — Command and Control Class C2
• ILA — Instrument Landing Approach
• A/G — air-to-ground
• AP — Administrative Procedure
• AID — Abbreviated Item Description
• COFW — Certificate of Flight Worthiness
• EDF — Engineering Data File
• AGREE — Advisory Group in Reliability of Electronic Equipment
• FAB — Flight Assignment Baseline
• ACO — assembly checkout
• BIB — Blocked Impurity Band
• ABC — Automatic Brightness Control
• AVL — Avionics Verification Laboratory
• KEE — knowledge engineering environment
• A/S — arm/safe
• FCOD — Flight Crew Operations Directorate
• APM — Assistant Project Manager
• AUB — Aft Utility Bridge
• A/N — account name
• CRPL — Cosmic Ray Physics Laboratory
• AGARD — Advisory Group for Aeronautical Research and Development

• HSI — Horizontal Situation Indicator
• ST — Space Telescope
• ASRM — Advanced Solid Rocket Motor
• IMLEO — Initial Mass in Low Earth Orbit
• ATL — Advanced Technology Laboratories
• ASR — Air-Sea Rescue
• IHA — Interface Hazard Analysis
• FQI — Flight Qualification Instrumentation
• TBR — To Be Resolved
• DAA — Designated Approval Authority
• ADAC — Attitude Determination and Control
• FCEF — Flight Crew Equipment Facility (At KSC)
• AAMP — Advanced Architecture Microprocessor
• AD — Associate Director
• FEWG — Flight Evaluation Working Group
• TOGA — Tropical Ocean Global Atmosphere
• GSDL — Ground Software Development Laboratory
• ASA — Aerosurface Amplifier
• CMAG — Cruise Missile Advanced Guidance
• ASCP — Attitude Set Control Panel
• FTIS — Flight Test Instrumentation System
• CDC — Control Data Corporation, Incorporated
• MAPTIS — Materials and Processes Technical Information System
• AMFL — Aeromedical Field Laboratory
• AAE — Abort Advisory Equipment
• A/R — autoland roll-out
• CMN — Contract Master Network
• MS/MS — Material Science and Manufacturing in Space
• AEM — Arsenal Exchange Model
• SOE — Sequence Of Events
• MAGSAT — Magnetometer Satellite
• AIU — Avionics Interface Unit
• LQR — Linear Quadratic Regulator
• AOA — American Ordnance Association
• ATCS — Active Thermal Control System/Subsystem
• EDCP — Engineering Design Change Proposal
• CMB — Configuration Management Board
• AED — Aerospace Electrical Division
• AFFDL — Air Force Flight Dynamics Laboratory
• FCCP — Firm Contract Cost ProPosal
• AOS — Advanced Orbiting System
• AEC — American Engineering Council
• AID — Analog Input Differential
• AR — Acceptance Review
• CCU — Camera Control Unit
• MAEP — Minimum Autoland Entry Point
• MCD — Minimum Cost Design
• BOW — Bill of Work
• GDS — Ground Data System
• AFSRT — avionics flight systems readiness test

• EEPROM — electrically erasable read-only memory
• CASE — Computer-Aided System Engineering
• A/S — acquisition sensor
• FCIM — Flight Control Interface Module
• IPLC — Initial Program Load Complete
• CCR — Contractor Change Review
• A/S — auxiliary stage
• FVV — Facility Verification Vehicle
• ANT — Antigua and Barbuda
• AFAL — Air Force Avionics Laboratory
• MON — Monitor
• AB — Airborne
• ASSESS — Airborne Science Shuttle Experiments System Simulation
• UMA — University of Massachusetts Amherst
• ITDR — Integrated Technology and Design Review
• AFD — Acceptance For Data
• AFF — Acceptance and Ferry Flight
• ACB — air-cushion barge
• EOCR — Engineering Order Control Record
• TM — Technical Monitor
• FIA — Flight Integration Assessment
• FEDP — Facility and Equipment Design Plan
• ABCR — As-Built Configuration Record
• INASSB — indium-arsenide-antimonide
• IOP — Intensive Observing Period
• LDIU — Launch Data Interface Unit
• AMK — Aircraft Modification Kit
• A/J — antijam
• EEEU — End Effector Electronics Unit
• RADARSAT — Radar Satellite
• ASED — Avionics System Engineering Division
• ADS — Attitude Display System
• ATCA — attitude translation control assembly
• DTV&I — development, test, verification, and integration
• API — Air Position Indicator
• AME — Abort Maneuver Evaluator
• CAPS — Common Attitude Pointing System
• EPOC — External Payload Operations Center
• BMAG — Body-Mounted Attitude Gyro
• EDIV — Engineering Design Intent Verification
• GFY — Government Fiscal Year
• ATDAP — aircraft target data acquisition program
• ALTS — Avionics LRU Tracking System
• IQSY — International Quiet Sun Year
• CAL — Cornell Aeronautical Laboratory
• AFTOC — Air Force Tactical Operations Center
• A/L — Airlock
• FCIP — Flight Cargo Implementation Plan
• NMI — Nautical Mile
• ALC — Automatic Light Control

• MSVP — Master Shuttle Verification Plan
• DMIS — Data Management Information System
• APCP — Aerojet Photoelectric Cell Program
• AIR — Action Item Report
• BESS — Biomedical Experiment Scientific Satellite
• EFA — Experiment Flight Application
• ATR — Air Transport Radio
• AMG — Activation Management Group
• BESS — Biomedical Experiment Support Satellite
• BAC — Booster Assembly Contractor
• GIBIS — Graphical Issue-Based Information System
• E&O — engineering and operations
• AAA — Astronaut-Actuated Abort
• AER — Atomic Energy Research
• DFRF — Dryden Flight Research Facility
• CC — Contract Completion
• APU — Auxiliary Propulsion Unit
• FTVE — functional technology validation experiment
• AFI — Automatic Fault Isolation
• FDRI — Flight Director Rate Indicator
• AMAL — Aeronautical Medical Acceleration Laboratory
• ETR — Eastern Test Range (ESME Preferred)
• AED — Analog Event Distributor
• RTLS — Return To Launch Site
• AET — Algorithm Evaluation and Test
• MODART — method of defeating advanced radar threats
• ABERT — Auto Bit Error Rate Test
• ALCM — Air-Launched Cruise Missile
• MEDS — Mechanical Engineering Design System
• CDRR — Contract Documentation Requirements Records
• ASTG — Aerospace Test Group
• AFSWC — Air Force Special Weapons Center
• CE/CK — computer entry/control keyboard
• LG — Landing Gear
• E/D — edge distance
• EVO — Engineering Verification Order
• ALE — Airborne Laser Experiment
• IDWA — Interdivisional Work Authorization
• FIT — Fault Isolation Test
• CAB — Corrective Action Board
• CCAS — Cape Canaveral Air Station
• BOC — Base Operations Contract
• FDP — Flight Design Panel
• CBIL — common and bulk items list
• FAWG — Flight Assignment Working Group
• JAS — Journal of Aerospace Science
• FEPC — Flight Equipment Processing Contractor
• DVE — Design Verification Experiment
• JURG — Joint Users Requirements Group
• MLC — Mobile Launcher Computer

• AA — American Airlines
• SA — Single Access
• LLCSC — low-level computer software component
• CAD — Computer-Aided Dispatch
• ATV — Automated Transfer Vehicle
• ESSC — Engineering Support Services Contract
• DISCO — Defense Industrial Security Clearance Office
• DDAS — Digital Data Acquisition System
• AGCS — Automatic Ground Control Station
• A/A — airplane avionics
• CCO — Contract Change Order
• FCSM — Flight Combustion Stability Monitor
• HCI — hardness-critical item
• CMOS/SOS — complementary metal oxide semiconductor/silicon
• AECS — Automated Entry Control System
• FOE — Flight Operations Engineer
• C/W — Carrier Wave
• FMCF — First Manned Captive Flight
• ABCF — As-Built Configuration File
• M&R — Maintenance and Refurbishment
• GTAW — gas tungsten arc welding
• MIL-STD — Military Standard
• AFOSH — Air Force Occupational Safety and Health
• AGT — Adaptive Guidance Throttling
• GLP — Goal Language Processor
• IDOS — Integrated Display Operating System
• EOI — Earth Orbit Insertion
• LSPDF — Life Science Payload Development Facility
• ACRV — Assured Crew Return Vehicle
• FD/FI — Fault Detection/Fault Isolation
• GLAADS — Gun Low-Altitude Air Defense System
• CCS — Central Control Station
• IONET — Internet Protocol Operational Network
• HRI — High Resolution Imager
• JAEIC — Joint Atomic Energy Intelligence Committee
• BAC — Boeing Aircraft Company
• FFR — Flight Feasibility Review
• ACSN — Advance Change/Study Notice
• ADAM — Automated Distributed Architecture Model
• CAB — Civil Aviation Board
• ASPI — Aerosurface Position Indicator
• AMOOS — Advanced Maneuvering Orbit-to-Orbit Shuttle
• FCHL — Flight Control Hydraulics Laboratory
• GET — Ground Elapsed Time
• LACB — Landing Aids Control Building (SLF At KSC)
• DECNET — Digital Equipment Corporation Network
• CCW — Counterclockwise
• ACCU — Audio Central Control Unit
• ASE — Advanced Space Engine
• AILAS — Automatic Instrument Landing Approach System

• FCD — Flight Control Division
• ASR — Avionic System Review
• DII — Defense Industry Initiative
• DSS — Deep Space Station
• SAIL — Shuttle Avionics Integration Laboratory (JSC)
• ART — Automated Reasoning Tool
• ASTRO — Ascent Trajectory Optimization
• AADS — Ascent Air Data System
• CRL — Countermeasure Readiness Level
• CPCEI — Computer Program Contract End Item
• EEM — Earth Entry Module
• AGS — Abort Guidance System
• ASTF — Aeropropulsion System Test Facility
• AA — Angular Accelerometer
• ERAP — Earth Resources Aircraft Program
• ASC — Aerodynamic Surface Control
• ASTD — Advanced Space Technology Division
• IMS — Integrated Master Schedule
• FQ — Flight Qualification
• MSLD — Mass Spectrometer Leak Detector
• ATDB — Aerothermodynamic Data Book
• ALU — arithmetic/logic unit
• SV — Schedule Variance
• AEB — Aft Equipment Bay
• DITMCO — Drive-In Theater Manufacturing Company's wire harness insulation analyzer
• ME&D — manufacturing engineering and development
• JTSC — Joint Test Support Center
• JSTARS — Joint Surveillance and Target Attack Radar System
• AACCS — Analytical Approach to Candidate Constellation Selection
• AR — Anomaly Report
• DGZ — Desired Ground Zero
• CCS — Contract Control System
• A/F — Air-to-Fuel ratio
• FEO — Field Engineering Order
• BF — Beat Frequency
• ACES — Acceptance Control Equipment Section
• FASCOS — Flight Acceleration Safety Cutoff System
• AEC — Aft End Cone
• ANARS — autonomous navigation and attitude reference system
• EHS — environmental health services
• HBT — Heflex Bioengineering Test
• US — Upper Stage
• ESRIN — European Space Research Institute
• AF — Airframe
• NSC — Norwegian Space Center
• AFL — Astrobiology Field Laboratory
• ACCE — Augmented Continuous Control Evaluator
• BOPACE — Boeing Plastic Analysis Capability for Engines
• AFMDC — Air Force Missile Development Center
• ATOS — Automated Technical Order System

• AA — Antiaircraft Artillery
• ERIM — Environmental Research Institute of Michigan
• ESOC — European Space Operations Center
• ARS — Air Rescue Service
• AB — Airborne Bombing
• ACS — Attitude Control and Stabilization
• DSIS — Defense Satellite Information System
• BA — Breathing Air
• FFBD — Functional Flow Block Diagram
• AFP — Air Force Plant
• COMAS — Combined Orbital Maneuvering and Abort System
• KATE — Knowledge-based Autonomous Test Engineer
• FTS — Federal Telecommunications System
• CMAO — Contract Management Assistance Officer
• FPR — Flight Performance Reserve
• DBN — Data Bus Network
• LOLI — limited-operational-life items
• AJ — Assembly Jig
• IPACS — integrated power and attitude control system
• HDTV — High-Definition Television
• GEC — General Electrodynamics Corporation
• FRCI — Fibrous Refractory Composite Insulation
• AIS — Action Item Sheet
• FIIG — Federal Item Identification Guide
• GRE — Gamma Ray Explorer
• AFTS — Aft Fuselage Thrust Structure
• ARCOMSAT — Arab League communications satellite
• FPV — Flow Proportioning Valve
• MPM — Manipulator Positioning Mechanism
• AP — Autopilot
• LCC — Launch Control Complex
• EM&IAS — electromechanical and integrated avionics subsystem
• MOF — Manned Orbital Flight
• NMC — Network Management Center
• CAL — Contract Advice Letter
• FCSD — Flight Crew Support Division
• BUFC — Backup Flight Controller
• DTF — Development Test Facility
• ABLOS — Algorithm Beam Line of Sight
• FSN — Federal Stock Number (now NSN)
• HMCF — Hypergolic Maintenance and Checkout Facility
• ADPF — Automated Data Processing Facility
• GRO — Gamma Ray Observatory (NASA)
• ACCS — Adaptive Communication Control Subsystem
• ATLAS — Abbreviated Test Language for Avionic Systems
• DBIU — Data Bus Interface Unit
• EODRS — Earth observation data retrieval system
• ATS — Administrative Terminal System
• LAGS — Launch Abort Guide Simulation
• SSO — Space Shuttle Orbiter

• ADH — Advanced Development Hardware
• ALRUTS — Automated Line Replaceable Unit Tracking System
• GMAW — Gas Metal Arc Welding
• AFTA — Aft Frame Tilt Actuator
• LLP — Launch and Landing Project
• ADU — Annunciator Display Unit
• AMG — Angle of the Middle Gimbal
• AOT — Actual Operating Time
• EMM — Electromechanical Mockup
• BPR — Bypass Ratio
• FCAF — Flight Crew Accommodation Facility
• G/A/G — ground to air to ground
• FESP — Flight Execution Support Plan
• AGO — Santiago, Chile Tracking Station
• LPS — Launch Processing System
• TM — Technical Memorandum
• ASDE — Aerosurface Driver Electronics
• GN — Ground Network
• FWB — Fahrenheit Wet Bulb
• BN — Bullnose
• LOWG — Landing Operations Working Group
• AI — Associate Investigator
• LVO — Launch Vehicle Operations
• EDLS — Engineering Drawing Library System
• BWO — Backward Wave Oscillator
• MLE — Mesoscale Lightning Experiment
• HABP — Hypersonic Arbitrary Body Program
• AOA — Abort Once Around (shuttle Abort Plan)
• SAREX — Shuttle Amateur Radio Experiment
• EORQ — engineering order request for quotation
• ATI — Average Total Inspection
• LON — Launch on Need
• AMIC — Automated Management Information Center
• CA — Cone Angle
• ACMB — Applications Configuration Management Board
• OD — Orbit Determination
• ALFA — Air-Lubricated Free Attitude
• AF — Award Fee
• ACRC — Assured Crew Return Capability
• ACTS — Acquisition Coarse Tracker Subsystem
• MSME — Master of Science degree in mechanical engineering
• CPDDS — Computer Program Detail Design Specification
• JAN — Joint Army-Navy
• BARS — Baseline Accounting and Reporting System
• AVCOR — algorithm vibration correlation
• LVFRR — launch vehicle flight readiness review
• DIPEC — Defense Industrial Plant Equipment Center
• IOA — Input/Output Adapter
• ADSF — Automatic Directional Solidification Furnace
• CLSO — Contingency Landing Support Officer

• ARTO — Advanced Radiation Technology Office
• AMC — Army Missile Command
• AOD — Assistant Operations Director
• SW — Space Wing
• ALPS — Advanced Liquid Propulsion System
• AA — Antiaircraft
• LME — Launch Monitor Equipment
• NF — Noise Figure
• ISB — Independent Side Band
• FOSA — Flight Operations Support Annex
• LAIU — Launch Abort Interface Unit
• CBB — Contract Budget Baseline
• LETF — Launch Equipment Test Facility
• ACLS — automated control and landing system
• CCBD — Configuration Control Board Directive
• CDF — Confined Detonating Fuse
• AI — Airspeed Indicator
• CDF — Central Data Facility
• ASO — Australian Space Office
• ABT — Air-Bearing Table
• ALCC — Airborne Launch Control Center
• A/F — airframe
• LRB — Liquid Rocket Booster
• ERCM — Engineering Requirements and Change Management
• PI — Principle Investigator
• LVIP — Launch Vehicle Integration Plan
• AFSIG — Ascent Flight System Integration Group
• AGL — Absolute Ground Level
• MSO — Manufacturing Safety Office
• APOD — Astronomy Picture of the Day
• CA — Contract Advice
• KATS — Ksc Avionics Test Set
• AFWPAL — Air Force Wright-Patterson Aeropropulsion Laboratory
• BMO — Ballistic Missile Organization
• ASTS — Avionic System Test Specification
• HG — High Gain
• ACU — Annunciator Control Unit
• MFTAD — Master Flight Test Assignment Document (JSC)
• CND — Cannot Duplicate
• EWM — Engineering Wring-out Meeting
• CORE — Common Operational Research Equipment
• AMOS — Air Force Maui optical site
• BOE — Break of Entry
• EEU — Extravehicular Excursion Unit
• CC — Cost Center
• ACL — Ascent Closed Loop
• P2P — Point-To-Point
• AMC — Automatic Mixture Control
• ADPL — As-Designed Parts List
• FBAS — fixed-base aft station

• ADP — Astrophysics Data Program
• GEO — Geosynchronous Earth Orbit
• FOH — First-Order Hold
• ACCESS — Assembly Concept For Construction Of Erectable Space
• WAD — Work Authorization Document
• MLGS — Microwave Landing Guidance System
• ALDO — Activity-Level-Dependent Operation
• FCOB — Flight Crew Operations Branch
• CADDS — computer-aided design and drafting system
• ALSE — Astronaut Life Support Equipment
• ALS — Alternative Landing Site
• LBR — Low Bit Rate
• AAMRAM — air-to-air medium-range missile
• CM — Command Module
• AVC — Automatic Volume Control
• ATP — Acceptance Test Program
• ASTM — American Society for Testing Materials
• ACCN — Audit Central Control Network
• SM — Service Module
• PMB — Performance Measurement Baseline
• IOF — Initial Operational Flight
• ASAPTS — automated scheduling and product tracking system
• ALVIB — algorithm payload vibration
• MAIL — Mockup and Integration Laboratory
• EAROM — Electrically Alterable Read-Only Memory
• AMIS — Acquisition Management Information System
• FCTR — Flight Controller Training Room
• AGN&C — advanced guidance, navigation, and control
• ADS — Audio Distribution System
• ATE — Aerospace Training Equipment
• FMT — Flight Management Team
• BI — Background Information
• DD&R — data display and review
• EMPGS — Electromechanical Power Generation Subsystem
• AUTO-BF — automatic body flap
• HDR — High Data Rate
• MM&TS — master manufacturing and test schedule
• EDL — Engineering Development Laboratory
• ARFDS — automatic reentry flight dynamics simulator
• HQR — Handling Qualities Rating (Cooper-Harper)
• EXMATCH — expert drawing matching system
• KOM — KSC Organizational Manual
• FM/FM — Frequency Modulation/Frequency Multiplexing
• APLAC — Analysis Program Linear Active Circuit
• LUT — Launch Umbilical Tower
• C/C — Combustion Chamber
• MMA — Moving Mechanical Assembly
• AEC — Aft Events Controller
• FRFT — Flight Readiness Firing Test
• MACO — Major Assembly Checkout

• IAT — Integrated Avionics Test
• AETL — Approved Engineering Test Laboratory
• EMES — electrical, mechanical, and environmental systems
• FRCS — Forward Reaction Control System (Subsystem)
• FIE — Flight Instrumentation Engineer
• ACES — Acceptance Checkout and Evaluation System
• FISA — Facility Inspection Shakedown Acceptance
• AG — Attitude Gyro
• HUL — Hardware Utilization List
• ADPS — Acceptance Data Package System
• ISL — Inertial Systems Laboratory
• LEV — Lunar Excursion Vehicle
• AA/AL — airplane avionics/autoland
• DCSU — Digital Computer Switching Unit
• NSI — NASA Science Internet
• BRS — Bottom Right Side
• CATS — Change Action Tracking System
• CPEI — Computer Program End Item
• AFSATCOM — Air Force satellite communication(s)
• AB — Air Bearing
• LBTPP — launch base test plan/procedure
• AFML — Air Force Materials Laboratory
• A/M — auto/manual
• C/O — Cutoff
• ICWG — Interface Control Working Group
• AFWAL — Air Force Weapons Analysis Laboratory
• AMY — ADA Management Yield
• AOS — Airborne Optical System
• AAS — Abort Advisory System
• AQL — Acceptance Quality Level
• ALS — Ada Language System
• ARQ — Automatic Request
• AFO — Abort From Orbit
• EBU — Eyeballs Up (-GZ)
• LRF — Liquid Rocket Fuel
• MGSE — Mechanical Ground Support Equipment
• IGY — International Geophysical Year (1 July 1957 - 31 December 1958)
• ASDM — Aerosurface Driver/Monitor
• CMA — China Meteorological Administration
• ACMA — Army Class Managing Activity
• LULAC — League of United Latin American Citizens
• AMCR — Automated Master Change Record
• ADD — Architecture Definition Document
• ABA — dc amplifier, buffer, and attenuator
• SA — System Administrator
• AADR — Applications Approval Design Review
• FBB — Flyback Booster
• LFV — Lunar Flying Vehicle
• AA/AL — automatic approach/autoland
• JED — Julian Ephemeris Date

• ALDC — Automatic Load and Drive Control
• AAA — allocations, assessments, and analysis
• LMSC — Lockheed Missiles and Space Corporation
• ACSU — Alternating-Current Switching Unit
• BR — Bit Rate
• FKB — flight display keyboard
• TDRS — Tracking and Data Relay Satellites
• AV — Audiovisual
• ASO — Astronomical Search for Origins
• CBP — Connector Bracket Power
• EDLN — Engineering DeveloPment Logic Network
• DOAMS — distant-object attitude-measuring system
• CFAE — contractor-furnished airborne equipment
• FIAB — Flight Integration Assessment BOard
• CDB — Command Data Base
• ACIL — Automatic Controlled Instrument Landing
• ADTA — Air Data Transducer Assembly
• AIM — Automatic Information Management
• FRF — Flight Readiness Firing
• EMWA — Engineering Minor Work Authorization
• ITMG — Integrated Thermal/Micrometeoroid Garment
• ATVC — Automatic Thrust Vector Control
• AICS — Action Item Closeout Sheet
• A/FM — arm firing mechanism
• ISIL — interim support items list
• IOU — Input/Output Unit
• ATC — Assistant Test Conductor
• FOIH — Flight Operations Integration Handbook
• ACRES — automated change request and evaluation system
• CPIF/AF — cost plus incentive fee/award fee
• FSED — full-scale engineering development (US)
• CAS — Cooperative Application Satellite
• AGS — antigravity suit
• ILSWG — Integrated Logistics Support Working Group
• LET — Linear Energy Transfer (in Spacecraft Power Systems)
• IHSR — Integrated Hardware/Software Review
• ACRS — Advisory Committee on Reactor Safeguards
• FOST — Flight Operations SUPPOrt Team
• DCN — Document Change Notice
• ALV — Advanced Launch Vehicle
• LUPI — Laser Unequal Path Interferometer
• ASM — air-to-surface missile
• CTV — Crew Transfer Vehicle
• AFP — Advanced Flexible Processor
• ALASAT — Air-Launched Antisatellite
• G&A — General and Administrative Overhead
• AH — Attitude Hold
• EIAT — end item acceptance test
• IVSI — Instantaneous Vertical Speed Indicator
• ATLAS — analysis of thrust structure loads and stresses

• AHI — Artificial Horizon Indicator
• ADU — Ascent Driver Unit
• DAF — Data Analysis Facility
• AFE — Aeroassist Flight Experiment
• APM — Associate Program Manager
• APC — Aft Power Controller
• ADACS — Attitude Determination And Control System
• FMAHTS — Flight Manifest and Hardware Tracking System
• ATDRP — aircraft target data reduction program
• EICD — Experiment Interface Control Document
• ADIC — Air Defense Intelligence Center
• CD — Coefficient of Drag
• MRR — Mission Readiness Review
• FSD — Flight Simulation Division (JSC)
• BDT — Block Data Transfer
• FDCF — Flight Design Control Facility
• MODS — Military Orbital Development System
• BPMS — Blood Pressure Measuring System
• ATE — Airborne Test Equipment
• AGE — Automatic Ground Equipment
• FRRID — Flight Readiness Review Item DisPosition
• OLA — Operating Level Agreement
• IBF — Internally Blown Flap
• LSAH — Launch Site Accommodations Handbook
• ARES — Advanced Railroad Electronic System
• GDR — Geophysical Data Record
• EVM — Earth-viewing module
• GSPF — Ground Software Production Facility
• FUT — Flight Unit Test
• LOAD — Low-Altitude Defense
• CA — Completion of Assembly
• ADS — Air Data Sensor
• ASP — Attached Shuttle Payload
• FBM — fleet ballistic missile submarine
• ATVCS — automatic thrust vector control system
• EOPAP — Earth and Ocean Physics Application Program
• ARCS — Aft Reaction Control Subsystem
• ACL — Allowable Container Load
• AHM — Automatic Hold Mode
• AGCA — Automatic Ground-Controlled Approach
• AFETRM — Air Force Eastern Test Range Manual
• BPI — Boost Phase Intercept
• IFTS — In-Flight Test System
• FOGM — Fiber-Optic Guided Missile
• C-C — Carbon-Carbon
• G/S — Glide Slope
• KSSS — KSC Station Set Specification
• LSID — Launch Sequence and Interlock Document
• ARS — Air Revitalization System
• ALRC — Aerojet Liquid Rocket Company

• MBAC — Marshall Booster Assembly Contractor
• AFWTR — Air Force Western Test Range
• APIRD — authorized procurement information requirements
• CDA — Critical Design Audit
• FIRSSE — Far Infrared Sky Survey Experiment
• FIIN — Federal Item Identification Number
• AWAA — attack warning and attack assessment
• FO-FS — fail operational/fail safe
• ECOS — Experiment Computer Operating System
• ASC — American Satellite Corporation
• GEODSS — ground-based electro-optical deep-space surveillance
• APAE — attached payload accommodations equipment
• AE — architectural and engineering
• UPS — User Planning System
• BSU — Bowie State University
• AFPR — Air Force Plant Representative
• DMO — Data Management Office
• PM — Post Meridiem
• C/O — Changeout
• ASAT — Antisatellite
• ACLC — Adaptive Communication Live Controller
• EID — End Item Documentation
• FOPG — Flight Operations Planning Group
• AC — Accomplishment Criteria
• AGI — Agreement Item
• CBE — Connector Bracket Experiment
• HPICS — heat pipe instrumentation and control system
• CC — Color Code
• NPP — NPOESS Preparatory Project
• ABCAS — Algorithm Beam Center And Shape
• GPU — Ground Power Unit
• BTH — Below the Horizon
• AFPD — Authorization for Program Development
• EMN — Engineering Management Network
• ATVC — Ascent Thrust Vector Control
• KPD — KSC Program Directive
• AHR — Ablative Heat Rate
• ATP — acquisition, tracking, and pointing
• AID — Action Item Disposition
• AIST — Advanced Interferometric System Technology
• COSATI — Committee On Scientific And Technical Information
• FUSE — Far Ultraviolet Spectroscopy Explorer
• AMCM — Advanced Missions Cost Model
• CADU — Control And Display Unit
• MSSTM — military space system technology model
• AGL — Above-Ground Link
• APSAP — auxiliary propulsion system aft pod
• FACC — Ford Aerospace and Communications Corporation
• AFSTC — Air Force Satellite Test Center
• GCI — ground-controlled interception

• ABM — Antiballistic Missile
• ASSE — American Society of Sanitary Engineers
• CATS — Correspondence Action Tracking System
• ASRC — Arctic Slope Regional Corporation
• CI — Composite Index
• AFETR — Air Force Eastern Test Range
• CISS — Centaur Integrated Support Structure
• FAMOS — Flight Acceleration Monitor System
• BECO — Booster Engine Cutoff
• CAD — Computer-Aided Drawing
• ACSN — Advance Change Schedule Notice
• ADSA — alternate demonstration structural article
• HIM — Hardware Interface Module
• BOI — Break of Integrity
• AGAP — attitude gyro accelerometer package
• AFSA — Air Force study and analysis
• AFEC — Award Fee Evaluation Committee
• IORL — Input/Output Requirements Language
• EOPF — End of Powered Flight
• CCP — Computer Control Panel
• MRIR — medium-resolution infrared radiometer
• ANRA — Air Navigation Radio Aid
• CWE — Caution and Warning Electronics
• AM — Airlock Module
• C&W — Caution and Warning
• MOI — moments of inertia
• ALPS — Approach and Landing Procedures Simulator
• FHC — flight half-coupling
• ETB — Equipment Transfer Bag
• ALE — Airport Lighting Equipment
• MIMS — Medical Information Management System
• LGA — Low Gain Antenna
• ICAAD — interactive computer-aided analysis and design
• MEP — Management Education Program
• KCAS — Knots Calibrated Airspeed
• CDSF — Commercially Developed Space Facility
• ARPESH — accurate and reliable prototype Earth sensor head
• ADRL — Automatic Drawing Release List
• MSOB — Manned Spacecraft Operations Building
• FSDU — Frequency Synthesizer and Distribution Unit
• HR&T — heat rejection and transport
• AHS — Aft Heat Shield
• PDL — Ponce de Leon
• BP — Base Plate
• AGOSS — Automated Ground Operations Scheduling System
• LDEC — Lunar Docking Events Controller
• AIU — Abort Interface Unit
• ALSS — Advanced Life Support System
• CCTCF — communication circuit technical control facility
• L&L — Launch And Landing

• TRR — Test Readiness Review
• AOCP — ac on-board computer program
• AEDS — Analog Event Distribution System
• LCCD — Launch Commit Criteria Document
• CADE — controller/attitude direct electronics
• ADF — Automatic Display Finder
• MALT — Model Assembly List Transmittal
• FRP — Fuselage Reference Plane
• ACM — Auxiliary Core Memory
• EORSAT — Electronic Ocean Reconstruction Satellite
• HAR — Hazard Analysis Report
• ASRE — American Society of Refrigerating Engineers
• FOPS — Flight Operations Planning Schedule
• TRK — Track
• FEDB — Flight Execution Data Base
• LSTE — Launch Site Transportation Equipment
• CCE — Computer Command Engineer
• BMDSCOM — Ballistic Missile Defense Systems Command
• HBW — Hot Bridge Wire
• AMW — Angular Momentum Wheel
• BSTS — Boost Surveillance Tracking System
• APD — Area Passive Dosimeter
• HSE — Heat Shield Entry
• BCD — Baseline Concept Definition
• KTF — Kauai Test Facility
• MSO — Mission Support Officer
• AISD — Autonetics ICBM Systems Division
• HGCDTE — Mercury-Cadmium-Telluride
• BUOU — Backup Optical Unit
• ACC — Aft Cargo Compartment
• ARAP — Astronaut Rescue Air Pack
• ARC — aggregation of red blood cells
• C/A — code standard positioning service
• CWBS — Contract Work Breakdown Structure
• ALB — Acceptance Log Book
• FOSO — Flight Operations Scheduling Officer
• APTI — Actions Per Time Interval
• LDC — Lot Date Code
• BSGE — Bachelor of Science degree in general engineering
• BFL — Back Focal Length
• CX — Constellation
• BCU — Battery Control Unit
• EBL — Eyeballs Left ( GY)
• MLGD — Main Landing Gear Door
• AFPC — Air Force Program Control
• DS&R — Data Storage and Retrieval
• ASCE — Airlock Signal Conditioning Electronics
• CDQ — certificate of qualification
• ETPY — electronic control assembly thrust vector pitch and yaw
• ADA — Azimuth Drive Assembly

• AERO — Aeroballistics
• DTCW — Data Transfer Command Word
• ALCA — automatic level-control assembly
• EUROCOMSAT — European consortium communications satellite
• ATC/FTD — Air Training Command/Field Training Detachment
• MITIL — MIT Instrumentation Laboratory
• CCSR — Carbon-Carbon Survivable Radiator
• BDD — Baseline Definition Document
• FPH — Flight Procedures Handbook
• C/S — Cost/Schedule
• DRI — Data Rate Indicator
• AKA — Active Keel Actuator
• EGORD — Experiment Ground Operations Requirements Document
• AFBMD — Air Force Ballistic Missile Division
• FPSR — Flight Planning and Stowage Review
• CMV — Common Mode Voltage
• DAE — Data Acquisition Equipment
• AFSCF — Air Force Space Command Facility
• MEE — Mission-Essential Equipment
• FMA — Failure Mode Analysis
• IPTR — in-process technical review
• FCDR — Final Critical Design Review
• JSCM — JSC Manual
• ERRP — Equipment Replacement and Refurbishment Plan
• LLPO — Launch and Landing Project Office
• EMK — Emergency Medical Kit
• CM&S — Communications Maintenance and Storage
• ALSS — Airlock Support System
• HEO — High Earth Orbit
• BSI — Basic Shipping Instruction
• C/O — Contamination/Overpressure
• AAS — Advanced Antenna System
• DRRD — Design Requirements Review Disposition
• I&Q — in phase and quadrature
• CC — Cluster Controller
• MSFP — Manned Space Flight Program
• BSA — bus status/alternate bus table
• AOP — Assembly Operations Plan
• ARD — Abort Region Determinator
• CCE — Continuous Control Evaluator
• EPDS — Electrical Power Distribution System
• DK — Display Keyboard
• ARIES — Astronomical Radio Interferometric Earth Surveying
• LRCA — Long-Range Combat Aircraft
• FPU — floating-point unit
• DCL — Document Change List
• AMBD — automated maintenance data base
• BIC — Bus Interface Controller
• JPOC — JSC Payload Operations Center
• DDDS — Digital Data Distribution System

• AB — Airborne Brigade's
• SRB — Solid Rocket Boosters
• FSD&P — flight systems design and performance
• CRISP — Computer Resources Integrated Support Plan
• BAIR — Breathing Air
• AIST — Abbreviated Integration System Test
• F-F — face-to-face
• NHB — NASA Handbook
• AFFTC/RPL — Air Force Flight Test Center/Rocket Propulsion
• DPD — Data Procurement Document
• APES — Advanced Processor Emulator System
• ASC — Airlock Support Component
• CSCSAT — Commercial Synchronous Communication Satellite
• HYPACE — Hybrid Programmable Attitude Control Electronics
• AICC — Action Item Control Card
• FLPS — Flight Load Planning System
• LEC — Lockheed Electronics Company
• ELB — Electrical Load Bank
• HPBW — half-power beam width
• DD&CS — Dedicated Display and Control Subsystem
• ACTA — Activate Test Article
• HEL — High-Energy Laser (US)
• CU — Configuration Unit
• AC — Atmospheric Corrector
• CDC — Countdown Clock
• AFRSI — Advanced Flexible Reusable Surface Insulation
• EPD&C — Electrical Power Distribution and Control
• CCC — Central Computer Complex
• ACDNS — attitude control, determination, and navigation
• ACS — Automated Control System
• CCF — Central Computer Facility
• FCITE — FCI time element
• FSAA — Flight Simulator for Advanced Aircraft
• CC — Channel Controller
• D/VD — Data/Voice Data
• CDBFR — Common Data Buffer
• ARMS — Automated Requirements Management System
• C/A — Coarse Acquisition
• FSIWG — Flight System Interface Working Group
• FMP — Facility Management Plan
• AFSCS — Air Force Satellite Communications System
• LHA — Local Hour Angle
• GAEC — Grumman Aircraft Engineering Corporation
• ASCS — Atmospheric Storage and Control Section
• LPIF — Launch Package Integration Facility
• C-C — center-to-center
• AMMM — Autonomous Magnetic Momentum Management
• FQF — First Qualification Flight
• ACC — Auxiliary Crew Compartment
• DEDA — Data Entry and Display Assembly

• GME — Gimbal Module Electronics
• FVF — First Vertical Flight
• ARP — As-Run Procedure
• GAPL — Group Assembly Parts List
• BPO — Blanket Purchase Order
• EDPC — Electronic Data Processing Center
• CDPIS — Command Data Processing and Instrumentation System
• AMRF — Automated Manufacturing Research Facility
• ASVIB — algorithm scoreboard vibrations
• BUSHIPS — Bureau of Ships, Washington, DC
• ABMO — Antiballistic Missile Office
• CAR — Corrective Action Report
• ITVE — Integrated Technology Validation Experiment
• ADP — Acceptance Documentation Package
• C&C — communication and control
• DU — Display Unit
• ATO — Automatic Turn-On
• AR — Atmospheric Revitalization
• DAFT — Data Acquisition Frequency Table
• GTF — Ground Test Facility
• D&P — Drain and Purge
• DPAS — Defense Priorities and Allocation System
• DBUR — Data Bank Update Request
• ILSMT — Integrated Logistics Support Management Team
• AMCC — ADL Master Control Console
• ARTSE — Ada run-time support environment
• ALFT — Approach and Landing Flight Test
• ESG — Executive Steering Group
• ATP-FC — acquisition, tracking, and pointing fire control
• AN — Alphanumeric
• APUS — Auxiliary Power Unit Subsystem
• KHIT — KKV hovering interceptor test
• CCDR — Contractor Critical Design Review
• AFSSD — Air Force Space Systems Division
• MSFN — Manned Space Flight Network
• ARN — Additional Reference Number
• AOT — Alignment Optical Telescope
• ACO — acceptance checkout
• ATDF — Automated Test Development Folder
• BNS — Bomb Navigation System
• ADAES — advanced data assessment expert system
• LISA — Laser Inferometer Space Antenna
• DAPS — Decommutation And Processing System
• M50 — Aries mean of 1950, Cartesian coordinates
• ASCOP — Applied Science Corporation of Princeton
• EHOT — external hydrogen/oxygen tank
• C&P — Contracts and Pricing
• HCP — Hydraulic Circulation Pump
• AOD — Analog Output Differential
• IPAD — Integrated Program For Aerospace Vehicle Design

• CPFF/IF — cost plus fixed fee/incentive fee
• ARTS — Advanced Remote Tracking Station
• G-A — Ground to Air
• AIOD — Ascent Insertion On-Orbit Deorbit
• AVRCS — attitude, velocity, reaction control system
• AFWSG — Air Force Weapons System Group
• ARTS — Automated Retrieval and Tracking System
• BSR — Bite Status Register
• AF/IN — Air Force/Intelligence
• DBE — Data Bus Element
• APK — accelerometer package
• POLAR — Polar Plasma Laboratory
• ALERT — Acute Launch Emergency Reliability Tip
• AMAL — Aviation Medical Acceleration Laboratory
• ABJIT — algorithm beam jitter
• AFEB — Award Fee Evaluation Board
• AGE — air/ground equipment
• L-L — Line-to-Line
• MIEWF — master integrated engineering work file
• SR — Service Request
• LMIF — Lower Mechanical Integration Frame
• AZEL — azimuth and elevation
• APDL — Ada programming design language
• LAM — Liquid Apogee Motor
• ACT — Acquisition Coarse Tracker
• GIRD — Ground Integration Requirements Document
• ARTS — Automated Restricted Tracking System
• LASV — low-altitude supersonic vehicle
• CRERS — crew rescue and equipment retrieval system
• ALCA — Aft Load Controller Assembly
• FOMR — Flight Operations Management Room
• CDH — Constant Delta Height
• GPIO — general-purpose input and output
• IDU — Interface Demonstration Unit
• APC — Adaptive Payload Carrier
• SDO — Solar Dynamics Observatory
• MSBLS — microwave scan-beam landing system
• ANI — Authorized, Not Implemented
• EP — Equivalent Person
• AHCS — Advanced Helicopter Control System
• FOWG — Flight Operations Working Group
• AWACS — Advanced Warning and Control System
• AFESD — Air Force Electronic Systems Division
• FACR — first-article configuration review
• ELC — Earth Limb Clutter
• ATVCD — Ascent Thrust Vector Control Driver
• ADB — auxiliary memory data output bus
• DPM — Deputy Program Manager
• HILS — hardware-in-the-loop simulation
• IAA — International Aerospace Abstracts

• C&DP — control and data processor
• HERT — Headquarters Emergency Relocation Team
• C&T — Communication and Tracking
• IV&V — Independent Validation and Verification
• BPT — Body Point
• GL — Government Leased
• GDP — Generalized Documentation Processor
• PSS — Portable Spacecraft Simulator
• BAC — Budget At Completion
• FLR — Flight Log Recorder
• ARN — action and reply notice
• ER — Eastern Range
• MML — master measurement list
• GTLV — government-furnished target launch vehicle
• ARMA — Accumulator-Reservoir Manifold Assembly
• APSE — Ada programming support environment
• COQ — Certificate Of Qualification
• BTR — Bus Transfer
• C&C — command and control (also C2)
• DABS — Discrete Address Beacon System
• NSC — Network Systems Corporation
• HIGED — Handbook of Instructions for Ground Equipment Designers
• MPVA — Main Propellant Valve Actuator
• AOL — Area Of Launch
• ER — Equipment Room
• EAI — Electronics Associates, Incorporated
• ALSYM — ALS model
• KBAC — Kennedy Booster Assembly Contractor
• ADS — Angular Displacement Sensor
• AESOP — an easy system of programming
• HANE — High-Altitude Nuclear Explosion
• AID — Audit Item Disposition
• ARS — Atmospheric Revitalization System
• EFCS — Earth-fixed coordinate system
• AP — Accelerometer Package
• C&TS — Communications and Tracking System
• AFPM — Air Force program manager
• ASRS — Automated Shuttle Requirement System
• ASSO — Assistant System Security Officer
• GDCA — General Dynamics Convair Aircraft
• C&D — controls and displays
• AFATL — Air Force Armaments Test Laboratory
• BOC — blowout coil
• CCP — Contract Change Proposal
• LPI — Low Probability of Intercept
• CRAS — Cost Reduction Alternative Study
• CSIT — CAP System Integration Test
• ESU — Eyepiece Storage Unit
• FACS — Finance and Control System
• FTOH — Flight Test Operations Handbook

• KDD — Knowledge Discovery and Data Mining
• ILAS — Instrument Landing Approach System
• HVI — High-Velocity Impact
• ATTS — Automatic Telemetry Tracking System
• ACF — American Car and Foundry
• AFSCF — Air Force Systems Command Facility
• AI — Altimeter Indicator
• AI — altitude indicator
• AUASAM — Automatic Aimpoint Selection And Maintenance
• C/SCSC — cost and schedule control system criteria
• ETL — Environmental Test Laboratory
• CCD — Checkout Command Decoder
• IRANSAT — Iranian Government Communications Satellite
• CITS — Central Integrated Test System
• EADS — engineering analysis and data systems
• FEAT — Final Engineering Acceptance Test
• GDSM — Ground Data Systems Manager
• ADT — Air Data Transfer
• SEF — Sustaining Engineering Facility
• KKV — Kinetic Kill Vehicle
• FPRV — flight product requirements verification
• CARB — Central Acquisition Review Board
• BDY — burst detector optical sensor
• MER — Mission Evaluation Room
• AMPD — Applied Materials Physics Division
• CELSS — Controlled Ecological Life Support System
• CPSD — cross-power spectral density
• B/M — bench maintenance
• GBSS — Ground-Based Surveillance System
• ASCS — Atmosphere Storage and Control Subsystem
• GSVP — Ground Support Verification Plan
• IFU — Interface Unit
• CMRB — Contractor Material Review Board
• JOR — Job Order Request
• INR — Inertial Reference
• ABC — Ada browse capability
• CDB — Computer Data Bus
• ESV — Emergency Shutoff Valve
• CASO — Cancellation Addendum Sales Order
• L&C — Laboratory And Checkout
• ACD — Accuracy Control Document
• ARIS — ALS Requirements Information System
• ATTACK — advanced threat technology attack coordination and
• DBRN — Data Bank Release Notice
• ABS — air-break switch
• ADP — Architecture Decision Point
• ATIS — Automatic Terminal Information System
• AOCRD — acceptance and operational checkout requirements
• ADS — Advisory and Directive System
• CADS — Command and Data Simulator

• ICG — In-Flight Coverall Garment
• DOC — Data Operations Control
• EVDE — external visual display equipment
• APS — Aft Propulsion System
• CCMS — checkout, control, and monitor subsystem
• AVE — Atmospheric Variability Experiment
• BU&C/O — buildup and checkout
• APP — Advance Procurement Package
• DCIU — Digital Control and Interface Unit
• IACS — Inertial Attitude Control System
• CDF — Combined Data File
• CICC — Cargo Integration Control Center
• FIV — Fuel Isolation Valve
• MFCS — Manual Flight Control System
• LARSSYAA — Laboratory for Application of Remote Sensing Aircraft Analysis
• ERRC — expendability, recoverability, and repair capability
• BTC — Bus Tie Contractor
• CAPSS — Computer-Aided Planning and Scheduling System
• DBP — Design Baseline Program
• ARPCS — Atmospheric Revitalization Pressure Control System
• GPD — Gimbal Position Display
• EHA — electrohydraulic actuator
• ATPA — Alpha Temperature Probe Assembly
• AFSTC — Air Force Space Technology Command
• CUT — Coordinated Universal Time
• WMAP — Wilkinson Microwave Anisotropy Probe
• LACI — Laser Autostigmatic Cube Interferometer
• ASSD — Autonetics Strategic Systems Division
• APPF — Automated Payload Processing Facility
• AJCS — Automated Job Card System
• FCU — Fluid Checkout Unit
• HF/DF — Hydrogen Fluoride/Deuterium Fluoride
• LOSP — Landing Operations Support Panel
• IUCS — Instrumentation Update Command System
• AGOES — Advanced Geosynchronous Observation Environment Satellite
• CAS — Column Address Strobe
• DSARC — Defense System Acquisition Review Committee
• AF/DBS — areal fluid data base system
• IFTM — in-flight test and maintenance
• HICAMP — Highly Calibrated Airborne Measurements Program
• EVD — External Visual Display
• IBT — International Brotherhood of Teamsters
• CNRL — Communications and Navigation Research Laboratory
• PPS — Precise Positioning System
• APN — ACE Problem Notice
• EVC — extravehicular communications
• CL — Confidence Level
• IFOT — In-Flight Operations And Training
• VC — Viet Cong
• ALCOA — Aluminum Corporation Of America

• ASF — Atmospheric Science Facility
• FMOFEV — First Manned Orbital Flight With EVA
• AFM — Arm/Firing Mechanism
• HFT — Horizontal Flight Test
• ACE — Automatic Checkout Equipment
• B/O — Breakout
• FCMU — foot-controlled maneuvering unit
• DIPS — Dynamic Isotope Power System
• HEMIL — hardware evaluator, man in loop
• AOFEE — advanced orbiter flight evaluation experiment
• G/A — ground to air
• ABTCU — active baseplate thermal control unit
• L/O — Lift-off
• AMSC — advanced military space flight capability
• EIT — Entry Interface Time
• HAK — Horizontal Access Kit
• AIP — Avionics Integration Plan
• AEOP — Adaptive Electro-Optical Processor
• AFAD — Armed Forces Acquisition Document
• AC — Auxiliary Computer
• APA — Antenna Pointing Assembly
• CCAS — Contractor Cost Accrual System
• BOP — Baseline Operations Plan
• ASB — Airlock Stowage Bag
• CAA — Cost Account Authorization
• AFT — Active Fine Tracker
• DRA — Document Release Authorization
• CSAT — Combined Systems Acceptance Test
• B/L — Baseline
• AMDS — Advanced Missions Docking System
• AAP — analog autopilot
• ASFTS — auxiliary system function test stand
• AFS — Air Force Standard
• APO — Automated Purchase Order
• ASTB — AGN&C Simulation Test Bed
• H/E — Heat Exchanger
• CWEA — Caution and Warning Electronic Assembly
• CDN — CDR Discrepancy Notice
• DLH — Direct Labor Hour
• GADG — Gravity or Acceleration Due to Gravity
• AFTP — Air Force test procedure
• H/C — head count
• H&K — Homing and Kill
• FCPS — Fuel Cell Power System (Subsystem)
• AMC — Air Material Command
• AP — air pressure
• GSIF — Ground Station Interface Facility
• AC — Application Controller
• ARAP — Aeronautical Research Associates of Princeton
• BP — Back Pressure

• LSSRC — Life Sciences Shuttle Research Centrifuge
• EURECA — European Retrievable Carrier
• ATPG — Automatic Test Program Generator
• AWG — Activation Working Group
• WP — Working Party
• AMTAS — automatic modal tuning and analysis system
• C/W — caution and warning
• EDB — Environmental Data Book
• ATC — Active Thermal Control
• BCD — Budget Change Document
• CUB — Commonality Usage Board
• AT — Action Time
• BD — Binary Digit
• ASST — American Society for Steel Treating
• USN — United Space Network
• ADPSSM — ADP system security monitor
• CBA — C-Band Transponder Antenna
• DPDS — Distributed Processing Design System
• DA — Data Administrator
• ADABECS — airborne demonstration advanced beam extraction am
• ACD — Anti-Carryover Device
• ICBC — Imax Cargo Bay Camera
• FTS — Federal Telephone System
• LCH4 — liquid methane
• FMD&C — flight mechanics, dynamics, and control
• FPR — Federal Procurement Regulation
• GIDS — General-purpose Interactive Display System
• MBE — Minority Business Enterprise
• AMR — Area-to-Mass Ratio
• CWS — Caution and Warning System
• DCASMA — Defense Contract Administration Services Management Area
• CCL — Critical Characteristics List
• DAS — Data Archive System
• SR — Support Requirements
• MBFP — Manufacturing Build and Flow Plan
• PCD — Process Control Document  
• HFCT — Hydraulic Flight Control Test
• AMC — Aft Motor Controller
• CCME — Contract Change Mass Estimate
• HAARS — High-Altitude Attitude Reference System
• ASSH — Advanced Space Systems Hardening
• CWFSP — Caution and Warning/Fire Suppression Panel
• APSS — Atmospheric Pressure Supply Subsystem
• AD — Air Density
• EIU — Engine Interface Unit
• AGCU — air/ground cooling unit
• ACT — acquisition, control, and test
• ATS — Automatic Terminal System
• AMPM — Agency Mission Planning Model
• DBG — Data Bus Group

• CAP — Control Account Plan
• EAL — equipment airlock
• FM/CW — frequency-modulated continuous wave
• ELN — Digital Equipment Corporation's real-time operating sn
• CML — Commands and Measurement List
• BCE — Bus Control Element
• ASFT — Abbreviated System Functional Test
• AC — Advanced Composite
• AMX — AM Transmitter-Receiver
• ADPA — Air Data Probe Assembly
• FSSE — Flight Sensor Stimuli Equipment
• KPRD — KSC Program Requirements Document
• BAS — Breathing Air System
• EPGCS — electrical power generation and control subsystem
• CAAT — Computer-Aided Assembly Tool
• BP — Boilerplate
• ATA — Assembly Test Article
• FSY — Factor of Safety Yield
• GR/EP — graphite-epoxy
• BDA — Bermuda [Kindley Field], Bermuda
• AFSIE — Air Force standard items and equipment
• DLAT — Destructive Lot Acceptance Testing
• CDB — Central Data Buffer
• ACN — Acceptance Change Notice
• RID — Review Item Disposition
• GFS — Government-Furnished Software
• AISTR — advanced interferometric system technology requirement
• BCRD — Basic Consolidated Requirements Document
• APPLE — advanced propulsion payload effect
• GTE — General Telephone and Electronics
• AMI — Apogee Memory Image
• HEDI — High Endoatmospheric Defense Interceptor
• FAE — Final Approach Equipment
• BCD — Baseline Configuration Document
• AOPM — Airline Operations Planning Model
• BATSE — Burst and Transient Source Experiment
• LLO — Low Lunar Orbit
• ALASS — Alternate Low-Altitude Surveillance System
• HFTS — Horizontal Flight Test Simulator
• BMDATC — Ballistic Missile Defense Advanced Technology Center
• CSSE — Control System Simulation Equipment
• ESMD — Exploration Systems Mission Directorate
• ATS — Administrative Telephone System
• PRD — Program Requirements Documents (UDS)
• EXH — Exchange Hardware
• EDSC — Early Deployment System Concept
• EBC — Emulated Buffer Computer
• BV — Boost Vehicle
• COGMAN — center of gravity of payload manifest
• FSLP — First Spacelab Payload

• CSDM — Computer System Diagnostic Manual
• HPT — high-pressure test
• EGF — Electrical Grapple Fixture
• IT&V — Integrated Test and Verification
• ATM — Apollo Telescope Mount (on Skylab)
• C&D — communication and data
• CD&SC — Central Distribution and Switching Center
• CSDF — Central Source Data File
• CCIM — Command Computer Input Multiplexer
• ADCOM — air defense command
• CCT — computer-compatible tape
• COTS — Commercial Orbital Transportation System
• FLSC — flexible linear-shaped charge
• AMPM — Agency Planning Manifeset
• LRO — Lunar Reconnaissance Orbiter
• CDQR — Critical Design and Qualification Review
• BTE — Bench Test Equipment
• CCSD — Chrysler Corporation Space Division
• ASLU — Antenna Select Logic Unit
• AFWAL/ML — Air Force Wright Aeronautical Lals Laboratory
• DPT — Design Proof Test
• ILMF — intermediate-level maintenance facility
• BCLS — Base Cardiac Life Support
• AFP888 — designation for P80-1 spacecraft
• AB — Airborne Battlefield
• APIF — Automated Process Information File
• ALSEMP — ALS Engineering Management Plan
• EHC — Electrical Heating Control
• MDU — mission data unit
• AMS — actuation mechanism subsystem
• INDAT — incoming data
• BACS — Body Axis Coordinate System
• EVAS — Extravehicular Activity System
• ALERT — Acute Launch Emergency Restraint Tip
• KU — Keyboard Unit
• EPDU — Electrical Power Distribution Unit
• IMF — Inventory Master File
• IDMRS — intermediate depot maintenance requirements
• COMM — Communications Module
• ILRV — Integral Launch and Reentry Vehicle
• EVSU — Extravehicular Space Unit
• FPDE — Focal Plane Drive Electronics
• CEU — control electronics unit
• APS — Attitude Propulsion System
• AES — Advanced Electrical Schematic
• EPY — electronic control assembly pitch and yaw
• CWEU — Caution and Warning Electronics Unit
• AVT — Acceptance Vibration Testing
• DTMO — Development, Test, and Mission Operations
• ARRS — air recovery and rescue service

• HFTF — Horizontal Flight Test Facility
• AO — Acoustic-Optical
• EVCU — Extravehicular Communications Umbilical
• IMU — Inertial Measurement Unit
• APT — Astronaut Preference Test
• GSEL — Ground Support Equipment List
• ICDS — Interface Control Document Schedule
• FPB — Fuel Preburner
• ATS — Automatic Test Set
• HX — Heat Exchanger
• ANC — Air Force-Navy-civil
• BRAVO — Business Risk and Value of Operation in Space
• CSO — Complex Safety Office
• BSRM — Booster Solid Rocket Motor
• APUT — Auxiliary Power Unit Test
• FPPR — Fixed Price with Price Revision
• GSBCA — General Services Board of Contract Appeals
• FOG — Fiber-Optic Gyro
• IMAS — Institutional Management Accounting System
• AL-LI — aluminum lithium
• ADS — Attitude Determination Subsystem
• FSRS — Flight System Recording System
• ASPS — annular suspension and pointing system
• GATE — Generic Automatic Test Equipment
• ATG — automated time line generator
• AMSD — Autonetics Marine Systems Division
• AI — Anti-Icing
• GSP-R — guidance signal processor-repeater
• HTO — Horizontal Takeoff
• F&D — Fill and Drain
• ASDTIC — analog-signal-to-discrete-time-interval converter
• GETL — Ground Elapsed Time of Landing
• GFERD — government-furnished equipment requirement description
• PD — Program Directive
• ANC — Active Nutation Control
• EDPM — Electronic Data Processing Machine
• ACC — advanced carbon-carbon
• CMS — Command Management System
• EDS — Edit and Decommutation System
• DSPM — designated subsystem project manager
• OSO — Office of Space Operations
• ATOLL — Acceptance Test of Launch Language
• MLF — MDM Launch Forward
• BA — Bank Angle
• CFI — Card Format Identifier
• GPAS — general-purpose airborne simulator
• AFSLV — Air Force space launch vehicle
• DF/CMB — data formatter and command monitor bus
• COBE — Cosmic Microwave Background Explorer
• BMAS — Body-Mounted Accelerometer System

• LSP — Least Significant Portion
• NM — New Millennium
• CDOM — Chief Draftsman Office Memorandum
• ASA — Abort Sensor Assembly
• HSCS — High-Speed Communications Subsystem
• DTCS — Digital Test Command System
• AMEU — Alpha/Mach Indicator Electronic Unit
• MFBP — Manufacturing Flow And Build Plan
• FOPSS — flight operation product scheduling system
• G/T — Gain to Noise Temperature Ratio
• APR — Advance Parts Release
• CMDS — Configuration Management Data System
• ARS — ALS Release System
• FUO — Follow-up Output
• DSMC — Data Services Management Complex
• DDPS — Digital Data Processing System
• AFEV — Air Force experiment vehicle
• ASE — Automatic Support Equipment
• AP — atmospheric and space physics
• ASI — Amended Shipping Instructions
• CCF — Converter Compressor Facility
• GEOSEPS — Geosynchronous Solar Electric Propulsion Stage
• CVF — Circular Variable Filter
• DRAT — Data Requirements Analysis Tool
• CCFF — Cape Canaveral Forecast Facility
• DCAR — Design Corrective Action Report
• CDG — Concept Development Group
• HSL — Hardware Simulation Laboratory
• BITS — Budget Impact Tracking System
• DUA — Digital Uplink Assembly
• C/SC — cost/schedule control
• SNR — Signal Noise Ratio
• APPS — Auxiliary Payload Power System
• ATS — Assembly Trusses and Structure
• EPDC — Electrical Power Distribution and Control
• GDSD — Ground Data Systems Division
• AVREL — availability and reliability program
• IGN&C — integrated guidance, navigation, and control
• DD&RR — Data Display and Review Room
• IOCU — Input/Output Control Unit
• GOSS — Ground Operational Support System
• E/W — energy-to-weight ratio
• DER — Drawing Error Report
• ASTIA — Armed Services Technical Information Agency
• EOQ — End of Quarter
• GN&C — Guidance, Navigation, and Control
• BM/C3 — battle management and command, control, and
• AMTD — Automatic Magnetic Tape Dissemination
• DDCS — Data Distribution and Command System
• BB — Breadboard

• AS/CP — attitude set/control panel
• CYI — Canary Islands
• LFA — logistics/functional analysis
• COMM — Communications Society
• EOSH — Electro-Optical Sensor Hardening
• CTPD — Crew Training and Procedures Division
• NCO — National Coordination Office
• CETF — Critical Evaluation Task Force
• APS — Auxiliary Propulsion System
• ASP — Acquisition Strategy Planning
• ATS — Analog Tone Signal
• APGC — Air Proving Ground Command
• IFRU — In-Flight Replaceable Unit
• B&P — Budgetary and Planning
• CC — Crew Certified (NASA)
• JIC — Job Instruction Card
• CDUM — coupling display unit IMU
• MIDDS — Meteorological Interactive Data Display System
• ALCOM — Algorithm Line-Of-Sight Comparison
• PIN — Product Identification Number
• HDC — Hasselblad Data Camera
• ACV — air-cushion vehicle
• DIS — Data Inventory Service
• DPCS — Distributed Process Construction System
• ALC — Aft Load Controller
• DCIB — Data Communication Input Buffer
• ATRS — Automated Training Records System
• BDW — burst detector EMP sensor
• DDPF — Dedicated Display Processing Function
• IHP — Indicated Horsepower
• C/R — Commutation Rate
• EDPE — Electronic Data Processing Equipment
• ASRS — Automated Support Requirements System
• C/D — Countdown
• DBI — Data Base Interface
• CBV — Cabin Bleed Valve
• CWT — Code Walk-Through
• ESS — Engineering Support System
• CAU — Customer Acquisition Unit
• CDF — Circuit Design Fabrication
• IOM — Input/Output Module
• FCSS — Fuel Cell Servicing System
• AWI — Accommodation Weight Investigation
• AVE — Automatic Volume Expansion
• AOES — Advanced Orbit Ephemeris System
• CITE — cargo integration test equipment
• CCCD — Crew Compartment Configuration Drawing
• BTU — Bus Terminal Unit
• ASAP — Advanced Sensor Analysis Program
• LAIRT — Large-Aperture Infrared Telescope

• LAC — Lockheed Aircraft Corporation
• ARGMA — Army Rocket and Guided Missile Agency
• ICAM — integrated computer-aided manufacturing
• F&A — Fabrication and Assembly
• CADSI — Communication and Data Systems Integration
• BAC — Buffer Access Card
• ASO — Administrator Staff Office
• CCM — Crew/Cargo Module
• MPICD — mission-peculiar interface control document
• DIGIKON — digital control analysis software
• PSM — Procurement Strategy Meeting
• CBA — Collective Bargaining Agreement
• ADS — Ascent Design System
• APIRL — authorized procurement information requirements list
• HCRB — Hardware Configuration Review Board
• CAIB — Columbia Accident Investigation Board
• CAS — Command Augmentation System
• AOSP — Advanced On-Board Signal Processor
• DLR — Deutschen Zentrum fur Luft und Raumfahrt
• AFP — Ariane-Furnished Property
• CADS — Computer-Aided Design System
• GSERD — Ground Support Equipment Recommendation Data
• ADA — Adaptive Diagnostic Authoring
• DHE — Data Handling Equipment
• LS/ST — Light Shield/Star Tracker
• CRSI — Ceramic Reusable Surface Insulation
• ANA — Air Force-Navy aeronautical bulletin
• DCEP — Data Collection and Evaluation Plan
• ALIO — Activity-Level-Independent Operation
• FSSS — Future Strategic Systems Study
• AIS — Airlock Illumination Subassembly
• AMLC — asynchronous multiline controller
• AL — Autoland
• BLV — Bleed Valve
• DCF — Data Control Facility
• AETB — alumina-enhanced thermal barrier
• ATOP — ADA Technology Operational Planning
• DEOSS — Demonstration of Electro-Optical Surveillance Sensor
• IAV — Inventory Adjustment Voucher
• TOTS — Transportable Orbital Tracking System
• DPCL — dedicated payload communication link
• MACRO — Merge and Correlate Recorded Output
• CCSR — Crew Compartment Stowage Review
• ALSGEM — ALS global evaluation module
• ATDP — Acceptance Test Data Package
• ARTOOS — Advanced Radiation Technology Office optical support
• AMS — Attached Manipulator System
• ICRB — Interface Change Review Board
• CGP — Central Grounding Point
• CC — Closing Coil

• PAD — Packet Assembler and Disassembler
• COLA — cost-of-living adjustment/allowance
• AES — Atmosphere Exchange System
• AS&ASD — Autonetics Sensors and Aircraft Systems Division
• BB — Baseband signal
• FLTSATCOM — fleet satellite communications
• BFC — Body Flap Control
• AT — Access Tower
• BPSK — Binary Phase Shift Key
• ATT — acceptance thermal testing
• CBSA — Cargo Bay Stowage Assembly
• DTU — Development Test Unit
• CARR — Customer Acceptance Readiness Review
• CARID — Customer Acceptance Review Item Disposition
• LASERCOM — laser communications payload
• DESHE — distributed expert system hosting environment
• BTR — Burn Time Remaining
• FMEC — Forward Master Events Controller
• CCATS — command communications and telemetry system
• BSR — Basic System Release
• JRB — Joint Review Board
• CYC — cyclic mission-unique process
• AVSM — Auxiliary Video Switch Matrix
• CGC — Command Guidance Computer
• K-IUSN — KSC IUS Notice
• EGRET — Energetic Gamma Ray Explorer Telescope
• DPG — dual-purpose gyro
• GMCL — Ground Measurements Command List
• DR&A — Data Requirements and Analysis
• D&C — displays and controls
• DETA — Diethylene Triamine
• CDC — Confined Detonating Cord
• CCP — Commercial Change Proposal
• ESSP — Earth System Science Pathfinder
• BILBO — built-in logic block observer
• AMS — Antenna Management System
• GEA — Gimbal Electronics Assembly
• LEFM — Linear Elasticity Fracture Mechanics
• FAME — Formatting And Multiplexing Equipment
• BDCR — Baseline Document Change Request
• ASPR — armed service procurement regulation
• INSB — Indium Antimonide
• FPE — Functional Program Element
• CMACS — Central Monitor and Control System
• CUC — Computer Usage Control
• D/D — digital-digital converter
• BRM — Biological Research Module
• DRK — Display Request Keyboard
• IDMM — Intermediate and Depot Maintenance Manual
• CCRF — Consolidated Communication Recording Facility

• AMDCS — assurance management document control system
• COSTA — Cost Accounting (Code)
• DDCS — Document and Data Control System
• ATM — Ascent Trajectory Model
• BSW — BFS software
• CDR — Conceptual Design Review
• AMF — apogee memory image
• DDMS — DOD manager for Space Shuttle support
• COSPAC — cost/schedule planning and control
• LVLH — local vertical/local horizontal
• APS — Automatic Processing System
• AMPTE — Active Magnetospheric Particle Tracer Explorer
• GDBS — Generalized Data Base System
• CTRS — Component Test Requirements Specifications
• GGVM — gas generator valve module
• DECA — display/AGAP electronic control assembly
• ECAS — Experiment Computer Application Software
• DAF — Data Archive Facility
• CDM — Communications Data Manager
• FCW — Format Control Words
• ACE — Array Combining Experiment
• BEST — Booster Exhaust Study Test (NASA)
• BF — Body Flap
• SIP — Summer Internship Program
• FACI — first-article configuration inspection
• ASC — auxiliary switch normally closed
• ATS — Atlantic Tracking Station
• AMT — Auxiliary Master Tape
• ETV — Electrical Test Vehicle
• MBK — Medications and Bandage Kit
• AUCV — Advanced Unmanned Cargo Vehicle
• CDAS — Core Design Analysis Simulation
• C&DS — Command and Data Simulator
• CEPS — CITS Expert Parameter System
• EFSSS — Engine Failure Sensing and Shutdown System
• FND — Facility Need Date
• AN — Army-Navy
• APC — Airborne Particle Counter
• APT — Airborne Pointer Tracker
• FRDI — Flight Research and Development Instrumentation
• BIBIB — back-illuminated blocked impurity band
• ATPSE — acquisition, tracking, and pointing system emulator
• SEF — System Engineering Facility
• DAAT — Distributed Architecture Analysis Tool
• FIS — Facility Interface Sheet
• CAS-YR — CAS yaw roll control mode
• BSM — Booster Separation Motor
• FSPL — free-space-path loss
• DARCOM — U.S. Army Material Development and Readiness Command
• MDSD — mate/demate stiff-leg derrick

• BCE — Backup Control Electronics
• DCO — Detailed Checkout
• MLI — Multilayer Insulation
• AMF — Abort Motor Facility
• DCMB — Development Configuration Management Board
• IISS — Integrated Information Support System
• ECF — Equivalency Capability File
• D/C — displays and controls
• BCI — Baseline Configuration Identification
• BCO — booster cutoff
• CASR — cost and schedule reporting system
• BOSO — Ballistic Orbital Support Operations
• E/P — electron/proton
• GFD — Government-Furnished Data
• CDP — Command Data Processor
• COB — Communications Office Building
• MFG — Major Functional Group
• DRG — Digital Ranging Generator
• EVLSS — Extravehicular Life Support System
• CMRP — Configuration Management Requirements Plan
• MAR — Multiple Access Return
• CLIP — Combined Laser Instrumentation Package
• HCS — high-carbon steel
• ASGPD — attitude set and gimbal position display
• OCR — Operations Control Room
• MSCL — Measurement Standards and Calibration Laboratory
• GPVS — General-Purpose Visual Simulator
• APS — Ascent Propulsion System
• APTE — Automated Production Test Equipment
• C&M — control and monitoring
• ALOSA — algorithm line-of-sight angle
• FA/COSI — final assembly closeout systems installation
• IDMS — information and data management system
• EGC — Experiment Ground Computer
• FMK — Field Modification Kit
• DOVAP — Doppler Velocity and Position
• BM — Business Manager
• KSA — Ku-band Single Access
• FMDM — flexible multiplexer/demultiplexer
• CCVA — Chamber Coolant Valve Actuator
• AC — Assembly Complete
• LSU — Life Support Umbilical
• AOIS — Automatic Optical Inspection System
• INTF — Interim National Test Facility
• ILSA — Integrated Logistics Support Analysis
• CDSL — Computer Data System Laboratory
• HCR — High Cross Range
• KUSP — Ku-Band Signal Processor
• SAC — Senate Appropriations Committee
• ASTP — Apollo-Soyuz Test Project

• CCR — Control Center Rack
• APLIS — automated payload ICD system
• DES — Data Enhancement System
• AL — airlock
• ATC — Ablative Thrust Control
• DBFN — Data Bus File Number
• BIA — Booster Insertion and Abort
• CCS — Command and Communication System
• LCOM — Logic Control OutPut Module
• CETA — Crew and Equipment Translation Aid
• EPDCS — Electrical Power Distribution and Control System
• EPG — Electrical Power Generator
• EBCDC — extended binary-coded decimal
• CECP — Compatibility Engineering Change Proposal
• CCHS — Crew Compartment Heat Shield
• CRW — Control Read/Write
• BKNO3 — boron-potassium nitrate
• CIMS — Consolidated Information Management System
• CGAU — Cabin Gas Analysis Unit
• G-G — ground to ground
• APWL — Automatically Processed Wire List
• DDTS — Dynamic Docking Test System
• AOPL — Advance Order Parts List
• DSS — Digitized Sky Survey
• C/P — Cold Plate
• DVT — design verification testing
• BC — Broadcast
• MBC — Maximum Breathing Capacity
• SNL — Sandia National Laboratory
• FACTS — FDF Automated Control and Tracking System
• I&O — Inlet and Outlet
• DTC — Design to Cost Program
• CSAP — Control System Analysis Program
• AES — American Electroplaters Society
• FRSI — Felt Reusable Surface Insulation
• BSI — Boeing Services International
• CCS — Complex Control Set (NASA)
• DLSM — Data Link Summary Message
• GORD — Ground Operations Requirements Document
• COFI — Checkout And Fault Isolation (on Board)
• DDES — Data Display Expert System
• FIO — Furnished And Installed By Others
• CMRS — Configuration Management Requirements Standard
• BIU — Buffer Interface Unit
• CFES — Continuous Flow Electrophoresis System
• CSTS — Cryogenic Storage and Transfer System
• AMU — Attitude Match Update
• ITSS — Integrated Tactical Surveillance System
• CDNR — CDR Discrepancy Notice Record
• G&NS — guidance and navigation system

• EMCS — Energy Managment Control System
• DCNP — Document Change Notice Proposal
• CSN — Customer Source Number
• CD — Countdown
• CHR — Cooper-Harper Rating
• ECLSS — environmental control and life support system
• ETT — Estimated Time Of Track
• MHC — Manipulator Hand Controller
• CTCP — Configuration Test Change Period
• DECU — Data Exchange Control Unit
• ADC — Analog-to-Digital Computer
• CBW — Constant Bandwidth
• BMFT — German D-1 Spacelab Payload
• F&PC — finance and program control
• PSR — program status review
• FCRA — Fecal Collection Receptacle Assembly
• FAMS — FDF Automated Monitoring System
• DKC — Design Knowledge Capture
• CHARM — composite high-altitude radiation model
• H/O — Handover
• DTSL — Data Transfer Systems Laboratory
• CBX — C-Band Transponder
• CLAS — Computerized Loads Analysis System
• AIR — Adaptive Intercommunication Requirement
• FCM — Flow Control Module
• D&CS — displays and controls subsystem
• FBC — fluidized-bed combustion
• CCU — Communications Carrier Umbilical
• CDF — Cool-Down Facility
• CCPDSR — communications center processing and display system
• AVID — automated verification information data base
• CB — Center of Buoyancy
• FBCS — fixed-base crew station
• ADM — Air Data Management
• BIS — Biocide Injection System
• EO — Engineering Office
• EEL — Electrical Equipment List
• ID&CS — ID&C subsystem
• EBI — Eyeballs In ( GX)
• LHSC — Left-Hand Side Console
• I/C — Intercommunications
• CDF&TDS — circuit design, fabrication, and test data
• DCEA — Digital Control Electronics Assembly
• AMS — Administrative Messaging System
• APS — Automated Planning System
• BCC — Beacon Control Console
• APC — Advanced Propulsion Comparison
• ALSSSWG — ALS System Security Working Group
• LAPSS — Large-Area Pulse Solar Simulator
• DES — Data Exchange System

• CCL — Commonality Candidate List
• EODB — end of data block
• EPPSS — electrical power/pyro sequential system
• AR — Acceptance Readiness
• GASD — Government Aerospace Systems Division
• EIASN — End Item Assembly Sequence Number
• MLB — Multilayer Board
• ASI — Augmented Spark Indicator
• DCARS — data collection and reduction system
• CAPS — Crew Activity Planning System
• C/F — Center Frequency
• UPN — Universal Product Number
• DSMC — Data Services Management Center
• KLOC — Thousand Lines of Code
• FTT — Field Test Telescope
• DPDM — differential pulse-duration modulation
• DASD — direct-access storage device
• CCS — Central Control Section
• ASPSL — ASPP Sortie Laboratory
• ARSDA — Advanced Radiation Space Defense Application
• DACT — Disposable Absorption Collection Trunk
• CIC — Capital Investment Council
• CCS — Contamination Control System
• BM-TW/AA — ballistic missile tactical warning/attack
• CIWG — Cargo Integration Working Group
• MEB — main electronics box
• ARAR — Accident Risk Assessment Report
• EDCS — Electrical Distribution and Control System
• CPSE — Common Payload Support Equipment
• COAS — Crewman Optical Alignment Sight
• DMCM — double-density modular core memory
• CAU — Command Acquisition Unit
• BDX — burst detector X-ray sensor
• AVD — Air Vehicle Detection
• FPSS — fine-pointing sun sensor
• FDU — Fluid Distribution Unit
• ITU — Input Terminal Unit
• MAR — Mission Analysis Room
• AMRV — astronaut maneuvering vehicle
• MITTS — Mobile Igor Tracking Telescope System
• DIS — Data Interface System
• ATA — Abort Time Assembly
• CCS — Communications and Control System
• EOMF — End Of Minor Frame
• CDUO — Coupling Display Unit Optics
• DARTS — Digital Automated Radar Tracking System
• EGB — Electronic Gimbal Box
• EECOM — Electrical, Environmental, and Communications
• BHS — Base Heat Shield
• HSV — hypersonic vehicle

• LGS — Landing Gear Subsystem
• HPPF — Horizontal Payloads Processing Facility
• IBR — Implementation Baseline Review
• ESTF — Electronic System Test Facility
• FOBS — Fractional Orbit Bombing System
• BD — Binary Decoder
• ATP — Advanced Technical Payroll
• HDI — Human Development Institute
• MBL — Mobile Unit (TACAN Station)
• ISDC — International Space Development Conference
• CPE — Customer-provided equipment
• CSDD — Control Systems Development Division
• CACC — Communications and Configuration Console
• IMST — Integrated Mission Simulation Test
• GIM — Generalized Information Management
• BTMS — Body Temperature Measuring System
• CORA — Coherent Optical Radar Amplifier
• DTRD — Development Test Requirements Document
• EMSP — Enhanced Modular Signal Processor
• CMDM — control multiplexer/demultiplexer
• CCZ — Command and Control Zone
• HUT — Hard Upper Torso
• CC — Convolutional Coding
• ESS — Earth System Science
• IRAM — Input Random Access Memory
• CAL/OSHA — California Occupational Safety and Health Act
• GDDM — Graphical Data Display Manager
• AICBM — anti-ICBM
• HGA — High-Gain Antenna
• ARABSAT — Saudi Arabian communications satellite
• CACB — Center Aisle Connector Bracket
• MEECN — Minimum Essential Emergency Communication Network
• CMRR — Common Mode Rejection Ration
• IMO — Integration Management Officer
• ISSO — Information Systems Security Office
• DAS — Demand Access System
• AUP — Ames Unitary Plan
• BPSK — Biphase Shift Keying
• CAWG — Customer Accommodation Working Group
• EEH — EMU electrical harness
• ESDU — Event Storage and Distribution Unit
• IDEAS — initial design and evaluation analysis system
• DRMR — disposition report on MR
• BFEC — Bendix Field Engineering Corporation
• GIA — general-purpose computer interface adapter
• BCT — Bus Configuration Table
• KSLOC — thousands of source lines of code
• ROM — Rough Order Magnitude
• JPASO — Joint Pacific Area Scheduling Office
• UF — Utilization Flight

• FCSTF — Fuel Cell System Test Facility
• CDAS — Configurations Development Analysis Simulation
• BPC — backpressure control
• BCU — Bus Control Unit
• FNT — Failure Notification Telex
• DIEU — Digital Interface Electronics Unit
• CMC — Center Management Council
• EEP — Electronic Equipment Package
• EMON — Exception Monitoring
• BRF — band rejection filter
• GE-AESD — General Electric Aerospace Electronics Systems
• IFF — Identification, Friend or Foe – Individually Fresh Frozen – International Flavors and Fragrances
• BCP — Benchmark Control Point
• ATC — ATE Computer
• GCO — Ground Checkout
• CA — Corrective Action
• CARM — Customer Accommodation Requirement Model
• GRID — Graphic Retrieval and Information Display
• CEIAC — Coastal Engineering Information Analysis Center
• DMES — dimethylethoxys
• G/G — ground to ground
• DIH — Discrete Input High
• AND — Air Force-Navy design
• CAU — Command Activation Unit
• AWL — Automated Wire List
• SC — Switching Center
• FMD — Fixed-Module Drive
• FLCA — Forward Load Controller Assembly
• GMIP — Government Mandatory Inspection Point
• EUTELSAT — European Telecommunications Satellite
• GASP — General Ascent Trajectory and Sizing Program
• CFT — cross-functional team
• DBGMP — Data Bus Generation and Maintenance Package
• ECRC — Engineering Contract Requirements Committee
• CIVU — Cargo Integration Verification Unit
• M&I — management and integration
• FPEG — fast-pulse electron gun
• ATP — Activation Test Program
• APP — Approach Astrophysics Payload
• DSIF — Deep-Space Instrumentation Facility
• GEDAC — General Electric Detection and Automatic Correction
• EVT — Extravehicular Transfer
• CCS — Communications and Control Segment
• ACT — audio center transmission
• EOSDIS — Earth Observing System Data Information System
• G/C — guidance and control
• MD-YR — yaw roll manual direct control mode
• ICDU — Inertial Coupling Data Unit
• ATP — Airborne Tracking and Pointing
• L/M — list of materials

• NS — Network Services
• MOMS — Mobile Optical Measurement System
• CIRRIS — Cryogenic Infrared Radiance Instrumentation for Shuttle
• FPCA — Forward Power Controller Assembly
• BS — Block Specification
• CCBD — Control Change Board Directive
• MMIP — Mass Memory Integration Plan
• ARA — Auxiliary Recovery Antenna
• ANVIL — CAD tool
• BISC — Biomedical Instrumentation, Scientific and Crew
• CMS-2 — Cambridge Monitoring System
• MERL — Materials Engineering Research Laboratory
• ACC — Automatic Control Console
• BUC — Buckhorn California
• ELDV — Electrically Operated Depressurization Valve
• ILP — Integrated Logistics Panel
• MOPIS — missile operations intercommunications system
• NCTAMS — Navy Computer and Telecommunications Air Master Station
• APC — automatic phase control
• CSTAR — Continuous Stellar-Tracking Attitude Reference
• MBPS — Million bits per second
• CMA — Command Modulator Assembly
• ELE — Earth Limb Experiment
• GCID — Ground Computer Interface Device
• BMAP — Buffer Map
• IM — Intermodulation
• CAP — Cost Account Plan(s)
• EFE — Electronic Field Experiment
• BDA — Backup Drive Amplifier
• AM — Assurance Management
• CDA — cesium-dideuterium-arsenate
• ATS — Atlantic Tracking Ship
• EOCM — Electro-Optical Countermeasures
• CTCS — Central Thermal Control System
• MC&W — Master Caution And Warning
• BMU — Bus Monitor Unit
• BPV — Bipropellant Valve
• CFSD — Critical-Function Sequence Diagram
• BMI — Battelle Memorial Institute
• CMF — Consolidated Maintenance Facility
• EED — Electroexplosive Device
• EGIL — Electrical, General Instrumentation, and Lighting Engineer
• ECRV — Exponentially Corrected Random Variable
• EPD&CS — electrical power distribution and control subsystem
• BRCS — Basic Reference Coordinate System
• BCWP — budget costs for work performed
• ATA — Aft Test Article
• C/T — control and timing
• MPIO — Mission Payload Integration Office
• F/R — Flared Rudder

• CDDB — Common Diagnostic Data Base
• CAT-2 — communications and tracking comprehensive analysis tool
• LARS — Laminar Angular Rate Sensor
• CDC — Classified Document Control
• LRO — Large Radio Observatory
• BP — Bandpass
• DVIS — Digital Voice Intercommunications System
• CA — Cost Account
• APS — Auxiliary Power Subsystem
• BSD — Ballistic Systems Division
• BUAER — Bureau of Aeronautics
• CIDR — Critical Intermediate Design Review
• EPRN — Emergency Program Release Notice
• GMN — GoGMNGorman (TACAN Station)
• HRL — Horizontal Reference Line
• B/C — Bench Check
• AT — Assembly Truss
• CR — Compliance Review
• GBT — gyro bias calibration value
• DADE — Data Acquisition and Documentation Equipment
• CMDB — Configuration Management Data Base
• ADS — Action Document Summary
• CCA — communications carrier assembly
• LVDC — Launch Vehicle Digital Computer
• HRG — hemispherical resonating gyro
• GCDS — ground checkout display and control system
• ASATS — antisatellite simulation
• APE — Arithmetic Processing Extension
• AMC — Automatic Manual Control
• AUF — Authorized User File
• MPHE — Material and Personnel Handling Equipment
• EWA — Estimated Warehouse Arrival
• CDAS — Configuration Design Analysis Simulation
• M/F — Maintenance Factor
• DLR — Designs Loads Report
• MHE — material handling equipment
• M/I — Minimum Impulse
• GNCS — Guidance and Navigation Control System
• MEDICS — Medical Information Computer System
• ESTA — Escape System Test Article
• C-TO-C — computer-to-computer
• DACB — data acquisition control and buffer
• BDA — Bermuda Island
• MAI — Machine-Aided Indexing
• LAMMR — large-antenna multichannel microwave radiometer
• LSSD — level-sensitive scan design
• CTDU — cross-link transponder data unit
• GTE — General Telephone Electric
• BIA — Bus Interface Adapter
• DA — Digital to Analog

• IAB — IUS Assembly Building
• CCSD — Collins Communications Systems Division
• UPN — Unique Project Number
• CLOUDSAT — cloud cover statistical analysis program
• BDD — Burst Detector Dosimeter
• CUIL — Common Usage Item List
• FSTS — frequency standard test set
• H/F — human factor
• FCRT — Flight Display CRT
• SDS — Switched Data Service
• ASCADS — Aft Station Command and Data System
• BW — Beam Width
• CIJB — Cradle Interface Junction Box
• IFO — Information Systems Office
• FHP — Fuel High Pressure
• AIT — autoignition test
• CAB — Cost Audit Board
• DHA — design hazards analysis
• CQIM — Configuration and Quality Information Management
• CEDC — Cyclic Error Detection Code
• CTC — Chief Test Conductor
• CPTA — Core Propulsion Test Article
• CPAR — controlled parts approval
• CELV — Commercial Expendable Launch Vehicle
• GMAL — General Electric Macro Assembly Language
• HFCL — Hydraulic Flight Control Laboratory
• AWCS — Agency-Wide Coding Structure
• AMS — Automated Messaging System
• CBS — Connector Bracket Signal
• SIRTF — Space Infrared Telescope Facility
• CHSF — Cargo Hydrazine Service Facility
• EOHT — External Oxygen and Hydrogen Tank
• DEMP — direct EMP
• MOCC — Mission Operations Control Center
• CA — Contract Award
• TCA — Transformational Communications Architecture
• BSC — Brake Skid Controller
• EVATA — Extravehicular Activity Translational Aid
• MOC — Ministry of Communications
• ITI — inspection and test instruction
• BRRS — Banana River Repeater Station
• DA — Decision Authority
• BATES — battlefield artillery tactical engagement system
• DMMH — direct maintenance man-hours
• FOSMS — facility operation scheduling and monitoring system
• FUB — Forward Utility Bridge
• SGS — Svalbard Ground Station
• AUTO-P — automatic pitch control mode
• SA — Service Agreement
• GTT — Group Technology Time

• EO — Earth Observer
• ASC — automatic sensitivity control
• CASP — Change Assessment Summary Package
• EWE — Emergency Window Escape
• EVMU — Extravehicular Mobility Unit
• AVVI — altitude/vertical velocity indicator
• EEWS — Emergency Egress Window System
• ETRR — environmental test readiness review
• DISP — Dispersive Spectrometer
• GTCU — Ground Thermal Conditioning Unit
• HI — Hawaiian Islands
• HIL — Hardware In Loop
• DWI — Data Word In
• FSH — fixed superhard
• CICCR — configuration information control center requirement
• HCSL — Hybrid Computation And Simulation Laboratory
• K-STSPS — KSC STS Project Specification
• FRM — Facility Requirements Manager
• COL — Checkout Language
• KDMS — Kennedy Data Management SYstem(s)
• DT&O — data, test, and operation
• EOG — Electroculogram
• GT&A — Ground Test And Acceptance
• EMD — Entry Monitor Display
• BOT — beginning of tape
• CAL — Computer-Aided Logistics
• GCMR — Ground Control Message Request
• HTP — Hydroxyl Terminated Propellant
• CDCD — Cargo Design Control Drawing
• EOTS — Electro-Optical Threat Sensor
• ESDP — External Sensor Data Processing
• JHU — The Johns Hopkins University (Baltimore, MD)
• DART — Director and Response Tester
• DIPL — Display Initial Program Load
• LSG — Linear Sequence Generator
• CCU — Communications Carrier Unit
• FEE — Failure Effects Evaluation
• FH — Flex Hose
• ITRB — Integrated Technical Review Board
• H/L — Hardline
• HMC — Hybrid Microcircuit
• DOC — Data Operations Center
• AUDF — Automated Unit Development Folder
• CLRB — Cost Limit Review Board
• HESS — high-energy squib simulator
• CCRA — Cape Canaveral Reference Atmosphere
• CM — Crew Module
• CUL — Common Use List
• CT — Crawler Transporter
• IPD — Information Processing Division

• FMX — FM Transmitter
• LEASAT — Leased Satellite
• CM — Current Month
• SRS — Systems Requirements Specification
• DCDS — Distributed Computing Design System
• BDA — Bermuda Tracking Station
• GDSO — Ground Data Systems Officer
• TOCC — TDRS Operations Control Center
• BTC — Binary Time Code
• CAP — Capability Assurance Program
• ETS — Engineering Technology Satellite
• CSG — Concept Synthesis Group
• HALO — high-altitude large optics
• MMH/Y — maintenance man-hours per year
• ID&CA — inverter distribution and control assembly
• FDLC — Final Design Load Cycle
• CCC — Control Center Complex
• GETS — Ground Equipment Test Set
• EDDF — Error Detection and Decision Feedback
• CMSI — Command Monitor System Interface
• FVSS — Fuel Vapor Scrubber System
• DPRS — Docking Probe Retraction System
• CWLM — Caution and Warning Limit Module
• ETI — elapsed-time indicator
• ESW — Engine Status Word
• BH/MP — Breather Hose/Mouthpiece
• SSF — System Support Facility
• ASP — Airborne Science Program
• FPIF — fixed-price incentive fee
• AM — Actuator Mechanism
• HPRV — Hydrogen Pressure Relief Valve
• ESB — Essential Switching Box
• EBS — Emergency Breathing Subsystem
• CASE — Care Application Service Element
• AWL — Augmented Wire List
• GMM — Geometrical Math Model
• HFA — high-frequency accelerometer
• CDC — Command and Data Handling Console
• DSTF — Delta Spin Test Facility
• HDP — Hold-Down Post
• BPD — Baseline Program Document
• GPTE — general-purpose test equipment
• EMDM — Enhanced Multiplexer/Demultiplexer
• B/O — Burnout
• LPG — liquid-propellant gun
• E/O — engineering/operations
• FIAR — Failure Investigation Action Report
• GCHX — Ground Cooling Heat Exchanger
• HFCV — Helium Flow Control Valve
• NEO — Near Earth Object

• ESMD — Earth Science Mission Directorate
• GTU — Glycol Trim Unit
• BCRT — Binary Code Range Time
• HBBW — half-beam bandwidth
• DS3 — deep-space surveillance system
• HYDAC — hybrid digital-analog computer
• AMS — Amplifier Subsystem
• CSCS — Central Security Control System
• CARID — customer acceptance report item disposition
• CCM — controlled carrier modulation
• DCSP — Digital Control Signal Processor
• IOE — Input/Output Error Log Table
• CSCD — Control System Command Decoder
• ICMT — Intercontract Material Transfer
• SMTF — Shuttle Mission Training Facility
• HMP — Hydrazine Monopropellant
• CDH — Constant Differential Height
• ETUD — external tank umbilical disconnect
• ERSI — Elastomeric Reusable Surface Insulation
• IPPB — Illustrated Provisioning Parts Breakdown
• BCCT — Break Control Command Transducer
• BLS — Bottom Left Side
• SNIP — Space Network Interoperability Program
• FODS — fiber-optic demonstration system
• FPQ — fixed, special-purpose radar
• DHS — Discrete Horizon Sensor
• CAM — Computer Annunciation Matrix
• MDDS — Material Directory Data Sheet
• DEE — Digital Events Evaluator
• MELI — Master Equipment List Index
• ECCCS — Emergency Command Control Communications System
• CAMP — computer-aided message processing
• KA — Kill Assessment
• ESMCR — Eastern Space and Missile Center Regulation
• CCC — Computer Checkout Console
• PSC — Program Support Communications
• HPR — Hydrogen Pressure Regulator
• EPTU — Events per Time Unit
• DELTA — Detailed Labor and Time Analysis
• BMMD — body-mass measuring device
• HRIR — high-resolution infrared radiometer
• CFRP — carbon-fiber-reinforced plastic
• CAS — Calibrated Ancillary System
• EFFGRO — Efficient Growth (Computer Program)
• COV — Cutoff Value
• FDSCU — fluid distribution system control unit
• AST — all-systems test
• CSPF — Critical Single-Point Failure
• HCU — Hydraulic Charging Unit
• BT — Burn Time (Engine)

• EEE — electronic, electrical, and electromechanical
• MICS — management information and control system
• MOSC — Mission Operations Support Center
• IWBS — Indirect Work Breakdown Structure
• MCOP — Mission Control Operations Panel
• CD/V — concept definition and validation
• LOV — Limit of Visibility
• LORA — level-of-repair analysis
• HIV — Helium Isolation Valve
• CHI — computer-to-human interface
• SMTF — Software Maintenance and Training Facility
• LINS — Laser Inertial Navigation System
• CSPO — Control Systems Procurement Office
• IIOP — in-orbit plane
• ILO — Integrated Logistics Operations
• EUVE — extreme ultraviolet experiment
• SLE — Space Link Extension
• ETOC — Estimated Time Of Correction
• CDCD — Collins Defense Communications Division
• G-V — Gravity-Velocity
• DODI — DoD Instruction
• EDCAS — equipment designer's cost analysis system
• EFP — ESA-furnished property
• G/T — Gain versus Temperature
• GHX — Ground Heat Exchanger
• MPTP — Main Propulsion Test Program
• FMAR — Final Mission Analysis Review
• DSL — Design Specification List
• DELNI — Digital Ethernet Local Network Interconnect
• BFN — beam-forming feed network
• PIO — Program Integration Office
• ESMS — Environmental And Special Measurements Systems
• FOI — Field Operations Installation
• ERBM — extended-range ballistic missile
• FHO — failed hardover
• METVC — main engine thrust vector control
• GWA — General Work Area
• EVSC — Extravehicular Suit Communications
• IRCS — Integrated Resource Control System
• MMCA — midmotor controller assembly
• MOCITE — mobile checkout and integration test equipment
• GEM — generic electronics module
• OSC — Office of Space Communications
• BM — Battle Management
• AVCG — Automatic Vapor Crystal Growth
• CRP — Configuration Requirements Processing
• MC/EC — mission-critical/embedded computer
• ICCP — Interface Coordination and Control Procedure
• CCMTA — Cape Canaveral Missile Test Annex
• CRI — Certification Requirements Index

• PAR — Performance and Accountability Report
• GNE — Guidance and Navigational Electronics
• IFTE — Intermediate Forward Test Equipment
• I/S — installation of systems
• BEAF — Beam Expander Alignment Function
• CUP — Commonality Usage Proposal
• ISHA — Integrated System Hazard Analysis
• ESCS — Electronic Spacecraft Simulator
• AR — Avionics Ring
• RFS — Radio Frequency Surveillance
• CFM — customer-furnished material
• EPGS — Electrical Power Generation Subsystem
• BAN — Budget Allocation Notice
• AVE — Airborne Vehicle Equipment
• IDI — Instrumentation Data Item
• RS — Relay Satellite
• ETSS — External Tank Separation Subsystem
• ISO — International Standardization Organization
• DSAT — Defensive Satellite
• DSEA — data storage electronics assembly
• FTMC — Fault-Tolerant Memory Control
• BFRP — boron fiber-reinforced plastic
• FMOFPL — First Manned Orbital Flight with Payload
• GSSI — Ground Support System Integration
• GCCC — Ground Control Computer Center
• HCMM — heat capacity mapping mission
• CHIPSAT — Cosmic Hot Interstellar Plasma Spectrometer
• DOS — Daily Operations Summary
• ETVA — External Tank Vent Arm
• M- — time in days before move operations
• CAP — Competitive Access Provider
• FOCR — Final Operational Concept Review
• CSFT — Combined Subsystem Functional Test
• EBW — Exploding Bridge Wire
• AWPV — automated weld process verification
• ISMRB — Information Systems Management Review Board
• CPES — crew procedures evaluator simulator
• EPSP — experiment power switching panel
• DVO — Delta Velocity On/Off
• CGF — Command Generation Function
• LWS — Lightning Warning System
• LLTIL — long-lead-time items list
• FIIWG — Facility Integration and Installation Working Group
• DIDSIM — defense-in-depth simulation
• B/A — Barometric Altimeter
• EOTF — Engineering Order To Follow
• BSE — Booster Systems Engineer
• SCR — Strip Chart Recorder
• JSLWG — Joint Spacelab Working Group
• COMAT — Compatibility of Materials

• DMICB — Daily Mission Integration Control Board
• FIM — field instruction memorandum
• BVC — Boost Voltage Converter
• COSI — Closeout System Installation
• PRB — Peer Review Board
• CCL — Closed-circuit loop
• LUD — layup die
• FLW — Fellows (TACAN Station)
• AC — Audio Center
• FERD — Facility And Equipment Requirements Document
• M&O — Mission Operations
• CD — Central Database
• DWT — dog wags tail
• EBO — Eyeballs Out (-GX)
• DPR — Definition Phase Review
• CPE — Change Package Engineer
• AVVEU — altitude/vertical velocity indicator electronic unit
• DMOS — diffusive mixing of organic systems
• CINCSBL — commander-in-chief, Space-Based Laser
• HGS — Hydrogen Gas Saver
• COMPOOL — Common Data Pool
• MPTA — Main Propulsion Test Article
• MDSS — Mission Data Support System
• EACE — Early Analysis Capability Enhanced
• HEMV — Helium Manual Valve
• AWS — Advance Warning System
• G&C — ground rules and constraints
• MAU — Million Accounting Units
• CEEP — Composite Entry Evaluation Program
• CMW — compartmented mode work station
• ICW — interrupted continuous wave
• F/O — fuel oxidizer
• BPR — Biological and Physical Research
• KIP — Keyboard Input Processor
• IED — Interacting Equipment Document
• DESPOT — Design Performance OPtimization
• FSF — First Static Firing
• IF/FDM — intermediate frequency/frequency division multiplexer
• HDDR — high-density digital recorder
• LTHIS — laboratory test hardware inventory status
• CMT — Critical Military Target
• CMAT — Compatible Materials
• COMM — Communications software
• GIC — GPC Interface Console
• CASES — control and structures experiments for space
• EXO — Experiment Operator (in Spacelab)
• LFM — Local Focus Mechanism
• DAI — Deferred Acceptance Item
• DCOS — Data Communication Output Selector
• ICTE — Inertial Component Test Equipment

• FCTF — Fuel Cell Test Facility
• MAOT — maximum allowable operating time
• IRDTS — ITS RF and digital test set
• HAMP — Handling and Moving Procedure
• MPAD — Mission Planning And Analysis Division (JSC)
• DEL — Deorbit, Entry, and Landing
• FDIIR — fault detection, isolation, identification, and
• FVDS — fuel vent and drain system
• DSCU — digital computer switching unit
• MESSOC — model evaluation of Space Station operations cost
• IECM — induced-environment contamination monitor
• CAR — Certification Approval Request
• CSIU — Core Segment Interface Unit
• CAR — Customer Acceptance Review
• ICMS — Indirect Cost Management System
• EDO — extended-duration orbiter
• MASSPO — Manned Space Flight Support Project Office
• EMCC — Emergency Mission Control Center
• ATS — Asynchronous Task Storage
• HGVT — Horizontal Ground Vibration Test
• IDAC — Integrated Digital-Analog Converter
• AUTO-YR — automatic yaw roll mode
• C2S — command and control subsystem
• DOT — Deep Space Optical Communications Terminal
• DNS — Director of Network Services
• IEA — Integrated Electronic Assembly
• DLO — Director of Launch Operations
• CDCO — coupling display, manual control optics
• CCP — Center Console Panel
• MDSE — Manufacturing and Development Support Equipment
• ISIS — Integrated Safety Information System
• MCPS — Major Cost Proposal System
• JPC — Joint Power Conditioner
• ER&I — engine receiving and inspection
• MLL — MDM Launch Left
• CCP — Configuration Control Panel
• FCR — Facility Change Request
• IMCC — Integrated Mission Control Center
• BETA — Ballistic Exploitation and Target Acquisition
• GWT — Ground Winds Tower
• LINC — logic and information network compiler
• LHOP — Laser-Hardened Optical Payload
• MBI — Multibus Interface
• CMPP — Configuration Management Program Plan
• LEU — large external unpressurized
• HAD — heat-actuated device
• CCFT — Controlled Current Feedback Transformer
• ASAP — ACE Shuttle Application Processing
• CLOT — Combined Loads Orbiter Test
• I-LOAD — initialization load

• HSU — Helium Service Unit
• AVL — address validity
• HCV — Helium Check Valve
• CLCS — Checkout and Launch Control System
• D/A — decoder activate
• HEG — Helium Gauge
• CGAD — Collins General Aviation Division
• GPUR — GOAL Test Procedure Update Request
• FPBOV — Fuel Preburner and Oxidizer Valve
• EXT — Experiment Terminal (Operator Console On Spacelab)
• BATE — Base Activation Test Equipment
• IMCR — Integrated Master Control Record
• PAD — Project Authorization Document
• HGDS — Hazardous Gas Detection System
• HIU — Headset Interface Unit
• DSKY — Display Keyboard
• FMAD — Fluid Management And Distribution
• KAU — Kilo Accounting Unit
• ATL — Aero-Thermal Lab
• EH/M — extension hose mouthpiece
• DO — Discrete Output
• EREP — Earth Resources Package
• DDDU — Display Decoder Driver Unit
• BCR — Bar Chart Report
• IMCP — Integrated Monitor and Control Panel
• LVE — Low-Voltage Electronics
• EPIRSS — extended-performance infrared search set
• H/S — Heat Shield
• DRUC — Disposition Record Unsatisfactory Condition
• MPBS — Main Power Bus Supply
• CCR — Cargo Compatibility Review
• SSR — Satellite Situation Report
• LTR — Laboratory Test Report
• IVLN — integrated vehicle logic network
• B/SC — brake/skid control
• LCB — Least Common Bit
• NMC — National Center for Atmospheric Research
• FIR — Fuel Indicator Reading
• CFSTI — Clearinghouse for Scientific and Technical Information
• ETROD — Eastern Test Range Operations Directive
• LLO2 — lunar liquid oxygen
• MARP — Markov Analysis and Reliability Prediction
• ECCP — Experiment Configuration Control Panel
• JPP — Joint Program Plan
• ISN — Internal Statement Number
• L — Lumen
• M/M — maximum and minimum
• IPDR — Incremental Preliminary Design Review
• ISU — international system of units
• MH — man-hour

• CAPS — Crew Altitude Protection Suit
• ICDR — Incremental Critical Design Review
• DVU — Delta Velocity Ullage
• EIFA — Element Interface Functional Analysis
• HSTF — Hypergolic System Test Facility
• DSD — Defensive Shields Demonstration
• KIS — Kitting Instruction Sheet
• CSPU — Core Segment Processing Unit
• ESTL — Electronic Systems Test Laboratory
• CDD — Command Decoding and Distribution
• FTFD — Field Test Force Director
• ESI — Electrical System Integration
• ERCB — Energy Resources Control Board
• FMPAC — fixed multipurpose application console
• AOD — Advanced Object Data
• CCD — Constants Change Display
• BB — BaseBand
• IDEAS2 — independent design and evaluation of advanced spacecraft
• CSOP — Crew Systems Operating Procedures
• MGC — Manual Gain Control
• PTC — Payload Training Capability
• MCVP — Materials Control and Verification Program
• C&I — communication and instrumentation
• BSS — Backup System Services
• SPIP — Strategic Program Implementation Plan
• GUCP — Ground Umbilical Carrier Plate
• BUSGEN — Bussin generator
• GPCB — GOAL Program Control Block
• EETB — electronic/electrical termination building
• GORR — ground operation readiness review
• DRSCS — digital range safety command system
• IRG — Inertial Rate Gyro
• ATS — Automatic Transcribing System
• ISTA — Intertank Structural Test Assembly
• CDPA — Classified Data Preparation Area
• GAS — Getaway Special
• F/F — Fill/Full
• GDSSR — GDSD staff support room
• MAAS — Mission Area Analysis System
• CTI — Critical Transportation Item
• BUR — Backup Rate
• FPSP — Focal Plane Signal Processor
• CFS — schedule factor
• MPS&P — material processing specifications and procedures
• HAA — high-altitude abort
• GF&P — gases, fluids, and propellants
• HULL — Hardware Utilization and Location List
• JTA — Job Task Analysis
• CSDT — Computer Software Data Tapes
• AMS — Automated Material System

• IOT&E — integration operational test and evaluation
• DF-SPE-A — Shuttle Project Engineering Office
• JES — Joint Environment Simulator
• KBC — Kapton Beta Cloth
• MMDF — Mission Model Data File
• ELMS — elastic-loop mobility system
• HM — Hinge Mount
• TV — Test and Verification
• MENS — Mission Element Needs Statement (OPNAV)
• CUDS — Cumulative Data Statistics
• CIVT — Cargo Interface Verification Test
• EAD — ElectricallY Alterable Device
• MAR — Mission Assurance Requirements
• LBL — Left Buttock Line
• DETEC — Defensive Technology Evaluation Code
• GRACE — Ground Radar Calibration Equipment
• EPSTF — Electrical Power System Test Facility
• CINC — commander-in-chief
• HEO — Highly Elliptical Orbit
• ESO — Event Sequence Override
• ALC — Audio Load Compensator
• GIAG — Government-Industry Advisory Group
• DIR — Document Information Record
• MSDS — materials safety data sheet
• JWST — James Webb Space Telescope
• CPCB — Crew Procedures Control Board
• CARR — Customer Accommodation Requirement Representative
• CGSS — Cryogenic Gas Storage System
• F/E — Full/Empty
• GAP — GOAL Automatic Procedure
• CAD — Center Assistant to the Director
• HFRW — high-frequency resistance welding
• FAMU — fuel additive moisture unit
• FCR — Future Communications Requests
• COFAC — Construction Facility
• EVCF — Eastern Vehicle Checkout Facility
• CIRD — cargo integration review dry run
• CMU — control and monitor unit
• BUC — Backup Computer
• HGV — Hydrogen Gas Valve
• CRL — Communications Research Laboratory
• ARC — Automatic Responsivity Correction
• CHW — Command Header Word
• CSPL — Certified Special Processor List
• HER — HIM EquiPment Rack
• AMS — Automated Measurement System
• CAMERA — control and monitoring equipment resource allocation
• GHC — ground half-coupling
• MADC — multiplexer analog-to-digital converter
• BE — Beam Expander

• COM-M — Common Mode
• CCT — command/control transmitter
• MGVT — Mated Ground Vibration Test
• FSV — Flight Space Vehicle
• CRTU — Cryogenic Radiator Test Unit
• DEU-KYBD — display electronics unit equivalent inputs
• LGTA — Landing Gear Test Article
• JPIC — Joint Program Integration Committee
• FCMC — Facility Control and Monitor Console
• IAN — Institutional Area Network
• FESL — Failure Effects Summary List
• FPOV — Fuel Preburner Oxidizer Valve
• HEGV — Helium Gauge Valve
• AS — Antispoof
• IMIP — Industrial Modernization Incentive Program
• L/V — Launch Vehicle
• MOV — Main Oxidizer Valve
• LMCO — Lockheed Martin Corporation
• BP — Buttock Plane
• INS — Information Network System
• D/P — data pack
• HSR — Houston Support Room
• GCDC — Ground Checkout Display and Control
• GAX — GN&C annunciation interface
• MECCA — Master Electrical Common Connector Assembly
• IDRA — Interdivision Revision Authorization
• DHP — developed horsepower
• HLAL — high-level assembler language
• MRIM — MOD/MOC reconfiguration interface manager
• B/A — Buffer Amplifier
• IDEP — Interservice Data Exchange Program
• AM — Antenna Management
• ERTG — Economic Radioisotope Thermoelectric Generator
• EPGS — Earth Observation System Polar Ground System
• HHMU — hand-held maneuvering unit
• KMI — KSC Management Instruction
• ESF — Explosive Safe Facility
• DDDL — Digital Data Downlink
• ISWG — Integrated Support Working Group
• BCS — Beam Control System
• MAICO — manufacturing, assembly, installation, and checkout
• CCV — Chamber Coolant Valve
• MBV — Main Base Visit
• SPS — Spectrum Planning Subcommittee
• FILE — Feature Identification and Location Equipment
• IPWG — Integrated Project Working Group
• CLCS — Consolidated Launch Control System
• FSTE — Factory Special Test Equipment
• GLLD — ground locator laser designator
• EVAL — Earth-viewing applications laboratory

• GVO — Gaviota (TACAN Station)
• HAM — Height Adjustment Maneuver
• ITIS — ITI sheet
• H/X — heat exchanger
• M&A — monitor and alarm
• MAAB — Materials Application Advisory Board
• CAT — computer-aided test
• CCP — Cost Control Program
• IRAMS — inertial reference alignment monitor system
• HCM — hard-copy module
• MD-BF — body flap manual direct control mode
• WOTS — Wallops Orbital Tracking Station
• CDDT — Countdown Demonstration Test
• ICRP — International Council on Radiation Protection
• BPR — Baseline Performance Review
• L/T — Load Test
• KDT — Keyboard and Display Test
• CCU — Crew Communications Unit
• GISO — General Industry Safety Orders
• GMCC — Ground Mobile Control Center
• IMOC — Integrated Mission Operations Center
• BUN — BITE Update Notice
• GPME — general-purpose mission equipment
• HWT — hypersonic wind tunnel
• BUIC — backup interceptor control
• CDS — Centre de Donnés astronomiques de Strasbourg
• IVE — Interface Verification Equipment
• DDHA — Digital Data-Handling Assembly
• F&E — Facility and Environment
• LOGO — Limit of Government Obligation
• IDB — In-suit Drink Bag
• HPGS — High-Pressure Gas System
• HIRAP — High-Resolution Accelerometer Package
• FPO — Future Projects Office
• LS/PPF — Launch Site Payload Processing Facility
• MOSFET — Metal-On-Silicon Field-Effect Transistor
• IESD — Instrumentation and Electronic Systems Division
• IVA — Intravehicular Activity (related To Spacecraft)
• DR — Deputy of Resources
• SMEX — Small Explorer
• CPF — Calibration Parameter File
• ESTEC — European Space Technology Center
• DS-RPIE — direct support real property installed equipment
• EMCD — electromechanical control diagram
• EP&PS — electrical power and pyrotechnics subsystem
• GITG — Ground Interface Technical Group
• CAPRI — Capacitance Rate Integrator
• DMM — developmental instrumentation, MDM mid
• FOSDIC — film optical sensing device for input to computers
• CEMF — Counterelectromotive Force

• TR — Tape Recorder
• ETLOW — External Tank Lift-Off Weight
• DSOT — Deep Space Operations Team
• CONAD — CONUS defense
• L&M — Light and Medium Vehicles Office
• GWM — Guam (STDN)
• HBR — High Bit Rate
• PPS — Payload Planning System
• B/O — booster/orbiter
• KBU — Keyboard Unit
• IECO — Inboard Engine Cutoff
• ELACS — extended-life attitude control system
• GSTS/BM — ground-based surveillance and tracking sagement
• CCO — current-controlled oscillator
• BP — Barber Pole
• ERINT — exoatmospheric reentry vehicle interceptor
• KHIL — KKV hardware in the loop
• COMM — Communications Commercial
• IOPT — Input/Output Parameter Table
• GOMMS — Ground Operations and Material Management System
• CC — Common Carrier
• I/Q — in phase/quadrature
• GFTM — Generic Fluids Transfer Model
• DTM — Deputy Technology Manager
• CIDSC — Contractor In-House Data Support Capability
• CIP — International Communications and Information Policy
• HPOP — high-pressure oxidizer pump
• LIE — Left Inboard Elevon
• CCP — Configuration Change Point (NASA)
• CDP — Computer Data Processing
• ODM — Orbit Data Message
• MER — Maximum Error Rate
• BET — best estimate of trajectory
• GLC — Generator Line Contractor
• MGA — Middle Gimbal Angle
• CSTU — Combined Systems Test Unit
• EDDR — electron dipole-dipole reservoir
• CLF — Consolidated Logistics Facility
• AIP — Aircraft Instrumented Payload
• LOT — Lift-Off Time
• CADFISS — computation and data flow integrated subsystem
• SAC — Satellite de Aplicaciones Cientificas
• SCM — Single Column Model
• DSP — DSS Spectral Processor
• CBC — Change Board Commitment
• HKV — hit-to-kill vehicle
• MSSRV — Mars surface-sample return vehicle
• HRD — high-rate dosimeter
• TDD — Task Description Document
• ITS — Information Technology Security

• CTM — Control, Test and Monitor
• KV — Kill Vehicle
• BMA — body-mounted accelerometer
• BC — Binary Counter
• BOF — beginning of file
• HGM — Hot-Gas Manifold
• ODM — Operational Data Message
• M/E — mechanical/electrical
• CTS — Compatibility Test Set
• IPMS — Inertial Performance Measurement System
• GSIU — Ground Standard Interface Unit
• GSAT — Geosynchronous Satellite
• CC — contamination control
• MDSSC — McDonnell Douglas Space Systems Company
• GASPI — Gimbal Angle, Surface Position Indicator
• IGS — International GNSS Service
• CAMP — Common Ada Missile Package
• PCD — Project Commitment Document
• MBSU — Main Bus Switching Unit
• BS — Backup Subsystem
• MCRF — Mission Configuration Requirements File
• HSSM — Hardened Space Sensor Model
• GSE&I — general systems engineering and integration
• INBIT — input bit
• IVP — Interface Verification Plan
• DDTF — Dynamic Docking Test Facility
• MORL — Manned Orbiting Research Laboratory
• AW — Airlock Wall
• ECC — Encore Computer Corporation
• CMIF — Common Module Integration Facility
• EBR — Eyeballs Right (-GY)
• DSB — Document Status Bulletin
• TOTS — Transportable Orbital Tracking Station
• HPG — high-pressure gas
• CVE — Complete Vehicle Erector
• MPMSE — Multiuse Payload and Mission Support Equipment
• DSDU — Data Storage Distribution Unit
• LEAP — Lightweight Exoatmospheric Projectile
• IDMRD — intermediate and depot maintenance requirements document
• GVSC — Generic VHSIC Spacecraft Computer
• EXC — Experiment Computer
• BMS — Battle Management Simulation
• CWSU — Condensate Water Servicing Unit
• DOH — Discrete Output High
• GLS — Ground Launch Sequencer
• MT&SCDSS — materials technology and structural concepts for dsystems
• EBD — Eyeballs Down ( GZ)
• CFY — Company Fiscal Year
• ECDU — Electronic Coupling Display Unit
• ESC — Executive Safety Committee

• DASA — dual aerospace servoamplifier
• ICCD — intensified CCD
• COMPSIM — concept mission performance simulation
• ASA — Adapter Service Area
• COT — Critical Optical Technology
• DVD — Delta Velocity Display
• EVCS — Extravehicular Communications System
• SRS — Service Request System
• L3 — NDS payload signal
• FHD — fixed-head disk
• CINCSAC — commander-in-chief, Strategic Air Command
• IRST — infrared search track
• GSV — Glove Stop Valve
• GPCIPL — general-purpose computer initial program load
• COSM — checkout servicing and maintenance
• IDCP — interdivision change proposal
• HCCB — Hardware Configuration Control Board
• CD — cold-drawn
• K-STSM — KSC STS Plan/Requirement
• ENVIRON — space natural environment model
• J/S — jammer-to-signal ratio
• ELRAD — Earth Limb Radiance
• MAIR — Manufacturing and Inspection Record
• IHX — Interloop Heat Exchanger
• M/U — Mockup
• LOOMS — laser optics operations and maintenance support
• MILES — a computerized schedule system
• DNO — descending-node orbit
• CASS — CITE Augmentation Support System
• CAO — Cost Administration Office
• BMC3 — battle management communications
• FDSR — Final Design Status Review
• KOI — Ksc Operation Instruction
• SM — Spectrum Management
• HMA — Hypergolic Maintenance Area
• LATRS — Laser Acquisition and Tracking System
• GEOPAUSE — geodetic satellite in polar geosynchronous orbit
• FWG — Facility Working Group
• IAH — Interface Attachment Hardware
• MATS — Master Manufacturing and Test Schedule
• GOS — Ground Operations System
• LAI — Logistics Artificial Intelligence
• DVIS — Digital Voice Information System
• CAP — Crew Activity Plan
• LAMP — LODE Advanced Mirror Program
• CCS — Computer Core Segment (NASA)
• PP — Planning Package
• LIDAR — Laser-Radar
• LPTTL — Low-Pressure Transistor-Transistor Logic
• LEID — low-energy ion detector

• ENS — en route nuclear shuttle
• PSS — Packet Switching System
• CC — Computer Center
• AVE — Avenal, CA [Avenal Airport], USA
• IES — Information Extraction System
• ITRD — Integrated Test Requirements Document
• FDT — full-duplex teletype
• BEC — Backup Event Controller
• M/R — Mixture Ratio (Fuel To Oxidizer)
• FHS — Forward Heat Shield
• IK — Inner Keel
• LIOH — Lithium Hydroxide
• AWS — Automated Wiring System
• CLIPS — C-language inferencing for production systems
• MMIA — Monolithic Microwave Integrated Amplifier
• PCN — Procurement Control Number
• HFCW — hydrogen fluoride continuous wave
• GIE — Ground Instrumentation Equipment
• MACDS — Monitor and Control Display System
• CAFB — Chanute Air Force Base
• LMG — Left Main Gear
• LPOP — low-pressure oxidizer pump
• JSAT — Joint Structural Assessment Team
• IDCA — Inverter Distribution and Control Assembly
• ERETS — Edwards rocket engine test site
• CCC — contaminant control cartridge
• KKW — Kinetic Kill Weapon
• HRPS — Hazard Reduction Precedence Sequence
• EVF — Equipment Visibility File
• MORD — Medical Operations Requirements Document
• B/A — boost/abort
• GESS — Goddard experiment support system
• IMDS — Integrated Monitoring and Diagnostics System
• DSP — Director of Systems Planning
• AW — Assembly Workstand
• SSC — John C. Stennis Space Center
• FWC — filament-wound case
• CCC — Communication Control Center
• DOM — Development Operations Manager
• FSGS — flare/shallow glide slope
• MJS — Manipulator Jettison System
• PP — Program Plan
• GVTA — Ground Vibration Test Article
• EATR — Extravehicular Assist Teleoperator Robot
• IRCFE — Infrared Communications Flight Experiment
• GSTDN — Ground Satellite Tracking Data Network
• CCU — Crew Compartment Umbilical
• GIWG — Ground Interface Working Group
• IGA — Inner Gimbal Angle
• EAT — Environmental Acceptance Test

• EBNET — EOS Backbone Network
• BPC — Boost Protective Cover
• CCR — Configuration Control Record
• EP — Education Programs
• MOCR — mission operations control room
• ASC — Array Stowage Container
• CMAR — Configuration Management Action Request
• FMC — forward motor controller
• MMIDS — Man-Machine Interface Development Station
• IOCP — ITS On-board Computer Program
• CMD — controller, main display
• FMCA — forward motor controller assembly
• ESPS — Experiment Segment Pallet Simulator
• BLOW — booster lift-off weight
• LSTS — Launch Site Test Set
• HFDS — Hydrogen Fluid Distribution System
• EPCDC — electrical power conditioning, distribution, and control
• MSK — Manual Select Keyboard
• IWS — Integrated Water System
• CD — call director
• EDPL — Engineering Development Processor Laboratory
• BSI — Booster Situation Indicator
• MIRV — multiple independently targetable reentry vehicles
• INCO — instrumentation and communication officer
• GCILU — Ground Control Interface Logic Unit
• HESSI — High Energy Solar Spectroscopic Imager
• CAR — Cloud Absorption Radiometer
• MPAC — Multipurpose Applications Console
• FDDB — Function Designator Data Base
• LOO — Launch Operations Orders
• LAET — Limiting Actual Exposure Time
• KKVWS — Kinetic Kill Vehicle Weapon System
• CRC — Cyclical Redundancy Code
• FDX — simultaneous, two-way, full-duplex channel
• EVSTC — extravehicular suit telecommunications
• LVPS — low-voltage power supply
• AM — Alpha Meter
• GSTDN — Ground Spaceflight Tracking and Data Network
• IGC — Interactive Gaming Center
• MFLOPS — millions of floating-point operations per second
• CAM — cost account manager
• HMV — Hydrogen Manual Valve
• MCCP — Mission Contamination Control Plan
• DTE — Direct To Earth
• CCC — Complex Control Center (NASA)
• MCBF — mean cycle between failures
• GEOMOD — geometric modeler
• HWIL — Hardware In Loop
• ICHA — Integrated Cargo Hazard Assessment
• IMDB — Integrated Maintenance Data Base

• IGOS — Interactive Graphic Orbit System
• BRM — Baseline Reference Mission
• IDO — interdivisional operation
• NMC — Network Monitor and Control
• GST — Ground System Test
• HMB — Hard Mobile Basing
• ETCO — equipment transfer/change order
• GTVI — gimbal angle and translational velocity indicator
• MSEC — Master Separation Events Controller
• LWA — Local Wavefront Analyzer
• STS — Shuttle Transportation System
• ISTB — Integrated Subsystem Test Bed
• ISTP — Integrated Space Transportation Plan
• IBSS — Infrared Background Signature Survey
• METS — multienvironment test system
• CH/SL — certified hardware/software list
• GSIF — Ground System Interface Facility
• HRSI — High-temperature Reusable Surface Insulation
• IHTV — interim hypersonic test vehicle
• KEW — kinetic-energy weapon
• CAPS — Crew Altitude Protection System
• DORIS — Determination of Orbit Radio Positioning Integrated from Shuttle
• IMADS — information management assimilation and delivery system
• HSF — Hypergolic Servicing Facility
• IEMCAP — Intrasystem Electromagnetic Compatibility Computer Analysis Program
• MOTR — multiple-object tracking radar
• LEB — Lower Equipment Bay
• IVC — Intervehicular Communication
• MRWG — Mission Requirements Working Group
• HEM — Hitchhike Experiment Module
• MIMO — multiple instruction, multiple data paths
• FOPP — follow-on parts production
• MP/G — material procedure government
• IDAS — Integrated Data Acquisition System
• PCB — Program Control Board
• ICTC — Inertial Component Temperature Controller
• IAF — Interactive Facility
• MC&C — Measurement, Command, and Control
• CVSD — Continuous Variable Slope Data
• DSFT — Distributed System Fault Tolerance
• MTAP — multitask analysis program
• CCC — Controller Checkout Console
• DSOT — Data Systems Operations Team
• DP — Destination Point
• LSSM — Launch Site Support Manager
• EKF — Extended Kalmar Filter
• MPGHM — Mobile Payload Ground Handling Mechanism
• EVCON — Events Control (Subsystem)
• CLF — Central Logistics Facility
• FS3 — Future Security Strategy Study

• H&D — Hardened and Dispersed
• MCO — Mission Control Operations
• EADT — Experiment Agency Data Tape
• BSR — Biological Sciences Research
• SA — Supplemental Agreement
• MSIS — man-systems integration standards
• CHROMEX — Chromosome and Plant Cell Division in Space
• HRDM — High-Rate Demultiplexer/Multiplexer
• HAB — high-altitude burst
• CCC — Consolidated Controls Corporation
• CTM — Center Technology Manager
• GCE — GPS Cargo Element
• IUDS — Integrated Utilities Distribution System
• I/V — Inlet Valve
• UCAV — Unmanned Combat Air Vehicle
• MMCL — Master Measurement and Control List
• CDCM — coupling display, manual control IMU
• LAP — Linear Accelerometer Package
• G/E — graphite-epoxy
• BCH — Base Chaudhuri-Hocquenghen
• IOSC — Integrated Operations Support Complex
• EQE — Event Queue Element
• EMCFA — Electromagnetic Compatibility Frequency Analysis
• MDV — Map and Data Viewer
• HPFT — High-Pressure Fuel Turbopump
• IWG — Interface Working Group
• JETS — joint electronic-type system
• HAADS — High-Altitude Attitude Determination System
• ENDF — Evaluated Neutron Data File
• GRTLS — Glide Return to Launch Site
• GSCU — Ground Service Cooling Unit
• IRAN — inspection and repairs as necessary
• CVA — Convair Astronautics
• DTI — Development Test Instrumentation
• IGES — Initial Graphic Exchange Specification
• ALS — airlock system
• GCILC — Ground Command Interface Logic Controller
• DCRR — Design Change Requirement Record
• IFCG — Interface Control Group
• LMLG — Left Main Landing Gear
• CHIP — College Hire Indoctrination Program
• MAPOLE — Magnetic Dipole Spark Transmitter
• EOAS — Engineering Order Accountability System
• COA — Center Operations Area
• FSIM — Functional Simulator
• BM — Ballistic Missile
• MD-P — pitch manual direct control mode
• HFX — high-frequency transceiver
• BOD — bright-object detector
• CAM — content-addressable memory

• JCA — Jettison Controller Assembly
• LOFO — Low-Frequency Oscillation
• RER — Receiver-Exciter Ranging
• EHSD — existing hardware/software data base
• MER — Mars Exploration Rover
• CDF — cable distribution frame
• POIC — Payload Office Integration Center
• HDRA — high-data-rate assembly
• LTG — Linear Tangent Guidance
• PDL — Procedure Distribution List
• SOCB — Space Operations Control Board
• BCP — Base Condemnation Percent
• GUL — GSE Utilization List
• CIRHS — Critical Items and Residual Hazards List
• GTRI — Georgia Tech Research Institute
• HFP — Hardened Focal Plane
• CD — coin dimple
• SOS — System of Systems
• HPOL — High-Power Optics Laboratory
• MIS-PLAN — MIS-payload activity network
• ISATS — integration spacecraft automated test system
• EMCS — Enhanced Mission Communication System
• HVDS — Hazardous Vapor Detection System
• BPR — Bimonthly Progress Report
• MSC — Mission Support Contract
• CAS-P — CAS pitch control mode
• CCC — Concurrent Computer Corporation
• SSE — Solar System Exploration
• FABU — Fuel Additive Blender Unit
• CUF — cross-utilization file
• LSEAT — Launch Systems Evaluation Advisory Team
• HSG — high-speed gear
• HFTE — Human Factors Test and Engineering
• HFO — high-frequency oscillator
• HPS — Hydraulic Power SYstem
• DYB — Dynamic Braking
• HPAU — High-Power Amplifier Unit
• IDAR — interim data assessment review
• MHV — Miniature Homing Vehicle
• IAPU — Improved Auxiliary Power Unit
• LFO — low-frequency oscillator
• BDI — Budget Data and Integration
• MIPR — Military Intergovernmental Purchase Request
• ESA — Earth Science Applications
• MPCMP — Mass Properties Control and Management Plan
• CBRF3 — Bromotrifluoromethane
• IURAP — International User Resource Allocation Panel
• HDRSS — high-data-rate storage system
• HTE — hazardous top-level event
• TAP — Telemetry Acquisition Processor

• HSIG — Hermetically Sealed Integrating Gyroscope
• LFOP — Landing and Ferry Operations Panel
• MBB — Messerschmitt-Boklow-Blahn
• H/A — hazardous area
• FOS — Flight Operations Segment
• GEO — Geostationary Orbiters
• IEMP — Integrated Enterprise Management Program
• LRW — Left Rendezvous Window
• MDD — mate/demate device
• CTIS — crawler-transporter intercom system
• BSDP — booster-stage discharge pressure
• IMSS — In-Flight Medical Supply System
• OMI — Ozone Monitoring Instrument
• MCCR — Mission-Critical Computer Resource
• DSSM — Dedicated Solar Sortie Mission
• LIP — Land Impact Program
• EPDB — Experiment Power Distribution Box
• CCS — Central Computer and Sequencer
• HFMU — high-fidelity mockup
• POIC — Payload Operations Integration Center
• LBET — Large Beam Expander Technology
• CAE — Corrective Action Engineer
• MDRD — Mission Data Requirements Document
• WART — WSC Alternate Relay Terminal
• BUORD — Bureau of Ordnance
• HMU — Hardware Mockup
• JTS — Job Training Standard
• CDR — Central Data Recording
• MCPP — Mission Configuration Product Plan
• IRTCM — Integrated Real-Time Contamination Monitor
• GSP — Ground Safety Plan
• GMF — Ground Module Force
• CAM — Centrifuge Accommodation Module
• MIVP — Mission Interface Verification Plan
• ERCAR — electrochemically regenerable CO2 absorber and
• ITRR — Integrated Technology Requirements Review
• WOTS — Wallops Orbital Tracking System
• IOHA — Integrated Operating Hazard Analysis
• MSM — Mission Services Manager
• CQDR — Critical Qualification Design Review
• CC — Configuration Controller
• LGA — low-gain antenna
• E/L — Entry/Landing
• MARRS — mission analysis and reconfiguration requirements system
• BE — Bell End
• MSR — Mission Support Room (NASA)
• MOCF — Mission Operations Computational Facility
• SSR — Solid State Recorder
• HOST — hardened optical sensor test bed
• ICAI — intelligent CAI

• LEDC — Low-Energy Detonating Charge
• LOAP — List Of Applicable Publications
• LONS — Local On-Line Network System
• HFDP — Human Factors Development Plan
• SMA — Science Monitoring Area
• L/R — locus of radius
• GAIN — Graphic Aids for Investigating Networks
• CME — Commercial Measuring Equipment
• LECP — leading edge connective heat transfer program
• LTA — Lower Torso Assembly
• FECR — Final Experiment Concept Review
• CSS — Communications Services Section
• MCCC — Multimission Control and Computing Center
• HFMP — Human Factors Management Plan
• ECSS — Extendable Computer System Simulator
• MASER — microwave amplification through stimulated eadiation
• FT&C — Formal Training And Certification
• MEIU — Main Engine Interface Unit
• DOT/CIAP — DOT Climatic Impact Assessment Program
• CAT — Control Attenuator Timer
• MHF — Medium High Frequency
• FAA — False Alarm Avoidance
• MIUS — Modular Integrated Utility System
• CCP — Contamination Control Plan
• SME — Scan Mirror Electronics
• HRE — Hardware Reuse Evaluation
• K-STSN — KSC STS Notice
• DSIFE — DSIF equipment
• CAB — Computer Address Bus
• MPOR — Master Power-On Reset
• MHSC — Manipulator Handset Controller
• FSLT — first sea-level test
• LSRM — Life Science Research Module
• BJR — Blockhouse Junction Rack
• SSC — Station Support Computer
• CCD — central command decoder
• HLTL — high-level test language
• CAN — Certification Analysis Network
• MPCA — midpower controller assembly
• ETEDB — External Thermal Environment Data Base
• HDRM — high-data-rate multiplexer
• LOSS — Lunar Orbital Space Station
• DNS — Departure Nuclear Stage
• BMVU — ballistic missile view
• GETI — Ground Elapsed Time of Ignition
• LUPWT — Langley unitary plan wind tunnel
• IUO — interunit order
• ILT/RT — imprecisely located target/relocatable target
• MIU — Malfunction Insertion Unit
• LMD — Large Mirror Development

• BRIL — budget receipt/issuance log
• MSIF — Multisystem Integration Facility
• CAA — Composite Audio Amplifier
• MSR — mission support request (US DoD)
• IVAR — Internal Variable
• GPRP — Government Production Research Property
• IGAX — Inner Gimbal Axis
• MFE — midfrequency executive
• MMPSE — Multiuse Mission Payload Support Equipment
• MCCG — Mission Command and Control Group
• NAC — Network and Communications
• HOW — handover word
• PSC — Policy and Strategic Communications
• SAR — Schedule and Requests
• IASS — Inverter/ATCS Support Structure
• IEMC — Intrasystem Electromagnetic Compatibility
• HERSCP — Hazardous Exposure Reduction and Safety Criteria Plan
• HSRV — Heat-Source Reentry Vehicle
• HVPS — high-voltage power supply
• TDD — Technical Description Document
• CMC — Complex Monitor and Control
• CCC — Coordinate Conversion Computer
• MEFE — Mission-Essential-Function Equipment
• LSST — Launch Site Support Team
• HPC — corrected pressure altitude
• BW — Bridge Wire
• STRV — Space Technology Research Vehicle
• NISN — NASA Integrated Services Network
• DFIS — DFI subsystem
• ICF — Interface Control Function
• CL — Contractor Leased
• MCPC — Manipulator Controller Power Conditioner
• KPSM — Klystron Power Supply Modulator
• MPPSE — Multipurpose Payload Support Equipment
• CPO — Central Planning Office
• CCU — Coupling Control Unit
• INITCO — initialization and checkout
• BSA — battery bus solar array
• MBPS — Main Bus Power Supply
• MEU — Medium External Unpressurized
• CFD — Central Flight Dynamics
• DMON — Discrete Monitoring
• DSCN — Design and Simulator Computation Network
• IITCS — Igloo Internal Thermal Control Section
• USA — User Service Access
• OCT — Office of the Chief Technologist
• SHARES — Shared Resources High Frequency Radio Program
• HRDR — high-rate digital recorder
• KCV — KKV carrier vehicle
• MDOP — maximum design operating pressure

• MCC-K — Mission Control Center, Kennedy
• BCID — baseline candidate item data base
• GSU — Gas Servicer Unit
• MITOC — missile intercom technical operational communication
• MSFSG — Manned Space Flight Support Group
• IOQE — input/output queue element
• LFF — lower forward fuselage
• HASC — High-Altitude Surveillance Concept
• BM — body-mounted
• MERU — Milli-Earth Rate Unit
• BO — beating oscillator
• CCS — Configuration and Control Segment
• JST — joint systems test
• IRP — Inertial Reference Package
• MSOCC — Multisatellite Operations Control Center
• LRES — Liquid Rocket Engine Stability Program
• RE — Ranging Equipment
• GSIG — Ground Systems Integration Group
• IN — Information Systems Directorate (KSC)
• IDSD — Institutional Data System Division (JSC)
• FPWG — FSD PLanning Working GRoup
• LCG — liquid-cooled garment
• IOL — interoffice letter
• CAP — contractor-acquired property
• GUIDO — Guidance Officer
• CCP — Change Control Panel
• CSP — Certified Special Processor
• MHA — multiple-headset adapter
• CAR — configuration and acceptance review
• BSM — beam-steering mechanism
• LUS — Liquid Upper Stage
• DFL — Decommutator Format Load
• IPP — Installation-Provided Property
• SLOC — Single Line Of Code
• VITS — Video Teleconferencing System
• GPBIM — general-purpose buffer interface module
• CSS — Cross Support Services
• BAROC — Baroset Correction
• HEF — High Efficiency
• MRDB — Mission Requirements Data Base
• ISRB — Integrated System Review Board
• TSA — Transportation Security Agency
• HCDB — Historical Cost Data Base
• PAA — Phased Array Antenna
• GSVOO — ground station visibility of orbiting objects
• EF — Electronic Field
• CEF — comsec equipment facility
• FEMCPL — facilities and environmental measurement component parts
• LI — Laser Illuminator
• MSCS — Mobile Service Center System

• BCH — binary-coded hexadecimal
• CS — Critical System
• LHP — left-hand panel
• CAR — Certification Analysis Requirements
• IGS — International Ground Stations
• LOR — Line Outage Recorder
• IC/ES — Intercommunication/Emergency Station
• CAR — Corrective Action Record
• CC — Crew Compartment (NASA)
• FLLK — frustum-lifting lug kit
• DINS — Defense Inertial Navigation System
• HIC — Hardware Integration Contractor
• WIND — Solar Wind Observer
• LERC — Lewis Research Center
• HOLC — high-order language computer
• INTC/O — integrated checkout
• FPIT — field preinstallation test
• LHCL — liquid hydrogen chloride
• IEFT — Integrated Experiment Functional Test
• MMDB — Master Measurement Data Base
• KDV — KKV deployment vehicle
• MRI — Measurement Requirements and Interface
• RPS — Remote Proposal System
• RLV — Reusable Launch Vehicles (aeronautics)
• LDAR — Lightning Detection and Ranging
• GOSP — Ground Operational Support Plan
• LLS — Launch and Landing Site
• CMF — controller, motor, forward
• INSAT — India Communications Satellite
• MMRS — Manned Military Recovery System
• GOSRP — ground operational support requirements plan
• GMIL — KSC STDN station
• EIWB — end item workbook
• HRSO — high-resolution solar observatory
• IMTF — Integrated Manufacturing Test Facility
• BFP — Buyer-Furnished Part
• VITS — Video Teleconferencing Service
• IMBLMS — integrated medical/behavioral laboratory measurement
• BFSPLP — BFS payload preprocessor
• SM — Statistical Multiplexer
• GTP — General Test Plan
• DTT — Design Test Tool
• TIP — Technical Implementation Plan
• ERNO — Entwicklungts Ring Nord Organization, Space Division of Eum, VFW-Fokker-Mannheim, Germany
• LVSSTS — launch vehicle safety system test set
• DETIR — Defensive Technology Information Repository
• LIC — Load Interface Circuit
• MSRP — Mission Support Real Property
• MIPIAN — computer-assisted process planning
• I/T — intertank

• LFAM — low-frequency accelerometer modes
• IVS — Interface Verification Summary
• ECK — Emergency Communication Key
• BSR — Bit Slippage Rate
• CCP — Configuration Control Phase (NASA)
• INTASAT — Instituto Nacional de Tecnica Aerospacial SATellite
• ERBACT — ERB action item
• IORTD — input/output relationships and timing diagram
• SMDS — Statistical Multiplexer Data System
• LDD — logical data base design
• EPO — Element Project Office
• TSO — Technical Support Office
• FLAIR — functional language articulated interactive resource
• I&RS — instrumentation and range safety
• HGAS — high-gain antenna system
• MSDT — Multiple Shuttle Data Tape
• MINISAT — Miniature Satellite
• CIP — Change Information Page
• HAINS — high-accuracy inertial navigation system
• HRDA — high-rate data assembly
• KCRT — keyboard cathode-ray tube
• HSB — heat shield boost
• IPM — integration program manager
• BBC — before-business clearance
• CDM — Configuration Design Module
• MFRM — Mobile Foot Restraint Manipulator
• OLA — Office of Legislative Affairs
• GSDS — Goldstone Duplicate Standard
• ILCCS — integrated launch checkout and control system
• LC&CO — launch control and checkout
• MECF — Main Engine Computational Facilities
• HELCUSS — high-energy laser computerized unmanned space
• LRSI — Low-temperature Reusable Surface Insulation
• CA — Critical Analysis
• NOC — New Operations Center
• MOL — Mission Operations Laboratory
• BDP — Burst Detection Processor
• ICCWG — Intercenter Communication Working Group
• IPAS — Integrated Problem Assessment System
• WART — White Sands Auxiliary Remote Tracking
• LLR — Load-Limiting Resistor
• SMD — Space and Missile Defense
• IEEE — International Electrical and Electronic Engineers
• I3L — isoplanar integrated injection logic
• L&T — Laboratories and Test
• ISPG — Institutional Support Planning GrouP
• DSI — Distributed System Integration
• CAS — cost accounting standard
• CB — coax interface bracket
• MOW — Mission Operations Wing

• CAM — Control Account Managers
• HEAO — High-Energy Astronomy Observatory
• MSC — Mission Systems Contract
• DP — Digital Processing
• CCP — Controlled Components Program
• IPTCS — Igloo Passive Thermal Control Section
• TIP — Technical Information Program
• KHILS — KKV Hardware-in-the-Loop Simulator
• CDC — Computer Development Center
• NOP — Network Operating Plan
• DTS — Digital Test Set
• MOCS — Multichannel Ocean Color Sensor
• LVTC — Launch Vehicle Test Conductor
• LLCF — Launch and Landing Computational Facility
• SDS — Shuttle Drawing System
• PDF — Programmable Data Formatter
• CINCAD — commander-in-chief, Air Defense
• EPS — Emergency Planning Subcommittee
• ILSCP — integrated logistics support concept plan
• MICNS — modular integrated communication and navigation system
• KEV — kinetic-energy vehicle
• GCCO — Ground Control Checkout
• LPOX — low-pressure oxygen
• MNET — Mission and Data Operations Directorate network
• IMRB — Interim Mission Reconfiguration Base
• FFF — Final Factory Functional
• LSSP — Launch Site Support Plan
• FCB — Fracture Control Board
• ECT — Experiment Command Tape
• COMP — Computation Of Rendezvous Targeting
• HCSHT — high-carbon steel heat-treated
• IDTA — Interdivisional Technical Agreement
• HVE — high-voltage electronics
• HMTT — Hurricane Mesa Test Track
• IMW — intelligent machining work station
• MCDU — Multifunction CRT Display Unit
• M/SCI — mission/safety-critical item
• KEAS — Knots Equivalent Air Speed
• LEFF — launch effectivity
• EXTRAJ — ascent trajectory
• DTV — Developmental Test Vehicle
• IPAR — Irregular Parts Authorization Request
• MSIA — Multispectral Image Analyzer
• EDS — Earth Departure Station
• GMEM — GPC memory
• LPOT — low-pressure oxidizer turbopump
• MITAS — Missile Threat Analysis Simulation
• L/H — Local Horizontal
• HSK — Horizontal Sling Kit
• HEDS — High Endo Designation Sensor

• IECS — Igloo Environment Control Subsystem
• MPLN — Maintenance Planning (Data Base)
• MHP — Move and Handling Procedure
• FLAG — Flexible Assignment Generator
• ILSC — Integrated Logistics Support Concept
• J/M — jettison motor
• HESSI — High Energy Squib Simulator Instrument
• HSA — heat shield abort
• IMPACT — Integrated Material Productivity Action
• CAS — Coverage Analysis System
• ILSSE — Integrated Life Science Shuttle Experiment
• MRC — Measurement Requirements Committee
• HTM — high-throughput mission
• MEP — Mars Exploration Program
• HLC — Hybrid Load Controller
• CAS — Crew Accommodation System
• LPFTP — low-pressure fuel turbopump
• USM — Unit of Service Metric
• CCP — Corrosion Control Plan
• LSTD — Laser System Technology Demonstration
• BP — budgetary and planning
• ESC — Electronic Systems Command
• L1 — primary navigation signal
• HAST — high-altitude supersonic target
• GIDD — GSE Interface Definition Document
• SOCB — Space Operations Change Board    
• L2 — secondary navigation signal
• TCA — Telemetry Channel Assembly
• HO — hydrogen-oxygen
• LEH — launch and entry helmet
• EMRLD — excimer moderate Raman-shifted laser device
• CCC — Command Control Console
• IL — Internal Letter
• P2P — Program to Program
• GSLS — Ground Station Link Survivability
• LACIP — large-area crop inventory program
• DMSIF — DMS Integration Facility
• HRTS — HR&T system
• CSU — central switching unit
• CC — Corner Cube
• NPR — NASA Procedural Requirement
• IEIWG — International Element Interface Working Group
• KCR — KSC Change Request
• PAA — Program Alignment & Analysis
• MHW — Multihundred Watt
• MSO — Mars Science Orbiter
• GRNC — group not counted
• DIDTHT — defense-in-depth threat
• INT — Integrated Test
• MDCA — Main Distribution Control Assembly

• LOSR — Line-Of-Sight Range
• IPF — IUS Processing Facility
• LTDT — Langley Transonic Dynamics Tunnel
• WSTF — White Sands Test Facility
• MBCP — Mission Budget Capture Program
• MFV — Main Fuel Valve
• LWHS — Lightweight Headset
• JSTPS — joint strategic targeting planning staff
• DSS — Destination Surface Systems
• SOC — Simulation Operations Center
• SPIP — SSP's Process Integrity Plan
• DMSSIM — DMS simulation
• WSTF — White Sands Training Facility
• EWW — extended workweek
• SRB — Systems Review Board
• PCC — Processing Control Center
• MCIR — Mission Configuration and Implementation Requirements
• MSM — Manned Support Module
• SMC — Sciences Mission Directorate
• SAR — Software Acceptance Review
• MDTSCO — McDonnell Douglas Technical Service Company
• POLAR — Polar Auroral Plasma Physics Spacecraft
• LCHTF — low-cycle high-temperature fatigue
• JSL — Job Select Logic
• MCLT — Maximum Cruise Level Thrust
• IDOT — Instrument Digital On-line Transcriber
• DAS — Demand Access Service
• LOR — Lunar Orbit Relay
• CE — Current Expendable (NASA)
• VSS — Voice Switching System
• IEEP — incapacitated emergency egress practice
• LSSC — launch site support contractor
• MPTS — multipurpose tool set
• MPST — Multipurpose Support Team
• PRD — Resources Planning Division
• LBTB — launch base test plan
• HTLL — high-test-level language
• L/E — left-hand engine
• CMS — Command Matrix Switch 
• DTF — Design & Test Facility
• LROSS — Long-Range Optical System Study
• MPF — Mars PathFinder
• LSD — Launch Support Directive
• MIIA — Merritt Island Industrial Area
• MRTFB — U.S. Major Range And Test Facility Base
• TA — Technical Authorities
• IMOC — Integrated Mission Operations Complex
• IFASC — Integrated Functions Assessment Steering Committee
• VOTS — Voice Teleconferencing Service
• MIPIR — missile impact pointing imaging radar

• ST — Senior Scientific and Technical
• NPP — Network Planning and Preparation
• LOCB — Launch Operations Control BUilding
• BLPG — buried long-period grating
• HFRA — high-frequency recovery antenna
• IOC — Initial Operational Concept
• LCR — Low Cross Range
• LBNPD — Lower Body Negative Pressure Device
• MIDAS — Mission integrated design analysis simulator
• M2P2 — multimission production plan
• HDRS — high-data-rate system
• RS — Symbol Rate
• KHB — KSC Handbook
• MICOS — multifunctional infrared coherent optical sensor
• CTS — Center Telecommunications System
• FM — Functional Managers
• CMF — Complex Maintenance Facility 
• GVL — Ground Vibrations Laboratory
• HDX — half-duplex
• MMOS — Multimode Optical Sensor
• KBIM — Keyboard Interface Module
• HLCM — high-level control module
• SOE — Standard of Excellence
• BCE — Burn Control Element
• SOC — Space Operations Council
• LVP — Low-Voltage Pressure
• ITS — Integration & Test System 
• GSTP — Ground System Test Procedure
• HPV — high-pressure valve
• CCS — Console Communication System (NASA)
• IH/SR — integrated hardware/software review
• MEV — mass excursion vehicle
• LMDE — Lunar Module Descent Engine
• HELF — High-Energy Laser Fluence
• GBOTV — ground-based OTV
• JCCS — job card control system
• ICI — Interim Configuration Inspection
• HI — Honeywell, Incorporated
• MII — Master Inspection Item
• LVR — low-voltage release
• MSL — Mars Science Laboratory
• LOP — Launch Operations Panel
• ETF — Eglin Test Facility
• LEADS — LWIR Exoatmospheric Discrimination Study
• JIP — Joint Installation Plan
• HRC — Hasselblad Reflex Camera
• LTWG — Launch Test Working Group
• HIBREL — high-brightness relay
• HPOTP — high-pressure oxidizer turbopump
• VHF — Video High Freqency

• PIP — Process Improvement Project
• BN — Ballistic Number
• OTV — Operational Television
• M/W — make work
• SPF — Service Providing Facilities
• IUI — Integrated User Interface
• GE/B — General Electric Burroughs
• GNCSIM — GN&C simulation
• EVSS — Extravehicular Space Suit
• CRT — Computer Response Time
• MEBO — main engine burnout
• ENG — ElectronYstagnogram
• SOC — Science Operations Center
• ISPF — interactive system productive facility
• LHFEB — left-hand forward equipment bay
• SSA — S-Band Single Access
• CDP — Confidence Development Program
• GPRN — GOAL Test Procedure Release Notice
• HMPAC — helmet-mounted multipurpose applications control
• MSCR — measurements/stimuli change request
• HRMA — high-resolution mirror assembly
• GUSB — guided, unified S-band
• MOCV — Manual Oxygen Control Valve
• IFTD — Interface Terminal Distributor
• HRAA — high-rate acquisition assembly
• MRR — Mission Requirements Request
• ISLM — integration shop and lab manager
• HPI — high-performance insulation
• DBD — dead band
• HEXAD — developmental 6-axis IMU
• MMES — MSFC Mated-Element System
• IWDS — inter-work-package distributed system
• SIP — Standard Internet Protocol
• BG — Back Gear
• CINCNET — Commander-in-Chief Network
• SSEO — Space Science and Earth Observation
• IFDL — interfacility data link
• IDSO — interdivisional sales order
• MTRS — McMurdo Tracking Relay System
• MCRG — Mission Configuration Requirements Group
• UMA — University of Massachusetts Art
• SHARES — Shared Resources
• ETS — Engineering Test Satellite
• HSCU — Hydraulic SUPPly and Checkout Unit
• CT — Compatibility Testing
• DTS — Distributed Teleconferencing System
• MASTIF — Multiaxis Spin Test Inertial Facility
• IBC — impurity-band conductor
• KDN — Kinetically Designed Nozzle
• PMP — Point-to-Multipoint

• HEAP — high-energy aimpoint
• EV88 — Experiment Version 88
• EHX — experiment-dedicated heat exchanger
• ICAPC — increased-capability adaptive payload carrier
• CSO — Communication Service Office
• MMR — mass memory ready
• LLOS — Landmark Line of Sight
• TTR — Time to Restore
• RPS — Retrieval Processing System
• EMC — Element Multiplexer/Correlators
• CTT — Command Transfer Tape
• WIND — Project namd for Interplanetary Physics Laboratory
• LINJET — Liquid Injection Electric Thruster
• NSD — NISN Services Document
• PTC — Pacific Telecommunication Council
• CC — communications control
• BC — Bolt Center
• MRCR — Measurement Requirement Change Request
• PRG — Program Requirements Guidance
• KNO — Kano, Nigeria
• ISTP — Integrated Short-Term Plan
• HPOT — high-pressure oxidizer turbopump
• MEKF — Misson Equipment Kit Facility
• IRME — Initiator Resistance Measuring Equipment
• ILSIM — integration of lethality studies into model
• JIS — joint integration simulation
• MCI — midcourse interceptor
• IOPL — integrated open-problem list
• GR — Ground Rule
• HDRR — high-data-rate recorder
• LAM — Low-Altitude Mission
• DAT — direct-ascent threat
• BPS — Boost Propulsion System
• FR — Flash Report
• JC — Job card
• SAS — Shuttle Avionics System
• SNIP — Space Network Implementation Plan
• MOSTT — mosaic optical sensor technology test bed
• BB — BrassBoard
• SMA — S-Band Multiple Access
• JIR — Job Improvement Request
• INS — Integrated Network Services
• SIC — Support Identification Code
• OD — Operations Directive
• GSSF — General Service Stock Fund
• LHRCS — left-hand reaction control system
• LOFAR — low-frequency acquisition and ranging
• IPSL — Interface Problem Status Log
• HPFTP — high-pressure fuel turbopump
• LPOTP — low-pressure oxidizer turbopump

• RE — Recurring Engineering
• LR — Lunar Rendezvous
• HOLAB — holographic laboratory brassboard
• II — implementing instruction
• RER — Receive Echo Request
• LDZ — Lithium-Depleted Zone
• LOSHEA — line-of-sight hard Earth angle
• OCT — Optical Communications Technologies
• RM — Review Manager
• IMUPLM — inertial measurement unit prelaunch monitor
• BV — Balanced Voltage
• HPBRM — high payload baseline reference mission
• LSFR — launch site flow review
• HSP — high-speed printer
• LFAP — low-frequency accelerometer pogo
• LCUG — liquid cooling undergarment
• HEOS — high endo designator sensor
• MSDOS — Mass Storage Digital Operating System
• LBS — L-band subsystem
• MAVEN — Mars Atmosphere and Volatile Evolution Mission
• CRALT — CNES Radar Altimeter
• PRG — Program and Resources Guidance
• LMP — List Measurement Point
• MS — Mars Surveyor
• MOSR — Mission Operations Support Requirement
• LOC — Loss of Crew
• CINCNORAD — Commander-In-Chief, North American Aerospace
• GRS — Global Receiving System
• CS — Constellation Systems
• RPS — Record and Playback Subsystem
• KELV — KKV/ESM launch vehicle
• NS — Netscape Navigator
• MS — Mission System
• GR/AL — graphite-aluminum
• IWP — Indirect Work Package
• LOCS — Local Optical Correction System
• PMB — Program Management Budget
• LLI — limited-life item
• JEA — joint-endeavor agreement
• MECLSI — mission equipment configuration launch site installation
• PCS — Personal Communication Service
• PDF — Portable Date File format
• OSO — Operations Services Office
• CC — Configuration Control
• LBDT — low-bay dolly tug
• MNEE — mission nonessential equipment
• NSD — Network Services Division
• CDC — Collins Defense Communications
• ME — Memory Effect
• GNIC — G&N indicator control

• BAF — Barnes Absorption Filter
• MFSP — macrofunction signal processor
• HSDL — high-speed data line
• TIP — Transition and Implementation Planning
• LCD — Launch Countdown
• MMUS — Mass Memory Unit Simulator
• PI — Program Integration
• ISM — Image Steering Mirror
• LAW — low-altitude weapon
• MN — main bus
• HSS — high stress/strain
• KOSC — Kennedy Operations Support Center
• TDS — Tracking Data System
• CAL — canister airlock
• MPA — Metric Processor Assembly 
• DPP — deployment/pointing panel
• LDEF — long-duration exposure facility
• HSR — High Sample Rate
• IPP — Innovative Partnership Program
• PSR — Physical Sciences Research
• BD — Binary Discrete
• LANES — III LAN extensible simulator
• PCC — Permanent Consultative Committee
• PI — Program Introduction
• TR — Transition Review
• K/S — Kick Stage
• IOP — Ignition Over Pressure
• MIMOSA — Mission Modes And Space Analysis
• HVSF — Honeywell Verification Simulation Facility
• LFRR — low-frequency radio range
• SDO — Space Discovery Office
• MSDP — Mission System Distribution Panel
• ME — Mission Engineering
• IMC — image motion compensation
• SSO — Source Selection Official
• ICC — Integrated Computer Complex 
• LVSG — Launch Vehicle Study Group
• IOBPS — input/output box and peripheral simulator
• LH — Left-handedness
• GSTAR — Saudi Arabian communications satellite
• TAP — Tracking Acquisition Processor
• HEOR — Historical Event Operation Record
• LFAF — low-frequency accelerometer flutter
• NISN — NASA Information System Network
• SSC — Swedish Space Corporation
• USS — User Services System
• MOLFLUX — molecular flux
• LIB — Left Inboard
• IWFS — Integrated Waste Fluid System
• SPS — Service Planning Segment

• PSS — Platform System Services
• CCP — Change Control Package
• NOC — Networks Operations Center
• LPFT — Low-Pressure Fuel Turbopump
• SSF — Support Service Facilities
• LACIE — large-area crop inventory experiment
• TIP — Things in Progress
• IOD — Initial Orbit Determination
• SMD — Science Mission Directorate
• LOGMOD — logic model
• NM — Next Month
• LAS — Low-Altitude Sensor
• GPSCP — GPS computer program
• TDS — Time Distribution System
• DC — Differential Corrections
• MSR — Monthly Status Reviews
• SMA — Scan Mirror Assembly
• LTVC — Linear Terminal Velocity Constraint
• EXCABL — expert cable
• ICC — Intercenter Computer Complex
• JISWG — Joint Integrated Simulation Working Group
• TMP — Technology Management Plan
• LAM — Laser Altimetry Mission
• CC — Commercial Control
• MPA — Metric Pointing Assembly
• SCS — Specialized Customer Services
• PLC — Postlanding Communications
• LSSE — Laser Sensor Support Equipment
• LSD — Logistics Support Depot
• MSOIN — Minor Subcontractor Or IDWA Notification
• TMP — Travel Manager Plus
• MFO — Major Function Overlay
• SRB — Standing Review Board
• LEP — large external pressurized
• MSSTP — Military Space Systems Technology Plan
• IMUGSE — IMU ground support equipment
• MFTIO — Minimum Flyout Time For Orbital Interception
• CC — Compatibility Change
• SC — Spacecraft
• PCN — Page Change Notice
• SC — Security Critical
• PRA — Probabilistic Risk Analysis
• DPI — Detail Program Interrelationship
• GS — Goldstone
• SSE — Space Science Enterprise
• NWAG — NASA Wireless Advisory Group
• FOS — Flight Operations System
• CSO — Chief S&MA Officer
• MOC — Mission Operations Complex
• PSM — Power Slice Module

• MPG — Multipoint Grounding
• LR — Lunar Relay
• POC — Payload Ops Center
• BOP — Basic Overall Polarity
• SC — Space Communications
• SOS — Science on a Sphere
• HOFCO — horizontal functional checkout
• ISP — Inertial Sun-Point
• SOC — Science Operations Coordination
• PSE — Programmable Serializer Equipment
• PPS — Packet Processing System
• TSA — Telemetry Simulator Assembly
• LPS — Landsat-7 Processing System
• RER — Radar  Extimated Rain
• SSA — Symbol Synchronizer Assembly
• SA — Spacecraft Adapter
• SCM — Space Operations Commercialization Manager
• RM — Requirement Manager
• PIP — Premium Internet Protocol
• MDM — Metadata Manager
• PRA — Project Reporting Attribute
• GL — Government Led
• SC — Statement of Capability
• PSE — Program Systems Engineering
• GRD — Ground Detector
• CAS — computer airspeed
• TTR — TDRSS Trouble Report
• ICL — Interface Control Layout
• MMS — Magnetospheric Multiscale Satellite
• SMC — Sensor Management Council
• DES — Distributed Evaluation System
• TR — Transition Readiness
• NSF — Network Support Facilities
• MMCCB — Multimission Change Control Board
• GPA — general-purpose amplifier
• SMC — Strategic Management Council
• MSM — Mission and Science Measurement Technology
• MSBLS-GS — MSBLS Ground Station
• MOL — Mission Operations Link
• MINISAT — Spanish Satellite
• SCR — SOMO Change Request
• TA — Task Agreements
• IOP — Interoperability Plenary
• HH — handhold
• NIS — NOCC Information Server 
• STP — SCaN Transition Plan
• OC — Optical Character
• IO — industral operations
• SCS — Scan Correlated Shift
• MSL — Mission Support LAN

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