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Scientific & Educational >> Astronomy Abbreviations

Look through 3189 acronyms and abbreviations related to Astronomy:

• IMHO — In My Humble Opinion
• HIV — Human Immunodeficiency Virus I
• PPNE — Proto-Planetary Bebulae
• LAN — Local Area Network
• PNX — Pulsar Network Exchange
• ETA — Estimated Time of Arrival
• HIPAA — Health Insurance Portability and Accountability Act of 1996
• ROM — Read-Only Memory
• AHRQ — Agency for Health, Research, and Quality
• A&AT — Astronomical and Astrophysical Transactions
• FTP — File Transfer Protocol
• MM — Millimeter
• WAXD — Wide-Angle X-Ray Diffraction
• PIFOV — Planet In Field Of View
• LASER — Light Amplification By Stimulated Emission Of Radiation (cf. Maser)
• A&ARV — Astronomy and Astrophysics Review
• JAAVSO — Journal of the American Association of Variable Star Observers
• B-V — Binary - Variable star
• E&PSL — Earth and Planetary Science Letters
• ASAP — As Soon As Possible (pronounced AY-sap)
• ANSI — American National Standards Institute, Inc.
• ZAND — Z ANDromedae
• NHLBI — National Heart, Lung, and Blood Institute
• LUNNO — Lunar Upper Navigation Nacelle Orb
• COBRAS-SAMBA — Cosmic Background Radiation Anisotropy Satellite / Satellite for Measurement of Background Anisotrop
• MADOO — Madras Observatory Astronomical Observations
• QJRAS — Quarterly Journal of the Royal Astronomical Society
• R&QA — Reliability & Quality Assurance
• CPU — Central Processing Unit
• JASEG — Journal of the Astronomical Society of Egypt
• ZEPLIN — ZonEd Proportional scintillation in LIquid Noble gases
• M&PS — Meteoritics and Planetary Science
• P&SS — Planetary and Space Science
• P/SOS — Payload/Spacecraft Operations Simulator
• A — Ampere
• SADE-1 — Solar Array Deploy Electronics-11
• ICD — Interface Control Document
• AIAA — American Institute of Aeronautics and Astronautics, Inc.
• PALLO — Publications of the Allegheny Observatory of the University of Pittsburgh
• BTW — By The Way
• P-E — Perkin-Elmer Corporation
• SAAOC — South African Astronomical Observatory Circular
• PABEI — Progress in Astronomy
• WASOA — Washburn Observatory Astrophysics
• ☿ — Mercury
• DAOAR — Dominion Astrophysical Observatory Annual Report
• XEUS — X-Ray Evolving Universe Spectroscopy Mission
• BAICZ — Bulletin of the Astronomical Institutes of Czechoslovakia
• RF — Radio Frequency
• JALPO — Journal of the Association of Lunar & Planetary Observers

• JAPAS — Journal of Astrophysics and Astronomy Supplement
• CDR — Critical Design Review
• F&CRE — Flower and Cook Observatory Reprints
• WHO — World Health Organization
• WWW — World Wide Web
• ISO — International Organization for Standardization
• QC — Quality Control
• CCB — Configuration Control Board
• E-ELT — European Extremely Large Telescope
• LAMOST — Large sky Area Multi-Object fiber Spectroscopic Telescope
• VATOP — Vatican Observatory Publications
• IP — Internet Protocol
• MADOB — Madras Observatory Observations
• PDR — Preliminary Design Review
• UFO — Unidentified Flying Object
• AFAIK — As Far As I Know
• PADEU — Publications of the Astronomy Deparment of the Eotvos Lorand University
• COB — close of business (End of duty day)
• CSA — Canadian Space Agency
• AA&AA — Astronomy and Astrophysics Abstracts Heidelberg
• LAD-C — Large Area Debris Collector
• PPM — parts per million
• SAR — Search And Rescue
• EAPSNET — East-Asian Planet Search Network
• FYI — For Your Information
• JAPOA — Japan Amateur Photoelectric Observers Association
• ESA — European Space Agency
• ROM — Rough Order of Magnitude
• CY — Calendar Year
• EEO — Equal Employment Opportunity
• GO — General Observer
• MOA — Memorandum Of Agreement
• BTU — British Thermal Unit
• EOF — End Of File
• CV — Curriculum Vitae
• CD — Compact Disc
• RFP — Request For Proposal
• CBO — Congressional Budget Office
• FIFO — First In, First Out
• CKSM — checksum
• GATT — General Agreement on Tariffs and Trade (government)
• ROI — Region of Interest
• FOV — Field Of View (satellite)
• DOT — Department of Transport
• ELV — Expendable Launch Vehicle
• MOU — Memorandum of Understanding (an MOU between Food & Drug Administratin and a regulatory agency in another country allows mutual recognition of inspections)
• R&D — Research & Development
• ASTM — American Society for Testing and Materials (Philadelphia, Pennsylvania)
• NFS — Network File System
• USAF — United States Air Force

• MB — Megabyte
• MRI — Magnetic Resonance Imaging
• N/A — Not Applicable
• AHU — Air Handling Unit
• AU — Astronomical Unit
• APU — Auxiliary Power Unit
• ASCII — American National Standard Code for Information Interchange
• STS — Space Transportation System
• URL — Universal Resource Locator
• EST — Eastern Standard Time
• MTBF — Mean Time Before Failure
• NCCLS — National Committee for Clinical Laboratory Standards
• ADP — Automated Data Processing
• DEC — Digital Equipment Corporation
• WAN — Wide Area Network
• MPH — Miles Per Hour
• LTE — Local Thermodynamic Equilibrium
• CRS — Congressional Research Service
• COSPAR — Committee on Space Research (ICSU)
• ADS — Astrophysics Data System
• PT — Physical Therapy
• DDL — Data Definition Language
• PHP — Planetary Horizontal Platform
• SIR — Shuttle Imaging Radar
• RAM — random-access memory
• IFOV — Instantaneous Field Of View
• DMSP — Defense Meteorological Satellite Program (U.S.)
• HEAO — High Energy Astronomy Observatory
• HMO — Health Maintenance Organization
• SCSI — Small Computer System Interface
• EU — European Union (1994; formerly referred to as the EEC or EC)
• GPS — Global Positioning System (ex-NAVSTAR)
• MRB — Material Review Board
• VHF — Very High Frequency
• AAS — American Astronomical Society
• NSO — National Solar Observatory
• CRT — Cathode Ray Tube (type of TV)
• ACE — Advanced Composition Explorer
• OPD — Outpatient Department
• JAXA — Japan Aerospace Exploration Agency
• OSO — Orbiting Solar Observatory
• GMP — Good Manufacturing Practice
• ACS — American College of Surgeons
• SQA — Software Quality Assurance
• TBD — To Be Determined
• CM — Centimeter
• CRO — Contract Research Organization
• KG — Kilogram
• SN — Space Network
• ACRIM — Active Cavity Radiometer Irradiance Monitor (EOS)

• CEN — Committee European de Normalisation
• PAH — Polycyclic Aromatic Hydrocarbon
• DME — Durable Medical Equipment
• I/O — Input/Output
• MIS — Management Information System (OSHA)
• FTA — Fault Tree Analysis
• DOD — United States Department of Defense
• FFT — Fast Fourier Transform
• RPM — Revolutions Per Minute, (Rotations Per Minute)
• MHZ — Megahertz (Megacycles Per Second)
• NM — Nanometer
• ISRO — Indian Space Research Organisation
• BAT — Burst Alert Telescope
• FAR — Flight Acceptance Review
• FAQ — Frequently Asked Questions (sometimes Pronounced Fak)
• CM — Configuration Management
• DC — Direct Current
• LEO — Low Earth Orbit (satellite communications)
• ISF — Industrial Space Facility
• UHF — Ultra High Frequency (300-3000 MHz; 1m-10cm)
• NSF — National Sanitation Foundation
• SIG — Special Interest Group
• HCFA — Health Care Financing Administration
• LOS — Line Of Sight
• BAE — British Aerospace Systems, LTD
• SISEX — Shuttle Imaging Spectrometer Experiment
• M — Meter
• AARP — American Association of Retired Persons
• QA — Center for Quality Assurance in International Education
• ISO — Infrared Space Observatory
• CAP — College of American Pathologists
• DCC — Document Control Center
• SDD — Software Design Document
• O&M — Operation and Maintenance
• PPO — Preferred provider organization
• SOW — Statement Of Work
• NEC — National Electrical Code
• BMA — British Medical Association
• CRF — Case Report Form
• FORTRAN — FORmula TRANslation (a computer language)
• CFR — Code of Federal Regulations
• ADF — Astrophysics Data Facility
• FY — Fiscal Year
• FOS — Faint Object Spectrograph
• FDA — Food Drug Administration
• ROI — Return on Investment
• LOE — Level Of Effort
• IRB — Institutional Review Board
• APS — American Physical Society
• AJ — Astronomical Journal

• TV — Television
• HIV — Hair Is Vanishing. Amusing alternative interpretation (thanks EP) contrasting with the seriousness of the more usual meaning of Human Immunodeficiency Virus.HIVIHusband Is Village Idiot. (ODSA) Classic nurses' shorthand.
• NSA — National Security Agency
• RFI — Radio Frequency Interference
• FM — Flight Model
• AMU — Atomic Mass Unit
• BCD — Binary-Coded Decimal
• CHSAJ — Chinese Society of Astronautics Journal
• LOR — Lunar Orbit Rendezvous
• ISS — International Space Station
• NAI — No Action Indicated (Most Favorable Food & Drug Administration Post-inspection Classification)
• HV — High Voltage
• SAS — Small Astronomy Satellite
• AOCS — Attitude and Orbit Control System
• OTA — Optical Telescope Assembly
• NIOSH — National Institute for Occupational Safety and Health
• AAAS — American Association for the Advancement of Science
• NAS — United States National Academy of Sciences
• HOPPS — Hospital Outpatient Prospective Payment System
• JSC — Johnson Space Center (Houston, TX)
• CW — Clockwise
• CHJAA — Chinese Journal of Astronomy and Astrophysics
• GMT — Giant Magellan Telescope
• MSFC — Marshall Space Flight Center (Huntsville AL)
• NIST — National Institute of Standards and Technology
• AAMI — Association for the Advancement of Medical Instrumentation
• A&A — Astronomy and Astrophysics
• DOE — United States Department of Energy (government)
• A/N — Alphanumeric
• UCL — University College London
• CEMDA — Celestial Mechanics and Dynamical Astronomy
• FF — Flat Field
• A&G — Astronomy and Geophysics
• GR — General Relativity
• ADIL — Astronomy Data Image Library
• HZ — cycles per second (hertz)
• SF — Science Fiction
• SPR — Software Problem Report
• K — Kilo-
• LED — law enforcement desk; light emitting diode
• AAMC — American Association of Medical Colleges
• JPL — Jet Propulsion Laboratory (California Institute of Technology) (NASA)
• AMA — American Medical Association
• SCA — Shuttle Carrier Aircraft
• FD — Flight Day
• ADA&A — Advances in Astronomy and Astrophysics
• LOI — Lunar Orbit Insertion
• SRL — Space Radar Laboratory
• DAR — Defense Acquisition Regulation
• BHB — Black Hole Bang

• BER — Bit-Error Rate
• BASD — Ball Aerospace Systems Division
• STR — Software Test Report
• DMA — direct memory access (computer term)
• CSTC — Consolidated Space Test Center
• HF — High Frequency
• COBE — Cosmic Background Explorer Satellite (NASA)
• COMSP — Commercial Space
• IAU — International Astronomical Union
• FTE — Full-Time Employee
• MS — Millisecond
• HQ — Headquarters (HDQ Preferred)
• CPI — Continuous Process Improvement
• NAM — National Association of Manufacturers
• OS — Operating System
• SME — Solar Mesosphere Explorer
• NOAA — National Oceanic and Atmospheric Administration (US)
• TLA — Three Letter Abbreviation
• HR — HUMAN RESOURCES
• RPM — Resale Price Maintenance. The UK Net Book Agreement, as was. Means by which retail prices are controlled by primary suppliers. (Alternatively, Revolutions Per Minute, as in engine speed and 78, 33 and 45 records. In years to come how many people will know
• SNR — Signal-to-Noise Ratio
• CDM — Cold Dark Matter
• AHA — American Hospital Association
• OMB — Office of Management and Budget (U.S.)
• DUNRE — Dunsink Observatory Reprints
• ATO — Abort To Orbit
• DRS — Data Relay Satellite
• ALEXIS — Array of Low Energy X-ray Imaging Sensors
• DFRC — Dryden Flight Research Center
• IEC — International Electrotechnical Commission
• FTC — Federal Trade Commission (U.S.)
• CCAFS — Cape Canaveral Air Force Station, an air force base in Florida where NASA launches satellites from.
• ESAJ — European Space Agency Journal
• UTC — Coordinated Universal Time
• NEMA — National Electric Manufacturer's Association
• ADC — Analog-Digital Converter
• NASP — National Aerospace Plane
• OAI — Official Action Indicated (serious Food & Drug Administration post-inspection classification)
• RAS — Royal Astronomical Society
• BNSC — British National Space Centre
• IR — Infrared
• COTS — Commercial Off the Shelf Software
• APO — Apache Point Observatory
• CHJSS — Chinese Journal of Space Science
• ANS — Astronomical Netherlands Satellite
• WG — Working Group
• NASDA — National Space Development Agency of Japan
• PSI — Pounds Per Square Inch (Static Pressure)
• BPS — bits per second
• ABBOO — Abbadia Observatory Observations

• DOMSAT — Domestic Communications Satellite System
• GIF — Graphic Interchange Format
• ASC — Ambulatory Surgery Center
• MMS — Module Management System
• VLF — Very Low Frequency
• CCTV — Closed Circuit Television
• KHZ — kilohertz (1000 cycles per second)
• GAO — Government Accountability Office [formerly the General Accounting Office]
• PDP — Postinsertion Deorbit Preparation
• SSI — Space Studies Institute
• MOSPO — Mobile Satellite Photometric Observatory
• OSSE — Oriented Scintillation Spectrometer Experiment
• OSHA — Occupational Safety and Health Act (1970)
• EDO — Extended Duration Orbiter
• WP — Work Package
• CRC — Contrôle de Redondance Cyclique (French: Cyclic Redundancy Check)
• ALS — Advanced Launch System
• CHSST — Chinese Space Science Technology
• JILA — Joint Institute for Laboratory Astrophysics
• SRM — Solid Rocket Motor
• ST — Space Telescope
• ERBS — Earth Radiation Budget Satellite
• PR — Problem Report
• GEM — Giotto Extended Mission
• NBS — National Bureau of Standards (US)
• UV — Ultraviolet (Light)
• CASE — computer-automated software engineering
• SARA — Society of Amateur Radio Astronomers
• ND — NASA Document
• JSAR — Journal of Space Astronomy Research
• LARC — Langley Research Center (NASA)
• BUBES — Bulletin of the University of Besancon Observatory
• NRC — National Response Center
• DEC — Declination
• DUNOP — Dunsink Observatory Publications
• ISAS — Institute of Space and Astronautical Sciences (Japan)
• RISC — Reduced Instruction Set Computer
• IEEE — Institute of Electrical and Electronic Engineers, Inc.
• FU — Flight Unit
• CASJ — Canadian Aeronautics and Space Journal
• SI — Scientific Investigation
• PM — Project Manager
• MECO — Main Engine Cutoff
• CDRH — Center for Devices and Radiological Health (Food & Drug Administration)
• DBMS — Data Base Management System
• N — Newton
• NIH — NATIONAL INSTITUTE OF HEALTH
• DSCS — U.S. Defense Satellite Communications System
• SVD — Singular Value Decomposition
• GMT — Greenwich Mean Time (Zulu)

• EOY — End-Of-Year
• NORAD — North American Air Defense (Command)
• MOL — Manned Orbiting Laboratory
• NIST — National Institute of Standards & Technology (US)
• DFRF — Dryden Flight Research Facility
• ROSAT — Roentgen Satellite
• FITS — Flexible Image Transport System
• CITECH — Center for Information on Technology in Healthcare
• ASTRA — Advanced Star Tracker
• OIG — Office of Inspector General
• ESTEC — European Space Research and Technology Centre
• LANL — Los Alamos National Laboratory
• LM — Lunar Module
• EOL — End Of Line
• ST — Star Tracker
• BBF — Bursty Bulk Flow
• LCC — Launch Control Center (KSC)
• DSN — Deep Space Network - network of large antennas and communication facilities.
• GSFC — Goddard Space Flight Center (Greenbelt, MD)
• FAC — Facilities
• EUVE — Extreme Ultraviolet Explorer (NASA Satellite)
• CMB — Cosmic Microwave Background
• D — Diameter
• ASRM — Advanced Solid Rocket Motor
• POS — Point of Service Plan
• DIST — Distance
• RTLS — Return To Launch Site
• JOP — Jupiter Orbiter Probe
• RADAR — RAdio Detection And Ranging
• PR — Public Relations
• RSA — Russian Space Agency
• PDS — Planetary Data System
• D — Director
• GE — General Electric American Communications Inc.
• WMO — World Meteorological Organization (ICSU)
• ARMOL — Armagh Observatory Leaflet
• N — Nitrogen
• SIM — Simulator
• BASBR — Bulletin of the Astronomical Society of Brazil
• RMS — root mean square (preferred over "RMS")
• SST — States Supersonic Transport
• IUS — Inertial UPper Stage (was Interim UPper Stage)
• SUMS — Shuttle Upper Atmosphere Mass Spectrometer
• TANSTAAFL — There Ain't No Such Thing As A Free Lunch (coined By Author Robert A. Heinlein In His The Moon Is A Harsh Mistress)
• JANSC — Journal of Astronautical Sciences
• PHRMA — Pharmaceutical Research and Manufacturers of America (formerly PMA, Pharmaceutical Manufacturers Association)
• EDT — Eastern Daylight Time
• TAG — Technical Advisory Group for Biological Control Agents of Weeds
• CG — Center of Gravity (DXS)
• MMDA — Michigan Medical Device Association

• KSC — John F. Kennedy Space Center
• ASQ — Alpha System Qualification
• ROTFL — Roll On The Floor Laughing
• AMPS — Atmospheric Magnetospheric Plasma System
• DC — Delta Clipper
• CHIME — College of Healthcare Information Management Executives
• CASJQ — Canadian Aeronautics and Space Journal Quarter
• NAFTA — North American Free Trade Agreement
• USP — United States Pharmacopeia
• ERS — Earth Resources Satellite
• IPA — Individual Practice Association
• FRR — Flight Readiness Review
• NASA — National Aeronautics and Space Administration (US)
• ASCA — Advanced Satellite for Cosmology & Astrophysics
• RSN — Real Soon Now [which may be a long time coming]
• AGB — Asymptotic Giant Branch
• ESDAC — European Space Data Center
• USGS — United States Geological Survey (DOI)
• LGA — Low Gain Antenna
• ARC — Ames Research Center (NASA)
• TM — Telemetry
• TES — Thermal Emission Spectrometer
• SLAR — Side-Looking Airborne Radar
• PPARC — Particle Physics and Astronomy Research Council
• IIRC — If I Recall Correctly
• HD — Hilary Duff
• SNII — SuperNova of Type II
• HSP — High Speed Photometer
• DSMB — Data Safety Monitoring Board
• CCD — Charge Coupled Device - a device for the movement of electrical charge.
• AO — Adaptive Optics
• LMSS — Lunar Mapping and Survey System
• IDE — Investigational Device Exemption
• TNM — The New Millenium
• LEM — Lunar Excursion Module
• PCM — Pulse-Code Modulation
• ESRO — European Space Research Organisation
• APJS — Astrophysical Journal Supplement Series
• RTG — Radioisotope Thermoelectric Generator
• SSID1 — Soviet Space Insertion Diverter One
• SSME — Space Shuttle Main Engine
• MGMA — Medical Group Management Association
• KB — Kilobyte: One thousand and twenty-four bytes kbps kilo bit per second
• ECSS — European Cooperation for Space Standardization
• AURA — Association of Universities for Research in Astronomy, Inc.
• MTPE — Mission To Planet Earth
• AFSD — Air Force Space Division
• SDR — System Design Review
• TARDIS — Time And Relative Dimensions In Space. Dr Who's company car, so to speak. I can confirm that it is 'Dimensions' not 'Dimension'. This begs the follow-up question as to whether the Dimensions are relative to each other or to time, or to both, or to somethi
• NASM — National Air and Space Museum

• NSP — NASA Support Plan
• UPS — Uninterruptible Power Supply
• MMU — Manned Maneuvering Unit
• MIT — Massachusetts Institute of Technology (U.S.)
• ASI — Agenzia Spaziale Italiana
• FAT — File Allocation Table
• MITI — Ministry of International Trade & Industry (Japan)
• BOD — Board of Directors (Budget)
• CHIPS — Cosmic Hot Interstellar Plasma Spectrometer
• AW&ST — Aviation Week & Space Technology
• INS — Inertial Navigation System
• DMERC — Durable Medical Equipment Regional Carrier
• CFA — Harvard-Smithsonian Center for Astrophysics, USA
• CTE — Charge Transfer Efficiency
• AREG — Astronomical Register
• IUE — International Ultraviolet Explorer
• LRB — Liquid Rocket Booster
• MEM — Meteoroid Exposure Module
• NRL — Naval Research Laboratory
• AT — Acceptance Test
• LPS — Launch Processing System
• LBNL — Lawrence Berkeley National Laboratory (US)
• GHZ — Gigahertz
• R/T — Real Time
• CASS — Center for Advanced Space Studies
• ABHI — Association of British Health-Care Industries
• DIN — Deutsches Institut für Normung.
• BAO — Beijing Astronomical Observatory
• ANEDI — Annals of the Royal Observatory, Edinburgh
• EC — European Community
• SAO — Smithsonian Astrophysical Observatory
• RCS — Radar Cross Section
• OSCAR — Orbiting Satellite Carrying Amateur Radio
• SPARTAN — Shuttle Pointed Autonomous Research Tool for Astronomy
• NASAL — NASA Circular Letter
• S/N — Serial Number
• PM — Pressurized Module
• MCO — Mars Climate Orbiter
• AG — Astronomische Gesellschaft
• GSC — Guide Star Catalog
• COSTAR — Corrective Optics Space Telescope Axial Replacement
• HHS — Health and Human Services Department
• ORIG — Origin
• CMP — Competitive Medical Plan
• NSSDC — National Space Science Data Center (Greenbelt, MD)
• NASAR — NASA Reference Publication
• WET — Whole Earth Telescope
• ACMAN — Astronomical Contributions from the University of Manchester
• OSS — Office of Space Sciences
• DD — Deputy Director

• CEMEC — Celestial Mechanics
• APL — Applied Physics Laboratory (at Johns Hopkins)
• AOA — Angle Of Attack
• TAC — Telescope Allocation Committee
• SSTO — Single-Stage-to-Orbit
• BH — Black Hole
• NCOS — National Commission on Space
• AXAF — Advanced X-Ray Astrophysics Facility
• APJ — Astrophysical Journal
• ESRIN — European Space Research Institute
• BAA — British Astronomical Association
• HP — Hewlett Packard's
• EU — Expanded Universe
• PRAES — Progress in Aerospace Sciences
• SPVW — Spaceview
• OPF — Orbiter Processing Facility
• CAPS — Cassini Plasma Spectrometer
• GTO — Geostationary Transfer Orbit
• MFPE — Mission from Planet Earth
• PHASP — Physics and Astrophysics from Spacelab
• ASHP — American Society of Hospital Pharmacists
• JEM — Japanese Experiment Module
• ISU — International Space University
• NSI — NASA Science Internet
• RVU — Relative Value Unit
• POEM — Polar-Orbiting Earth Mission
• CHARA — Center for High Angular Resolution Astronomy
• UT — University of Texas
• MMI — Man-Machine Interface
• ADSPR — Advances in Space Research
• NASAS — NASA Special Publication
• CDT — Connaissance Des Temps
• ACICH — Astronomical Circular
• SA — Solar Array
• WAIS — Wide Area Information Server
• ASM — American Society for Microbiology
• GCP — Good Clinical Practice
• COKON — Commmunications of the Konkoly Observatory Hungary
• CRAF — Comet Rendezvous/Asteroid Fly-by
• EBCI — Eclipsing Binaries Circulars
• MOA — Microlensing Observations in Astrophysics
• ADS — Astrophysics Data Service
• FHST — fixed-head star tracker
• ZAHB — Zero-Age Horizontal Branch
• RA — Right Ascension
• ASPP — Atmospheric and Space Plasma Physics
• CQGRS — Classical and Quantum Gravity Supplement
• ASPRV — Astrophysics and Space Physics Reviews
• NASAC — NASA Conference Publication
• PROM — Programmable Read-Only Memory

• ATV — Automated Transfer Vehicle
• ROSA — Romanian Space Agency
• JRASC — Journal of the Royal Astronomical Society of Canada
• WFF — Wallops Flight Facility
• DUROO — Durham Observatory Observations
• STICA — Space Technology Industrial and Commercial Applications
• UT — Universal Time
• VBR — Variable Bit Rate (ATM)
• PPCAS — Publication of the Pomona College Astronomical Society
• AGU — American Geophysical Union
• COWRO — Contributions from the Wroclaw Astronomical Observatory
• CON — Certificate Of Need
• VMS — Virtual Memory System
• EIA — Extended Interaction Amplifier
• AE — Adverse Event
• MSX — Midcourse Space Experiment
• SAR — synthetic aperture radar (satellite)
• UL — Underwriters Laboratory
• MVM — Mariner Venus/Mercury
• AMS — American Meteor Society
• BTOK — Bulletin of the Tokyo Astronomical Observatory
• IPAC — Infrared Processing and Analysis Center
• MOC — Mars Observer Camera
• AIRCO — Air et Cosmos
• DSS — Deep Space Station
• WISE — Wide-Field Infrared Survey Explorer
• WGPSN — Working Group for Planetary System Nomenclature
• COCAM — Contributions from the Cambridge Observatory England
• PROE — Publications of the Royal Observatory of Edinburgh
• AP — Array Processor
• LASCO — Large Angle Spectrometric Coronograph
• MASER — microwave amplification by stimulated emission of radiation
• PASAU — Proceedings of the Astronomical Society of Australia
• AREPS — Annual Review of Earth and Planetary Sciences
• ASTD — Advanced Space Technology Division
• AACCS — Analytical Approach to Candidate Constellation Selection
• GHTF — Global Harmonization Task Force
• AEXPR — Astronomy Express
• SPART — Space Research and Technology
• ASA — Astronomical Society Of The Atlantic
• KM — Kilometer (1,000 meters)
• CDC — Centers for Disease Control
• BLOB — Binary Large Object
• COLPL — Communications of the Lunar and Planetary Laboratory
• LOX — Liquid Oxygen
• ADEPS — Advances in Earth and Planetary Sciences
• ASTHE — Astronomical Herald
• CDSF — Commercially Developed Space Facility
• OV — Orbital Vehicle
• HTH — Hope This Helps. Email abbreviation when replying to requests. Potentially counter-productive if the recipient doesn't understand what it means...

• GOES — Geostationary Operational Environmental Satellite
• VLSI — Very-Large-Scale Integration
• APH — Astroparticle Physics
• NRT — near real time
• AFSCN — Air Force Space Command network
• FIRSSE — Far Infrared Sky Survey Experiment
• VAI — Voluntary Action Indicated (Food & Drug Administration postaudit inspection classification)
• ADFRF — Ames-Dryden Flight Research Facility
• CPI — characters per inch
• ESOC — European Space Operations Center
• XRD — X-Ray Diffraction
• CMA — Chemical Manufacturers Association
• NABR — National Association for Biomedical Research
• BSI — British Standards Institution
• DYERE — Dyer Observatory Reprints
• MDI — Michelson Doppler Imager
• OSSA — Office of Space Sciences and Applications
• MHW — Ministry of Health and Welfare
• ADCBU — Astronomical Data Center Bulletin
• SEOS — Synchronous Earth Observation Satellite
• DEACO — Dearborn Observatory Contributions
• SRB — Solid Rocket Boosters
• ITU — Infrared Telescope Unit
• ORROE — Occasional Reports of the Royal Observatory, Edinburgh
• SDAC — Solar Data Analysis Center
• TEM — Transverse Electromagnetic
• VSOP — VLBI Space Observatory Program
• ETLA — Extended Three Letter Acronym
• RFNA — Red Fuming Nitric Acid
• EAA — Encyclopedia of Astronomy and Astrophysics
• RCS — Reaction Control System/Subsystem
• LEGRI — Low Energy Gamma-Ray Imager
• CQGRA — Classical and Quantum Gravity
• M&R — Maintenance and Refurbishment
• F — Degrees Fahrenheit
• ISO 14155 — Current Widely Accepted Standard
• ICE — International Cometary Explorer
• EPS — Encapsulated Postscript
• JASS — Journal of Astronomy and Space Sciences
• MMA — Minnesota Medical Association
• SPP — Solar Physics Payload
• APM — Attached Pressurized Module (a.k.a. Columbus)
• HIRA — Health Industry Representatives Association
• JAMA — Journal of the American Medical Association
• RALPH — Reduction and Acquisition of Lunar Pulse Heights
• NOAO — National Optical Astronomy Observatories (Tucson, AZ)
• ARISTOTELES — Applications and Research Involving Space Technologies Observing the Earth's Field from Low Earth Orbiting Satellite
• NIZRE — Nizamiah Observatory Reprints
• AMPS — Atmosphere, Magnetosphere & Plasmas in Space
• Z — Zenith

• ALPOJ — Association of Lunar and Planetary Observers Journal
• SSBUV — shuttle solar backscatter ultraviolet (radiometer)
• CRB — Change Review Board
• CM — Command Module
• COVVO — Contributions of the Van Vleck Observatory
• JD — Julian Date
• RAZEL — Range, Azimuth and Elevation
• DDCMP — Digital Data Communications Message Protocol
• ANLUN — Annals of the Observatory of Lund
• SPMAR — Space Markets
• PAM — Payload Assist Module
• MPL — Mars Polar Lander
• LCROSS — Lunar CRater Observation and Sensing Satellite
• FS — Far Side
• BPSK — binary phase shift keying
• BPI — bits per inch
• CV — Cataclysmic Variable
• SAPS — Sub Auroral Polarization Streams
• PRCO — Publications of the Riverview College Observatory
• MSFN — Manned Space Flight Network
• OVS — Observation of Variable Stars
• SPRBU — Space Research Bulgaria
• PHA — Physics And Astronomy
• JBAS — Journal of the British Astronomical Society
• NEODYS — Near Earth Objects Dynamic Site
• PHS — Public Health Service (U.S.)
• JBAA — Journal of the British Astronomical Association
• BASI — Bulletin of the Astronomical Society of India
• CADC — Canadian Astronomy Data Centre
• ESOAR — European Southern Observatory Annual Reports
• DUDOR — Dudley Observatory Reports
• LSR — Local Standard of Rest
• MCC — Mission Control Center (JSC)
• NDA — New Drug Application
• TCPA — Time for Closest Point of Approach
• BBXRT — Broadband XRay Telescope
• PASA — Publications of the Astronomical Society of Australia
• BKOAS — Bulletin of Korean Astronomical Society
• ANDUD — Annals of the Dudley Observatory
• ANHAR — Annals of Harvard College Observatory
• MHD — Magnetohydrodynamic
• PLICO — Publications of Lick Observatory
• ONRAS — Occasional Notes of the Royal Astronomical Society
• LHEA — Laboratory for High Energy Astrophysics
• SIDC — Sunspot Index Data Center
• ASTL — Astronomy Letters
• COBOS — Contributions from the Bosscha Observervatory
• EBS — Electron Bombarded Silicon
• NCI — National Cancer Institute, USA
• ESOSP — European Southern Observatory Scientific Preprints

• MNRAS — Monthly Notices of the Royal Astronomical Society
• PMUNO — Publications of the Munich Observatory
• ANMN — Antarctic Meteorite Newsletter
• PA — Popular Astronomy
• IRSA — Infrared Science Archive
• COMAP — Comments on Astrophysics
• USRA — Universities Space Research Association
• POMIC — Publications of Michigan Observatory
• MELOO — Melbourne Observatory Observations
• COROE — Communications from the Royal Observatory Edinburgh
• ANLOW — Annals of the Lowell Observatory
• JAC — Joint Astronomy Centre
• TTA — Time to Apogee
• SR — Special Relativity
• SLC — Space Launch Complex
• JDSO — Journal of Double Star Observations
• CIBAA — Circular of the British Astronomical Association
• TUV — Technische Uberwachungs-Vereine
• Z — Zulu (Greenwich mean time)
• EXA — Experimental Astronomy
• EVA — Extra-Vehicular Activity
• CIRCE — Confusion-limited Infrared Cosmology Explorer
• JAHH — Journal of Astronomical History and Heritage
• VAB — Vertical Assembly Building
• CRPL — Cosmic Ray Physics Laboratory
• AZ — Azimuth
• LF — Luminosity Function
• COSRE — Cosmic Research
• K — Kelvin (absolute temperature scale)
• IDL — Interactive Data Language
• TOMS — Total Ozone Mapping Spectrometer (satellite Instrument)
• SIM — Space Interferometry Mission
• BAAS — Bulletin of the American Astronomical Society
• NASO — North American Space Operations
• AMIA — The American Medical Informatics Association
• HST — Hubble Space Telescope
• PDREO — Publications of the Dresden Observatory
• AUJPA — Australian Journal of Physics Astrophysical Supplement
• ANCAP — Annals of the Cape Observatory
• SEDS — Students for the Exploration and Development of Space
• DOY — Day of Year
• E&S — Earth and Space
• IMBH — Intermediate-Mass Black Hole
• SDI — Strategic Defense Initiative
• AOA — Abort Once Around (shuttle Abort Plan)
• EUV — Extreme Ultraviolet Vertical
• ESO — European Southern Observatory
• AAVSO — American Association of Variable Star Observers
• FDR — Final Design Review
• COARM — Contributions from the Armagh Observatory

• FCPH — Fundamentals of Cosmic Physics
• NMI — Nautical Mile
• GPC — General Purpose Computer
• LLO — Low Lunar Orbit
• GLOMR — Global Low-Orbiting Message Relay
• ADVAMED — Advanced Medical Technology Association
• ANDEA — Annales of the Dearborn Observatory
• DAO — Dominion Astrophysical Observatory (Victoria, BC, Canada)
• PAAS — Publications of the American Astronomical Society
• APOD — Astronomy Picture of the Day
• MDD — Medical Device Directive
• PASJ — Publications of the Astronomical Society of Japan
• MWOAR — Mount Wilson Observatory Annual Report
• ASMT — American Society for Medical Technology
• CME — Coronal Mass Ejection (usually Sun)
• COLIC — Contributions of Lick Observatory
• K — Kilogram
• CHA&A — Chinese Astronomy and Astrophysics
• FWHM — Full Width at Half Maximum
• SERC — Science and Engineering Research Council
• DSSN — Delta Scuti Star Newsletter
• ARCHS — Archaeoastronomy Supplement
• ESOSR — European Southern Observatory Scientific Report
• PCA — Proportional Counter Array
• TIFF — Tag Image File Format
• ANS — Astro News Service
• ISY — International Space Year (1992)
• IRAJS — Irish Astronomical Journal Supplement
• ALAMO — Automated Lunar and Meteor Observatory
• AACC — American Association for Clinical Chemists
• APHA — American Pharmaceutical Association
• LBLRR — LBL Research Review
• COBRN — Contributions of the Public Observatory and Planetarium in Brno
• FSK — Frequency Shift Keying
• PN — Planetary Nebula
• OBC — Onboard Computer
• IUEEN — IUE ESA Newsletter
• ESABU — European Space Agency Bulletin
• OTV — Orbital Transfer Vehicle
• NEOIC — Near Earth Object Information Center
• PNAOJ — Publications of the National Astronomical Observatory of Japan
• CEA — Center for EUV Astrophysics
• ESIS — ESA Space Information Systems
• PLAST — Planetary Astronomy
• MERIS — Medium Resolution Imaging Spectrometer
• CO — Contracting Officer
• EEXSC — Earth and Extraterrestrial Sciences
• AAT — Anglo Australian Telescope
• USNO — United States Naval Observatory
• IRAJ — Irish Astronomical Journal

• COASP — Comments on Astrophysics and Space Physics
• MMT — Multiple Mirror Telescope
• STSCI — Space Telescope Science Institute
• PMANO — Publications of the Manila Observatory
• CIUO — Circular of the Union Observatory Johannesburg
• PCARS — Publication of COMU Astrophysics Research Center
• RECONS — Research Consortium on Nearby Stars
• CNB — Cosmic Neutrino Background
• ALPO — Association of Lunar and Planetary Observers
• LR — Long Radius
• SDIO — Strategic Defense Initiative Organization
• ASSU — Annual Scientific Supplement to Urania
• MECO — Magnetospheric Eternally Collapsing Object
• CSA — Canadian Standards Association (like UL)
• COSSE — Cosmic Search Summer
• CSC — Collection of Small Companies. Alternative interpretation (apparently used by staff) of the CSC company name, which properly stands for Computer Sciences Corporation. The 'Collection of Small Companies' version reflects CSC's operatianal structure, which
• CODDO — Communications from the David Dunlap Observatory
• PGLO — Publications of the Goethe Link Observatory
• AUASS — Arab Union for Astronomy and Space Sciences
• NCC — Network Control Center (GSFC)
• PDR — Photo Dissociation Region
• ID — IDentifier
• CARA — Center for Astrophysical Research in Antarctica
• ACRV — Assured Crew Return Vehicle
• COSKA — Contributions of the Astronomical Observatory Skalnate Pleso
• SETI — Search for Extraterrestrial Intelligence
• NASPY — North American Society of Electro Physiology and Pacing
• OAP — Odessa Astronomical Publications
• ISN — International Supernovae Network
• S/W — Software
• JCAP — Journal of Cosmology and Astro-Particle Physics
• VDU — Video Display Unit
• JIMO — Journal of the International Meteor Organization
• LPL — Lunar and Planetary Laboratory
• ATDRS — Advanced Tracking and Data Relay Satellite
• UPPAN — Uppsala Astronomical Observatory Annals
• AREP — Astronomy Reports
• JAD — Journal of Astronomical Data
• MVI — Microgravity Vestibular Investigation
• BCRAO — Bulletin Crimean Astrophysical Observatory
• NCAR — National Center for Atmospheric Research (US)
• SFR — Star Formation Rate
• CPAF — Cost Plus Award Fee (Type of Contract)
• JBRE — Jodrell Bank Reprints
• CAMRE — Cambridge Observatories Reprints
• JHAS — Journal for the History of Astronomy Supplement
• M&P — Materials and Processes
• RQQ — Radio Quiet Quasar
• SIMCAT — simulate observations using space catalog
• IDTF — Independent Diagnostic Testing Facility

• ESPI — European Space Policy Institute
• MDS — Medium Deep Survey
• NRAOR — National Radio Astronomy Observatory Reprints
• STO — Solar Terrestrial Observatory
• PDUFA — Prescription Drug User Fee Act (1992, U.S.)
• CBER — Center for Biologics Evaluation and Research
• SRD — Software Requirements Document
• CGRO — Compton Gamma-Ray Observatory
• CFF — Columbus Free Flyer
• SBNC — Small Bodies Names Committee
• ELT — Extremely Large Telescope
• G — Gravity
• BIO — Biotechnology Industry Organization
• ADIS — Astrophysics Data and Information Services
• WD — White Dwarf
• DOH — Department of Health (various countries)
• FAHS — Federation of American Health Systems
• MEPAG — Mars Exploration Program Analysis Group
• ARA&A — Annual Review of Astronomy and Astrophysics
• IOTA — International Occultation Timing Association
• MSSSO — Mount Stromlo and Siding Spring Observatories
• JAAME — Japanese Association for the Advancement of Medical Equipment
• NEWAR — New Astronomy Review
• IRAS — Infrared Astronomy Satellite
• MSSS — Maui Space Surveillance Site
• ADEC — Astrophysics Data Centers Executive Council
• MELAR — Melbourne Observatory Annual Report
• LM&SS — Lunar Mapping and Scientific Survey
• CARA — California Association for Research in Astronomy
• LICOB — Lick Observatory Bulletin
• TAC — Time Allocation Committee
• VSOLJ — Variable Star Observers League in Japan
• PBEIO — Publications of the Beijing Astronomical Observatory
• IQSY — International Quiet Sun Year
• IUENN — IUE NASA Newsletter
• CSBN — Committee for Small-Body Nomenclature
• OPAG — Outer Planets Assessment Group
• CIT — California Institute of Technology (Pasadena, CA)
• JASAC — Japan Astronomical Study Association Circulars
• ND — Neutral Density
• HCIS — Health Care Information System
• ADC — Astronomical Data Center
• OPM — Outer Planet Mission
• JBAN — Jodrell Bank Annals
• MCD — Minimum Cost Design
• COROT — Convection Rotation and Planetary Transits
• IPC — Interprocess Communication
• VDS — Vereinigung der Sternfreunde
• JASV — Journal of the Astronomical Society of Victoria Melbourne
• ISEE — International Sun-Earth Explorer

• A&AS — Astronomy and Astrophysics Supplement Series
• TDRSS — Tracking and Data Relay Satellite System
• UVS — Ultraviolet Spectrometer
• TPS — Thermal Protection System
• JKAS — Journal of Korean Astronomical Society
• ANSAO — Annals of the Astrophysical Observatory of the Smithsonian Institution
• PVVO — Publications of the Van Vleck Observatory
• CRARE — Cracow Observatory Reprints
• LAN — Local Apparent Noon
• PDDO — Publications of the David Dunlap Observatory
• FDLI — Food and Drug Law Institute
• CDS — Coronal Diagnostic Spectrometer
• IUEDAC — IUE satellite Data Analysis Center
• ASCRS — American Society of Cataract and Refractive Surgery's
• PVO — Pioneer Venus Orbiter
• WHT — William Herschel Telescope
• ECS — Environmental Control System (Subsystem)
• MASSMEDIC — Massachusetts Medical Device Industry Council
• LRSP — Living Reviews in Solar Physics
• KPNO — Kitt Peak National Observatory (Tucson, AZ)
• AAO — Anglo-Australian Observatory
• PCINO — Publications of the Cincinnati Observatory
• ARC — Astrophysical Research Consortium
• RAE — Radio Astronomy Explorer
• PERCO — Perkins Observatory Contributions
• JHIT — Joint Healthcare Information Technology Alliance
• NAOJ — National Astronomical Observatory of Japan
• HRI — High Resolution Imager
• EVN — European VLBI Network
• LOD — Length of Day
• LBT — Large Binocular Telescope
• VO — Virtual Observatory
• MMKMO — Memoirs Of The Kakioka Magnetic Observatory
• NAMN — North American Meteor Network
• LASS — large-amplitude space simulator
• IGM — Intergalactic Medium
• IAPM — International Association of Medical Prosthesis Manufacturers
• CHPA — Consumer Healthcare Products Association
• ONR — Office of Naval Research (U.S.)
• PPN — Proto-Planetary Nebula
• INDA — Investigational New Drug Application
• FTL — Faster Than Light
• VBO — Vainu Bappu Observatory
• CIRRIS — Cryogenic Infrared Radiance Instrument for Shuttle
• MM — Memory Module
• TMT — Thirty-Meter Telescope
• RSO — Resident Space Object
• OEJV — Open European Journal on Variable Stars
• RSNA — The Radiological Society of North America, Inc.
• AFGWC — Air Force Global Weather Central (U.S.)

• LPO — La Palma Observatory
• DSP — Defense Support Program
• WR — Western Range
• OSTA — Office of Space and Terrestrial Applications (US NASA; now OAST)
• RASC — Royal Astronomical Society of Canada
• TV — Thermal Vacuum
• VVORE — Van Vleck Observatory Reprints
• JHA — Journal for the History of Astronomy
• ASAIO — American Society for Artificial Internal Organs
• KCAO — Kumamoto Civil Astronomical Observatory
• TPF — Terrestrial Planet Finder
• SOT — Solar Optical Telescope
• S/N — Signal-to-Noise ratio
• ESTP — European Space Technology Platform
• SGF — SpaceGuard Foundation
• NRAO — National Radio Astronomy Observatory (Greenbank, WV)
• ATLAS — ACTIVITIES Atmospheric Laboratory for Applications and Science
• JAPA — Journal of Astrophysics and Astronomy
• HIAA — Health Insurance Association of America
• LAT — Large Area Telescope
• DSMA — Division of Small Manufacturers Assistance
• PAMELA — Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics
• SNAP — Supernova / Acceleration Probe
• WEBT — Whole Earth Blazar Telescope
• PSLV — Polar Satellite Launch Vehicle (Indian Space Research Organization; India)
• CMS — Correctional Medical Services
• COPER — Contributions of Perkins Observatory
• PCS — Pointing Control System
• GRC — Glenn Research Center
• SAAO — South African Astronomical Observatory
• TEP — Transits of Extrasolar Planets
• CCR — Cost-Charge Ratio
• TOKRE — Tokyo Astronomical Observatory Reprints
• AAOPR — Anglo-Australian Observatory Epping Preprint
• SST — Spectroscopic Survey Telescope
• RGO — Royal Greenwich Observatory
• TIE — Telescopes in Education
• EOS — Earth Observing System (U.S.)
• LPI — Lunar and Planetary Institute
• NEEDS — NASA end-to-end data system
• MRSR — Mars Rover Sample Return
• CL — Command Language
• ARKOD — Annual Report of the Kodaikanal Observatory
• SZA — Solar Zenith Angle
• IU — Interface Unit
• ISTEC — International Small Telescope Cooperative
• HRSA — U.S. Health Resources and Services Administration
• D — Directive
• IPEM — Institute of Physics and Engineering in Medicine
• WIMP — Weakly Interacting Massive Particle

• GLP — Good Laboratory Practice
• OASH — Office of the Assistant Secretary for Health
• PHA — Potentially Hazardous Asteroid
• APJL — Astrophysical Journal Letters
• NESSI — Near Earth Space Surveillance Initiative
• OG — Original Gravity
• PEPI — Physics of the Earth and Planetary Interiors
• S/C — Spacecraft
• JAXA — Japan Aerospace Exploration System
• CFC — Chloroflourocarbon
• LHA — Local Hour Angle
• COPRE — Copenhagen University Observatory Reprints
• SO/SI — space operations and scientific investigation
• IFA — Institute for Astronomy
• LH — Liquid Hydrogen
• MIAA — Medical Industry Association of Australia
• MAFI — Medical Alert Foundation International
• PSC — Point Source Catalog
• ISSRT — Israel Space Research and Technology Information Bulletin
• ECRI — Emergency Care Research Institute
• HIBCC — Health Industry Business Communications Council
• QSO — Quasar|Quasi-Stellar Object
• MS — Master Schedule
• RNAOJ — Report of the National Astronomical Observatory of Japan
• HIDA — Health Industry Distributors Association
• PSPRO — Publications of the Sproul Observatory
• UARS — Upper Atmosphere Research Satellite (NASA)
• GPE — Gravitational Potential Energy
• MMH — Monomethyl Hydrazine
• AO — announcement of opportunity
• CNSA — China National Space Administration
• SERAJ — Serbian Astronomical Journal
• ISBRV — International Space Business Review
• HIS — Health Information Systems
• NCSC — National Council of Senior Citizens
• SPOT — Satellite Pour l'Observation de la Terre (France)
• PLANEMO — Planetary Mass Object
• FIR — Far Infrared
• NERVA — Nuclear Engine for Rocket Vehicle Application
• MEV — Mars Excursion Vehicle
• CYSF — Cape York Space Facility
• USPHS — United States Public Health Service
• CU — Calibration Unit
• CEC — Commission of the European Communities ;
• DSSC — Deep Space Station Complex
• NSTL — National Space Technology Laboratories (NASA)
• EGRET — Energetic Gamma Ray Explorer Telescope
• NAS — Norsk Astronomisk Selskap
• LAC — Lockheed Aircraft Corporation
• LRO — Lunar Reconnaissance Orbiter

• SPIRE — Spectral Infrared Rocket Experiment
• ICH — International Conference of Harmonization
• SM — Secondary Mirror
• SUNY — State Universityrsity of New York
• PMT — Photo Multiplier Tube
• JBIS — Journal of the British Interplanetary Society
• MOTIF — Maui Optical Tracking and Identification Facility
• MTC — Man-Tended Capability
• PROPAC — Prospective Payment Assessment Commission
• SSRMS — Space Station Remote Manipulator System
• PSK — Phase Shift Key
• SEB — Systems Engineering Branch
• NRO — U.S. National Reconnaissance Office
• MJD — Modified Julian Date
• ANTOK — Annals of the Tokyo Astronomical Observatory
• AMANDA — Antarctic Muon And Neutrino Detector Array
• AR — Active Region
• SPAC — State Pharmaceutical Administration of China
• ODF — Orbit Determination Facility
• UW — University of Wisconsin
• CENELEC — European Committee for Electromechanical Standardisation
• VTVL — Vertical Takeoff Vertical Landing
• CLMA — Clinical Laboratory Management Association
• CATS — Cheap Access to Space
• GOES — Geostationary Orbiting Environmental Satellite
• NAHIT — National Alliance for Health Information Technology
• CD-ROM — compact disc-read only memory
• SPIRIT — Spatial Infrared Telescope
• HFMA — Healthcare Financial Management Association
• EFPIA — European Federation of Pharmaceutical Industries and Associations
• OHTA — Office of Health Technology Assessment
• DCT — Discrete Cosine Transformer
• POMIN — Publications of the Astronomical Observatory University of Minnesota
• LAPSS — Large-Area Pulse Solar Simulator
• PDA — Parenteral Drug Association
• PI — Principle Investigator
• ANOLL — Annals of the Private Observatory of Lucien Libert
• ASP — Astronomical Society of the Pacific
• HIMSS — Healthcare Information and Management Systems Society
• BBT — Big Bang Theory
• LSF — Line Spread Function
• NIR — Near Infrared
• EGG — Evaporating Gaseous Globule
• PC — Planetary Camera
• MTPPI — Medical Technology and Practice Patterns Institute
• SHA — Sidereal Hour Angle
• SO — Space Operations
• IDT — Investigation Definition Team
• JCAHO — Joint Committee on the Accreditation of Healthcare Organizations
• MOPH — Ministry of Public Health

• JCCT — Joint Commission on Commerce and Trade (US-China)
• RAA — Relative Azimuth Angle
• ICD-9-CM — International Classification of Diseases, 9th Edition
• MEDEC — Medical Devices Canada
• NUSTAR — Nuclear Spectroscopic Telescope Array
• MOS — Metal Oxide Semiconductor (FET Devices)
• SPICE — Survey Probe Infrared Celestial Experiment
• TIROS — Television InfraRed Observation Satellite (POES)
• OMS — orbital maneuvering system
• EUDRA — European Drug Regulatory Authorities Network
• UCLA — Harbor-University of California Los Angeles
• FIPS — Fast Imaging Plasma Spectrometer
• RAD — Radiant
• USNOC — United States Naval Observatory Circulars
• SEF — Space Environmental Facility
• ISTAHC — International Society of Technology Assessment in Health Care
• APC — Ambulatory Payment Class
• SDSS — Sloan Digital Sky Survey
• OAO — Orbital Astronomical Observatory
• PMC — Permanently Manned Capability (of Space Station)
• OARE — Orbital Acceleration Research Experiment
• AVSOM — American Association of Variable Stars Observers Monographs
• LLAGN — Low-Luminosity Active Galactic Nucleus
• STERE — Steward Observatory Reprints
• STOMS — Space Telescope Observatory Management System
• E — Earth
• JRASN — Journal of the Royal Astronomical Society of New Zealand
• HSQB — Health Standard and Quality Bureau
• DRG — Diagnosis-Related Groups
• SRON — Space Research Organization of the Netherlands
• SPED — Space Education
• UGC — Uppsala General Catalog
• SPPOL — Space Policy
• EPIC — Earth Polychromatic Imaging Camera
• TIMED — Thermosphere Ionosphere Mesosphere Energetics and Dynamics
• CFIT — Controlled Flight into Terrain
• SSI — Solid-State Imager
• RA — Regulatory Affairs
• COWAT — Contributions of the University of Waterloo Observatory
• NIGMS — National Institute Of General Medical Sciences (NIH)
• BHB — Blue Horizontal Branch
• SSPF — Space Station Processing Facility
• SRAG — Space Radiation Analysis Group
• AIPS — Astronomical Image Processing System
• STACC — Standard Telemetry And Communications Component
• QBO — Quasi-biennial Oscillation (atm.)
• CCAS — Cape Canaveral Air Station
• MEDGV — Germany's Medical Equipment Safety Law
• SYDOP — Sydney Observatory Papers
• VHT — Very High Temperature

• CPFF — Cost Plus Fixed-Fee
• ASCP — American Society for Clinical Pharmacology and Therapeutics
• FRC — Flight Research Center
• SDO — Scattered Disk Object
• UPPOR — Uppsala Astronomical Observatory Reports
• LLC — Limited Liability Partnership
• MEI — Medical Economic Index
• WRORE — Wroclaw Astronomical Observatory Reprints
• RGOO — Royal Greenwich Observatory Observations
• LAIRT — Large-Aperture Infrared Telescope
• DOAMS — distant-object attitude-measuring system
• ET — External Tank
• LAMMR — large-antenna multichannel microwave radiometer
• CBI — Confederation of British Industries
• ESAST — European Space Agency Scientific Technical Review
• MITTS — Mobile Igor Tracking Telescope System
• ICCD — Intensified Charge-Coupled Device
• NAG — Numerical Algorithms Group Inc.
• ATM — Apollo Telescope Mount (on Skylab)
• NAMES — National Association of Medical Equipment Services
• SNR — Super Nova Remnant
• POSS — Palomar Observatory Sky Survey
• MDDI — Medical Device and Diagnostics Industry
• ORA — FDA's Office of Regulatory Affairs
• PDR — Physician’s Desk Reference
• M — Messier
• MDMA — Medical Device Manufacturers Association
• SANS — Stellar Autonomous Navigation System
• NHIB — National Health Insurance Bureau (Taiwan)
• IES — Institute of Environmental Sciences
• FDAMA — FDA Modernization Act of 1997
• ASH — American Society of Hematology's
• DH — Data Handling
• OWL — Overwhelmingly Large Telescope
• SOLSTICE — Solar Stellar Irradiance Comparison Experiment
• SF — Square Foot
• NEAR — Near-Earth Asteroid Rendezvous
• DEM — Differential Emission Measure
• AU — Alternate Universe
• ROE — Royal Observatory, Edinburgh
• SSS — Spinning Sun Sensor
• HPB — Health Protection Board (Canada)
• BEV — Billion Electron Volts
• CSG — Council of State Governments
• INTEGRAL — International Gamma-Ray Astrophysics Laboratory
• MPEC — Minor Planet Electronic Circular
• MOSS — Market-Oriented Sector Selective
• DEED — Minnesota Department of Employment and Economic Development
• MIL-STD — Military Standard
• CHI — California Healthcare Institute

• PPRC — Physician Payment Review Commission
• UNOOSA — United Nations Office for Outer Space Affairs
• JET-X — Joint European Telescope for X-ray astronomy
• SUSIM — Solar Ultraviolet Spectral Irradiance Monitor
• WFC — Wide-Field Camera
• RSU — Rate Sensor Unit
• NLN — National League for Nursing
• AAONW — Anglo-Australian Observatory Epping Newsletter
• LS/ST — Light Shield/Star Tracker
• QSR — Quality System Regulation
• HUT — Hopkins Ultraviolet Telescope
• ETR — Eastern Test Range (ESME Preferred)
• DDORE — David Dunlap Observatory Richmond Hill Reprints
• PYUNO — Publications of the Yunnan Observatory
• ISM — Interstellar Medium
• AGPS — Assisted Global Positioning System
• RGB — Red Giant Branch
• VAB — Vehicle Assembly Building
• WAXS — Wide Angle X-ray Scattering
• SCP — Supernova Cosmology Project
• PST — Personal Solar Telescope
• MST — Mean Solar Time
• JETRO — Japan External Trade Organization
• SSDF — Space Science Development Facility
• DMF — Data Management Facility
• DIN — Deutsches Institut fur Normung
• GRO — Gamma Ray Observatory (NASA)
• IOLM — International Organization of Legal Metrology
• TOY — Time of Year
• AVSOQ — American Association of Variable Stars Observers Quarterly Reports
• AMDM — Association of Medical Diagnostics Manufacturers
• MTF — Modulation transfer function.
• RA — Research Assistant
• QSIT — Quality System Inspection Technique
• HIB — Health Insurance Bureau (Japan)
• CBR — Cosmic Background Radiation
• TOKAB — Tokyo Astronomical Bulletin
• AVSOA — American Association of Variable Stars Observers Abstracts
• SOHO — SOlar and Heliospheric Observatory
• PYERO — Publications of the Yerkes Observatory
• ECCLS — European Committee on Clinical Laboratory Standards
• TDRS — Tracking and Data Relay Satellites
• SG — Shattered Galaxy (game)
• EFCS — Earth-fixed coordinate system
• ASC — Agence Spatiale Canadienne
• CST — Constant-Separation Traversing
• JFMDA — Japan Federation of Medical Device Associations
• GHRS — Goddard High Resolution Spectrograph
• PVASO — Publications of the Vassar College Observatory
• STATS — star tracker alignment test set

• VLA — Very Large Array
• JGR — Journal of Geophysical Research
• DPS — Division for Planetary Sciences
• DG — Data Group
• DADS — Data Archive and Distribution System
• ASIM — American Society of International Medicine
• HTML — Hyptertext Markup Language
• MACHO — Massive Compact Halo Object
• SEM — space environment monitoring
• TTP — Time to Perigee
• IMDA — Independent Medical Distributors Association
• AASPP — Astrononomy and Astrophysics Series
• UHMW — Ultra High Molecular Weight
• AIMBE — American Insitute for Medical and Biological Engineering
• RVGSP — Reviews of Geophysics and Space Physics
• ASSA — Astronomical Society of South Africa
• LIGO — Laser Interferometer Gravitational-Wave Observatory
• SPIE — The Society of Photo-optical Instrumentation Engineers
• BAVSO — Bulletin of the American Association of Variable Stars Observers
• CCR — Configuration Change Request
• AGILE — Astro-rivelatore Gamma a Immagini Leggero
• MTI — Minnesota Technology Inc
• ROAN — Royal Observatory Annals
• PBRN — Publications of the Astronomical Institute of the University of Borneo
• GG — Gravity Gradient
• PPQA — Pre-Product Quality Assurance
• CEV — Crew Exploration Vehicle
• FOC — Faint Object Camera
• OHP — Observatoire de Haute-Provence
• PRO — Professional Review Organization
• MPS — Mission Planning System
• DCR — Document Change Request
• SIRTF — Shuttle InfraRed Telescope Facility
• PLR — Planetary Report
• EUV — Extreme Ultra-Violet 2
• STSKY — Star Sky
• SAC — Solar Array Carrier
• HOTOL — Horizontal Takeoff and Landing Launcher
• HGA — High Gain Antennae
• CEAB — Central European Astrophysical Bulletin
• M&P — Moon and Planets
• RAPS — Regulatory Affairs Professional Society
• HDIF — Health Care Data Interchange Format
• PERI — Pharmaceutical Education & Research Institute
• SPRRE — Sproul Observatory Reprints
• STMAP — Studies in Mathematical Physics
• TR — Tape Recorder
• BD — Bonner Durchmusterung
• PT — Pass-Through
• DNA — Digital Network Architecture

• MOTIE — Ministry of Trade, Industry, and Energy (Korea)
• SAC — Saguaro Astronomy Club
• USAFA — United States Air Force Academy
• PMA — Premarket Application
• XUV — Extreme Ultraviolet
• EBTC — Edison BioTechnology Center
• PAB — Publications of The Astrophysics Branch Ottawa
• MPBU — Minor Planet Bulletin
• PV — photovoltaic (solar)
• WILOO — Williamstown Observatory Observations
• PACS — Physics and Astronomy Classification Schemex
• VLBI — Very Long Baseline Interferometry
• APINV — Astrophysical Investigations
• EMDM — European Medical Device Manufacturer
• HRMS — High Resolution Microwave Survey (SETI, Project Phoenix)
• PWASO — Publications of the Washburn Observatory
• GRS — Gamma Ray Spectrometer
• LNSP — Lecture Notes and Supplements in Physics
• PAB — Pharmaceutical Affairs Bureau (Japan)
• PKAS — Publication of the Korean Astronomical Society
• RTK — Right-To-Know
• PISCO — Parallel Imager for Southern Cosmological Observations
• BATSE — Burst and Transient Source Experiment
• ADU — Astronomical Distance Unit
• AGN — Active Galaxy Nucleus
• COCIR — Coordination Committee of the Radiological and Electromedical Industries
• ATC — Absolute Time Command
• HEDIS — Healthplan Employee Data and Information
• IGY — International Geophysical Year (1 July 1957 - 31 December 1958)
• ADASS — Astronomical Data Analysis Software and Systems
• SOPH — Solar Physics
• EDMA — European Diagnostics Manufacturer's Association
• POVRO — Publications of the Owens Valley Observatory
• WMAP — Wilkinson Microwave Anisotropy Probe
• TECRV — Technology Review
• QE — Quantum Efficiency
• BIS — British Interplanetary Society
• POHEL — Publications of the Astronomical Observatory Helsinki
• SAA — South Atlantic Anomaly
• IOA — Institute Of Astronomy (Cambridge)
• SMDA — Safe Medical Devices Act (1990)
• MEDMARC — Medical Device Material Assurance and Reinsurance Company, Ltd.
• HCPCS — Health Care Common Procedure Coding System
• MDA — Medical Device Amendments
• TEA — Torque Equilibrium Attitude
• MEDSUN — Medical Device Surveillance Network
• IPA — Institute for Polyacryclate Sciences
• RTV — Room Temperature Vulcanizer
• MMAAR — Maria Mitchell Association Annual Report
• TCE — Thermal Control Electronics

• APPLE — Ariane Passenger Payload Experiment
• SI — Science Instrument
• POL — Physician's Office Laboratory
• CD — Cordoba Durchmusterung
• UADE — Unanticipated Adverse Device Effects
• MDC — Major Diagnostics Category
• NAHC — National Association of Home Care
• MMO — Mercury Magnetospheric Orbiter
• SST — Space Surveillance and Tracking
• MNBIO — Minnesota Biotechnology
• ROUS — Rodents Of Unusual Size
• DWE — Doppler Wind Experiment
• GEO — Geosynchronous Earth Orbit
• SPAN — Space Physics Analysis Network
• NMDC — National Medical Device Coalition
• XRT — X-Ray Telescope
• S&T — Sky & Telescope
• AAAD — Amateur Astronomers Association Delhi
• PFAO — Publications of the Flower Astronomical Observatory
• DSNPR — Deep Space Network Progress Report
• IFCC — International Federation of Clinical Chemists
• SIRTF — Space Infrared Telescope Facility
• ADSAC — Advanced Series in Astrophysics and Cosmology
• QTG — Quantum Theory of Gravity
• MMRAS — Memoirs of the Royal Astronomical Society
• ODB — Operations Data Base
• TGF — Terrestrial Gamma-Ray Flash
• ERF — Energy Rejection Filter
• IDA — International Dark-Sky Association, Inc.
• PLAWO — Publications of Laws Observatory
• SM — Standard Model
• FPA — Floating Point Accelerator
• AEDRV — Astronomy Education Review
• RGOB — Royal Greenwich Observatory Bulletin
• VMS — Vertical Motion Simulator
• FQR — Flight Qualification Review
• PDAO — Publications of the Dominion Astrophysical Observatory
• MPO — Mercury Planetary Orbiter
• HZ — Habitable Zone
• MTSRE — Mount Stromlo Observatory Reprints
• CTB — Cargo Transfer Bag
• WR — Wolf-Rayet Star
• ATEL — Astronomer's Telegram
• MODIS — Moderate Resolution Imaging Spectroradiometer
• OCC — Operations control center
• NACA — National Advisory Committee on Aeronautics
• MMASI — Memoirs of the Astronomical Society of India
• LGM — Little Green Men
• EGRET — Energetic Gamma Ray Experiment Telescope
• MPI — Minnesota Project Innovation

• UDL — Unique Data Log
• ST-ECF — Space Telescope - European Coordinating Facility
• CAROB — Carter Observatory Wellington New Zealand Astronomical Bulletins
• BCS — Bragg Crystal Spectrometer
• KODOB — Kodaikanal Observatory Bulletins
• SIP — Sickness Index Profile
• ANSHO — Shanghai Observatory Annals
• STHCG — Studies in High Energy Physics Cosmology and Gravitation
• CRISTA — Cryogenic Infrared Spectrometer Telescope For Atmosphere
• MIP — Moon Impact Probe
• EUCOMED — European Confederation of Medical Suppliers Associations
• APL&C — Astrophysical Letters Communications
• PBPK — Physiologically-Based Pharmacokinetic
• PVSS — Publications of Variable Star Section
• CEO — Corporate Europe Observatory
• VDC — Volts, Direct Current
• MPC — Minor Planet Circulars
• TNO — Trans-Neptunian Object
• TEC — Thermal Electric Cooler
• ETC — Estimated Time to Completion
• GLOB — Globular
• D/A — Digital-to-Analog
• MVCA — Minnesota Venture Capital Association
• PA — Position Angle
• MBBNET — Minnesota Biomedical Business Network
• IMO — International Meteor Organization
• SVPCS — Springer Verlag Springer Series on Physics Chemistry Space
• CCLRC — Central Laboratory of the Research Councils
• ER — Eastern Range
• MMBAA — Memoirs of the British Astronomical Association
• IPNPR — Interplanetary Network Progress Report
• HAACP — Hazard Analysis Critical Control Points Program
• JCMT — James Clerk Maxwell Telescope
• USNOR — United States Naval Observatory Reports
• CIAO — Chandra Interactive Analysis of Observations
• BANS — Bulletin of the Astronomical Institutes of the Netherlands, Supplement Series
• SPD — Solar Physics Division
• SL — Comet Shoemaker-Levy
• B/W — Black and White
• PPMTO — Publications of the Purple Mountain Observatory
• LDEF — Long Duration Exposure Facility (for Spacecraft Material Testing)
• SAS — Space Adaptation Syndrome
• PASPS — Publications of the Astronomical Society of the Pacific Supplement
• MMIC — Medical Manufacturers' Information Council
• AP&SS — Astrophysics and Space Science
• PRAST — Practical Astronomy
• VPF — Vertical Processing Facility
• SGR — Soft Gamma Repeater
• WSMR — White Sands Missile Range (whiz-murr)
• MDR — Medical Device Register

• MACRO — Monopole, Astrophysics and Cosmic Ray Observatory
• ARBEI — Astrophysics Reports Publications of the Beijing Astronomical Observatory
• SSP — Subsolar Point
• COLON — Communications of the University of London Observatory
• LDEO — Lamont-Doherty Earth Observatory
• IRBS — Infrared Background Sensor
• CM — Center of Mass
• MV — Apparent Visual Magnitude
• PDO — Publications of the Dominion Observatory Ottawa
• LRO — Large Radio Observatory
• FK4 — Fundamental Katalog 4
• CAPMI — Royal Observatory Cape Mimeogram
• TEI — The Education Initiative
• PAIB — Publications of the Astronomy Institute of Bonn
• CORAD — Communications from the Radcliffe Observatory Pretoria South Africa
• LEND — Lunar Exploration Neutron Detector
• ESOB — European Southern Observatory Bulletin
• AC — Astrographic Catalogue
• RAPS — radiologists, anesthesiologists, and pathologists
• MVEMJSUNP — Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto
• SIMBAD — Set of Identifications, Measurements, and Bibliography for Astronomical Data
• VCS — Vernier Control System
• ANLL — Annals of the Observatory of Lucien Libert
• NEA — Noise Equivalent Angle
• PEB — Performance Evaluation Board
• ASTRA — Astrophysics and Space Sciences Transactions
• TAI — International Atomic Time
• LAWOB — Laws Observatory Bulletin
• GML — Galactic Modeling Language
• PCOOO — Publications of the Cook Observatory
• STEREO — Solar Terrestrial Relations Observatory
• SMS — Science Mission Specification
• APL — Astrophysical Letters
• TMC — Taurus Molecular Cloud
• PMCCO — Publications of the Leander McCormick Observatory
• NEP — North Ecliptic Pole
• SPO — Sacramento Peak Observatory
• LPV — Long Period Variable
• MOND — Modified Newtonian Dynamics
• MAGIC — Major Atmospheric Gamma-ray Imaging Cherenkov Telescope
• IPNS — Intense Pulsed Neutron Source
• SPWD — Space World
• OGSE — Optical Ground Support Equipment
• ZPF — Zero-Point-Fluctuation
• BHTA — British Healthcare Trades Industry
• DSS — Digitized Sky Survey
• EPD — Energetic Particles Detector
• GHA — Greenwich Hour Angle
• TOCC — TDRS Operations Control Center
• APSSS — Astrophysics and Space Science Supplement

• PAICZ — Publications of the Astronomical Institute of the Czechoslovak Academy of Sciences
• PISTO — Publications of the Istanbul Observatory
• ANBOS — Annals of the Bosscha Observatory Lembang
• IDT — Instrument Development Team
• JHU — The Johns Hopkins University (Baltimore, MD)
• TBBT — The Big Bang Theory
• MDR — Medical Device Reports
• VLT — Very Large Telescope
• KODRE — Kodaikanal Observatory Reprints
• MACHO — Massive Astronomical Compact Halo Object
• NOCC — Network Operations Control Center (GSFC)
• NED — NASA/IPAC Extragalactic Database
• LCG — light curve generator
• XMM — X-ray Multi Mirror
• MO — Mars Observer
• VAP — Verification and Acceptance Program
• VTHL — Vertical Takeoff Horizontal Landing
• ALMA — Atacama Large Millimeter Array
• PAN-STARRS — Panoramic Survey Telescope and Rapid Response System
• PKIRO — Publications of the Kirkwood Observatory of Indiana University
• CWS — Committee on World Standards
• MA — Medical Alley
• NR — Non-Relativistic
• MEERE — Kenneth Mees Observatory Reprints
• RTS — Relative Time Sequence
• ODE — Office of Device Evaluation
• B/L — Baseline
• STAR — Space Telescope Axial Replacement
• OMC — Orion Molecular Cloud
• DES — Deep Ecliptic Survey
• SID — Sudden Ionospheric Disturbance
• SSGSR — Springer Verlag Springer Series on Group Geophysics Space Research
• ISO — Imaging Spectrometic Observatory
• MNSSA — Monthly Notes of the Astronomical Society of South Africa
• SNR — SuperNova Remnant
• SMART — Small Missions for Advanced Research in Technology
• ANCGH — Annals of Royal Observatory, Cape of Good Hope
• SR — Spectral Recording
• VAFB — Vandenberg Air Force Base
• CSVS — Catalogue of Suspected Variable Stars
• EU — Extended Universe
• ISTS — Institute for Space and Terrestrial Science
• RAL — Radio Astronomy Laboratory
• COOXF — Communications from the University Observatory Oxford
• SST — Spitzer Space Telescope
• TOPS — Toward Other Planetary Systems
• VEEGA — Venus-Earth-Earth Gravity Assist
• LST — Large Space Telescope
• GAS — Getaway Special
• LAMP — Lyman-Alpha Mapping Project

• BMDO — Ballistic Missile Defense Office
• UBM — Unpressurized Berthing Mechanism
• RMS — Record Management System
• OTHB — Over The Horizon Backscatter
• CARRE — Carter Observatory Wellington New Zealand Reprints
• NEO — Near Earth Object
• WSO — Wilcox Solar Observatory
• NM — Non-Moment
• MTWRE — Mount Wilson and Palomar Observatory Reprints
• CAS — Cambridge Astrophysics Series
• ZAMS — Zero Age Main Sequence, a star that has just become a main-sequence star (i.e. a star that has begun burning hydrogen in its core)
• LFT — Luyten Five-Tenths
• ESS — Engineering Support System
• IRA — Infrared Astronomy
• SKA — Square Kilometre Array
• CIT — Circumstellar Imaging Telescope
• CCA — Cambridge Contemporary Astrophysics
• DOC — Data Operations Center
• TMP — Technical Management Plan
• AMR — Antarctic Meteorite Research
• KP — Kitt Peak
• APT — Automatic Photometric Telescope
• MOWG — Mission Operations Working Group
• WAA — Westchester Amateur Astronomers
• PGOOO — Publications of the Goodsell Observatory
• RTC — Real-Time Command
• RC — Relativistic Correction
• AGK3 — Katalog der Astronomischen Gesellschaft 3
• HRS — High Resolution Spectrograph
• COPRI — Contributions from the Princeton University Observatory
• CPD — Cape Photographic Durchmusterung
• AVSOR — American Association of Variable Stars Observers Reports
• JWST — James Webb Space Telescope
• TMA — Tycho Magnetic Anomaly
• ATM — Amateur Telescope Maker
• BDB — Big Dumb Booster
• VAC — Volts, Alternating Current
• POCC — Payload Operations Control Center
• ITF — Intensity Transfer Function
• MLI — Multilayer Insulation
• CRS — Cambridge Reference Sequence
• OOTU — Origin Of The Universe
• CSM — Command and Service Module
• CPMF — cost plus management fee
• DSO — Deep Sky Object
• COAST — Communications in Asteroseismology
• BALTA — Baltic Astronomy
• HEO — Highly Elliptical Orbit
• PAM-D — Payload Assist Module, Delta-class
• EAAA — Escambia Amateur Astronomers Association

• IRFNA — Inhibited Red Fuming Nitric Acid
• THAST — Theoretical Astrophysics
• OAF — Optical Alignment Facility
• KBO — Kuiper Belt Object
• MICRE — University of Michigan Observatory Reprints
• ECA — Earth Crossing Asteroid
• MER — Mars Exploration Rover
• MOLA — Mars Observer Laser Altimeter
• SPP — Subset Preprocessor
• LITVC — Liquid Injection Thrust Vector Control
• RV — Radial Velocity
• SAT — Synthetic Aperture Telescope
• LVPS — Low Voltage Power Supply
• DLR — Deutschen Zentrum für Luft- und Raumfahrt
• WCFZ — Worst Case Fresnel Zone
• STARCAT — Space Telescope Archive Catalog
• OBAFGKM — Oh, Be A Fine Girl, Kiss Me
• TT — Terrestrial Time
• VLBA — Very Long Baseline Array
• AST — Astrometry Science Team
• MDRS — Mars Desert Research Station
• MFR — Manipulator Foot Restraint
• FIRST — Frontiers in Research: Space and Time
• GIO — graphics input/output
• LERC — Lewis Research Center
• ISR — Instrument Science Report
• PBOSO — Publications of the Bosscha Observatory Lembang
• PASK — Publications of the Academy of Science Kasakstan
• OXFOO — Oxford University Observatory Observations
• PCS — Physics and Chemistry in Space
• MS — Mission Schedule
• MTSOM — Mount Stromlo Observatory Mimeographs
• PF&CO — Publications of the Flower and Cook Astronomical Observatory
• BCG — Blue Compact Galaxy
• ESTEC — European Space Technology Center
• ACE — Actuator Control Electronics
• LOWOB — Lowell Observatory Bulletin
• GDS — Great Dark Spot
• GST — Ground System Test
• AIT — Assembly, Integration, and Testing
• CCDM — Catalog of Components of Double and Multiple Stars
• NG — Newsgroup
• CSM — Circumstellar Material
• CM/QA — Configuration Management/Quality Assurance
• PDAA — Publications of the Department of Astronomy, Austin, Texas
• OPS — Operations Division
• MPC — Minor Planets Circular
• BRITE — Bright-Star Target Explorer
• RM — Retrieval Mode
• EU — Engineering Unit

• CVZ — Continuous Viewing Zone (Hubble Space Telescope; US NASA)
• RASS — ROSAT All-Sky Survey
• SP — sun point
• PSF — Point Spread Function
• SMM — Solar Maximum Mission
• MTWAR — Mount Wilson and Palomar Observatory Annual Report
• FACC — Ford Aerospace Communications Corporation
• DENIS — Deep Near-Infrared Survey
• DQF — Data Quality File
• IAO — International Astronomy Olympiad
• FAME — Full-sky Astrometric Mapping Explorer
• NSSCC — NORAD Space Surveillance Computation Center
• ASTQ — Astronomy Quarterly
• SIC — Spacecraft Identification Code
• ZD — Zenith Distance
• FRAS — fellow of the Royal Astronomical Society
• HRA — High Resolution Apodizer
• VOIR — Venus Orbiting Imaging Radar
• ODC — Other Direct Cost
• UIT — Ultraviolet Imaging Telescope
• IWG — Interface Working Group
• FDI — failure detection and isolation
• TAG — Two-Axis Gimbal
• SP — Solar Physics
• AOR — Astronomical Observation Request
• HB — Hot Bands
• NSC — Navigational Star Catalog
• RLQ — Radio Loud Quasar
• MINISAT — Miniature Satellite
• RICAP — Roma International Conference on Astroparticle Physics
• ODAS — OCA (Observatoire de la Côte d'Azur) - DLR (Deutschen Zentrum für Luft- und Raumfahrt) Asteroid Survey
• DDTE — Design, Development, Test, and Evaluation
• GVI — Global Village Idiot
• UIC — User Identification Code
• PNLF — Planetary Nebula Luminosity Function (astronomy)
• FAST — Fast Auroral Snapshot Explorer
• CSO — Caltech Submillimeter Observatory
• SARA — Satellite pour Astronomie Radio Amateur
• CTO — Color Temperature Orange
• DQE — Detector Quantum Efficiency
• VHE — Very High Energy
• DISR — Descent Imager/Spectral Radiometer
• PDA — Photon Detector Assembly
• ABBA — ADC Backend For Bolometer Array
• ETOL — ESA Test and Operations Language
• DN — Digital Number
• CCD — Color-Color Diagram
• ACV — Alpha Canes Venatici
• FGE — Fine Guidance Electronics
• BWI — Baltimore-Washington International Airport, between Baltimore, Maryland and Washington, DC, United States

• SPRL — Space Physics Research Laboratory
• FES — Fine Error Signal
• SB — Spectroscopic Binary
• MPF — Mars PathFinder
• SMA — Secondary Mirror Assembly
• NSL — Northrop Space Laboratory
• TMTE — Telemetry Test Equipment
• HLV — Heavy Lift Vehicle
• SLAP — Space Link Access Protocol
• T&E — Test and Evaluation
• TAR — Test Authorization Request
• FSM — First Servicing Mission
• SQPK — staggered quadrature phase shift keying
• SAL — Space Astronomy Laboratory (Univ. Wisconsin, Madison WI)
• AEA — Atomic Energy Agency
• SOHO — Solar Heliospheric Observatory
• AGN — Active Galactic Nucleus
• JVO — Japanese Virtual Observatory
• GSPC — Guide Star Photometry Catalog
• SETI — Search for Extra Terrestial Intelligence
• KTB — Cretaceous-Tertiary Boundary
• A/D — Analog to Digital (conversion)
• CAI — Calcium Aluminum-rich Inclusion
• HAO — High Altitude Observatory (NCAR)
• SNAP — Structural Network Analysis Program
• LBVS — Luminous blue variable
• NEAF — North East Astronomy Forum
• SV — Science Verification
• OLT — Observatory Level Test
• IPS — Inches Per Second
• CDMH — Cold Dark Matter Haloes
• EROS — Earth Resources Observation Satellite
• AST — Apparent Solar Time
• HVR — Hyper-Variable Region
• IPPPSSOOT — file naming convention for HST data sets
• SPDM — Special Purpose Dextrous Manipulator
• BAC — Bordeaux Astrographic Catalog
• IDT — Image Dissector Tube
• OCB — Operational Configuration Baseline
• LAMO — low altitude mapping orbit
• HFQPO(S) — high-frequency quasi-periodic oscillation(s)
• ABB — After the Big Bang
• CCAR — Colorado Center for Astrodynamics Research
• AXP — Anomalous X-Ray Pulsar
• PEP — Proposal Entry Processor
• COTS — Cheap Off the Shelf
• MSOCC — Multisatellite Operations Control Center
• WAA — Western Amateur Astronomers
• VRCS — Vernier Reaction Control System
• SWEEPS — Sagittarius Window Eclipsing Extrasolar Planet Search

• PAD — Pulse Amplitude Discriminator
• LGRB(S) — long gamma ray burst(s)
• AAA — Amateur Astronomers Association
• CSPN — Central Star of Planetary Nebula
• ATR — Absolute Time Reference
• NGS — National Geographic Society
• A — Angstrom unit
• MTR — Mean Time to Restore
• WTR — Western Test Range
• ZHR — Zenith Hourly Rate
• LBN — Lynds Bright Nebula
• SWAT — Swift Action Team
• BDF — Block Data Format
• SST — Software Support Team
• STERJ — Solar, Terrestrial and Environmental Research Japan
• EA — Eclipsing Algol
• LCRS — Las Campanas Redshift Survey
• PK — Perek-Kohoutek
• Z — Redshift Factor
• ARGOS — Advanced Research Global Observation Satellite
• CPMM — characters per millimeter
• IRDC — Infrared Dark Cloud
• CCL — Closed Conference Loop
• SED — Spectral Energy Distribution
• SLOI — Satellite Lake Observatory Initiative
• MCSA — Mir Cooperative Solar Array
• VFN — virtual file name
• LUT — Lookup Table
• SXR — Soft X-Ray
• ZAP — Z Axis Precession
• CIP — Celestial Intermediate Pole
• SWAS — Submillimeter Wave Astronomy Satellite
• PMIRR — Pressure Modulated InfraRed Radiometer
• NICMOS — Near-Infrared Camera and Multi-Object Spectrometer
• ADIL — Astronomy Digital Image Library
• CAAS — Central Arkansas Astronomical Society
• DCF — Data Capture Facility
• SOUST — Southern Skies
• RC — Reference Catalogue
• ACRV — Astronaut Crew Rescue Vehicle
• VSSCI — Variable Star Section Circulars
• PLSS — Portable Life Support System
• PODPS — Post Observation Data Processing System
• SN — SuperNova
• PWM — pulse width modulated
• SIA — Solar Inertial Attitude
• SERF — Space Environment Research Facility
• NEA — Near-Earth Asteroid
• AVWG — Assembly and Verification Working Group
• SUMER — Solar Ultraviolet Measurements of Emitted Radiation

• BOOK — Bio Optical Organized Knowledge
• GTO — Guaranteed Time Observer
• LBV — Luminous Blue Variable
• SCAS — Southern Cross Astronomical Society, Inc.
• SFS — Smallest Feature Size
• MSTO — Main Sequence Turn-Off
• CELT — California Extremely Large Telescope
• DMS — Data Management Subsystem
• GSOWG — Ground Systems Operations Working Group
• WIYN — Wisconsin Indiana Yale NOAO Telescope Consortium
• RPI — Rensselaer Polytechnic Institute (Rensselaer, NY)
• ORB — Observatoire Royal de Belgique (Royal Observatory of Belgium)
• VSSRE — Variable Star Section Reprints
• SPIF — Shuttle/POCC Interface Facility
• COMPTEL — Compton Telescope
• EJASA — Electronic Journal of the Astronomical Society of the Atlantic
• EHB — Extreme Horizontal Branch
• LIRG — Luminous Infrared Galaxy
• EAPU — External Auxiliary Power Unit
• VZA — Viewing Zenith Angle
• OMS — Observatory Monitoring System
• TIUCS — Transactions of the International Union for Cooperation in Solar Research
• TOYAL — Transactions of the Astronomical Observatory of Yale University
• IRAC — International Radio Advisory Committee
• SAOCO — Smithsonian Astrophysical Observatory - Contributions to Astrophysics
• SUVSR — Scandinavian Union of Amateur Astronomers Variable Star Section
• BMO — Black Moving Object
• MONGO — Interactive graphics software package
• CFCO — Committee for Crescent Observation
• ZOF — zone of exclusion
• MSP — Millisecond Pulsar
• QV — quick visual
• STIF — Software Test and Integration Facility
• P&A — Physics and Astronomy
• ACS — Advanced Camera for Surveys
• WAA — Wiener Arbeitsgemeinschaft für Astronomie
• TKSC — Tsukuba Space Center
• STOL — Systems Test and Operations Language
• YSO — Young Stellar Object
• GCVS — General Catalog of Variable Stars
• GMC — Giant Molecular Cloud
• GOX — Gaseous Oxygen
• RGA — Rate Gyro Assembly
• IAAC — Internet Amateur Astronomers Catalog
• IDMP — International Daylight Measurement Program
• SQM — Strange Quark Matter
• SCSP — Science and Culture Series Physics
• AGK — Astronomische Gesellschaft Katalog
• SXT — Soft X-Ray Telescope
• CDCA — Centre de Depoiullement des Cliches Astronimiques

• C&DH — Control and Data Handling
• APT — Automated Patrol Telescope
• PMDB — Project Management Data Base
• VGRF — Variable-Gravity Research Facility
• E/A — Ephemeris/Attitude
• OPB — Observation Planning Branch
• FIRST — Far InfraRed and Submillimeter Space Telescope
• WKO — Well-Known Object
• PASP — Publications of the Astronomical Society of Pacific
• AWG — Astronomy Working Group
• SJC — slit jaw camera
• SPIEL — Signal Processing Interactive Extensible Language
• QZ — Quasi Zenith
• OCO — Oort Cloud Object
• CEMP — Carbon-Enhanced Metal-Poor
• LENA — Low Energy Neutrino Astronomy
• IDM — Intelligent Database Machine
• XN — X-ray Nova
• NRF — National Research Foundation
• GEIS — Generic Edited Information Set
• DN — Dwarf Nova
• SQPN — staggered quadriphase pseudo-random noise
• STAVF — Space Telescope Assembly and Verification Facility
• HIPO — Hierarchic Input-Process-Output
• MIDAS — Munich Image Data Analysis System
• UKIRT — United Kingdom Infrared Telescope
• C/C — configuration control
• TAUVEX — Tel Aviv University Ultraviolet Explorer
• NEMP — Nitrogen-Enhanced Metal-Poor
• PSL — Program Support Library
• ENE — East North East
• TSTO — Two-Stage-To-Orbit
• UDMH — Unsymmetrical Dimethyl Hydrazine (Alar Metabolite)
• ARAA — Annual Review of Astronomy and Astrophysics
• SAGA — Solar Array Gain Augmentation
• BSG — Blue SuperGiant
• AESS — Institute of Electrical and Electronic Engineers - Aerospace and Electronics Systems Society
• SRS — Stellar Radiation Sensor
• RXTE — Rossi X-Ray Timing Explorer
• SDP — science data packet
• QPO — Quasi-periodic Oscillation
• SDMS — Spatial Data Management System
• PRESTO — Project to Re-Engineer Space Telescope Observing
• CNSR — Comet Nucleus Sample Return
• XCS — XMM Cluster Survey
• VELLO — Very Low Luminosity Object
• FGS — Fine Guidance Sensors
• WBHF — WideBand High Frequency
• ICSO — International Conference on Space Optics
• CVAS — Chippewa Valley Astronomical Society

• CISCO — Cooled Infrared Spectrograph and Camera for OHS
• AOA — ASCA Online Arxiv
• DSOB — Data Systems Operations Branch
• THEMIS — Thermal Emission Imaging System
• CG — Compact Galaxy
• ORR — Orbit Readiness Review
• DDCU — DC-to-DC Converter Unit
• RRAT — Rotating RAdio Transient
• NIMS — Near-Infrared Mapping Spectrometer
• BCCP — Berkeley Center for Cosmological Physics
• VRM — Venus Radar Mapper
• IRAIT — International Robotic Antarctic Infrared Telescope
• AVO — Astrophysical Virtual Observatory
• RNP — Rotation, Nutation and Precession
• CSS — Catalina Sky Survey
• OVIWG — Orbital Verification Implementation Working Group
• ESTR — Engineering and Science Tape Recorder
• TWA — TW Hydrae Association
• NOT — NOrdic Telescope
• HERA — Hermes Robotic Arm
• EAAS — East Antrim Astronomical Society
• VSSSC — Variable Star Section Special Circulars
• VERITAS — Very Energetic Radiation Imaging Telescope Array System
• RIACS — Research Institute for Advanced Computer Science
• UGSU — UG SU Ursae Majoris
• RQZ — Radio Quiet Zone
• ALAT — Airborne Large Aperture Telescope
• SHAD — Stellar Horizon Atmospheric Dispersion
• SEB — Source Evaluation Board
• ACS — Actuator Control System
• ULAS — Union List of Astronomy Serials
• CBS — Contract and Business Services
• OSB — Operations Software Branch
• MMR — Mean-Motion Resonance
• OCS — Optical Control System
• FEM — Finite Element Model
• SLTV — System Level Thermal Vacuum
• OSS — Observation Support System
• LSO — Large Solar Observatory
• AXAF — Assembly and Verification Working Group
• XIS — X-ray Imaging Spectrometer
• AAAM — Active Amateur Astronomers of Maryland
• IQL — Interactive Query Language
• UST — Universal Standard Time
• OC — Open Cluster
• CCIR — Comit? Consultatif International Pour La Radio (French For Consultative Committee On International Radio
• SOFA — Standards of Fundamental Astronomy
• AEDP — Astrometry and Engineering Data Processing
• SSC — Science Support Center
• LC — Las Campanas observatory

• NPS — North Polar Sequence
• AQR — Aquarius
• ETR — Engineering Tape Recorder
• EKBO — Edgeworth-Kuiper Belt Object
• NAO — National Astronomy Olympiad
• FGSAA — FGS Access Area
• STR — Science Tape Recorder
• LINER — Low Ionization Nuclear Emission Region
• SIPS — Southern Infrared Proper Motion Survey
• UCSD — University of California San Diego
• C&A — calibration and analysis
• DSD — Data Systems Division
• CVC — Current-to-Voltage Converter
• CAAA — Capital Area Astronomy Association
• SCSA — Science and Culture Series Astrophysics
• CMC — Carlsberg Meridian Catalogue
• TECU — Technology and Culture
• VILCO — Villanova University Observatory Contributions
• BST — British Summer Time [GMT 0100]
• MCG — Morphological Catalog of Galaxies
• SPT — South Pole Telescope
• SQIID — Simultaneous Quad Infrared Imaging Device
• SAM — Small Angle Maneuver
• FPA — Focal Plane Assembly
• CMT — Carlsberg Meridian Telescope
• O — Oblivion
• SANSA — South African National Space Agency
• STL — science trailer line
• ADAF — Advection-dominated Accretion Flow
• ROLUN — Reports of the Lund Observatory
• AET — Accuracy Enhancing Technology
• PASP — Proceedings of the Astronomical Society of the Pacific
• ASP — Analog Signal Processor
• ITA — Institute of Theoretical Astronomy
• PFS — Percent Full Scale
• SFC — Space Forecast Center
• PORTS — Preliminary Operations Requirements and Test Support
• CSAA — Committee on Space Astronomy and Astrophysics
• LCDM — Lambda Cold Dark Matter
• EMP — Extremely Metal-Poor
• ETRD — Engineering Tape Recorded Data
• CREAM — Cosmic Ray Energetics and Mass
• BITP — Bogolyubov Institute for Theoretical Physics
• REPT — Relativistic Electron-Proton Telescope
• RAG — Radio Astronomy Group
• SS — System Simulator
• IRAC — Infrared Array Camera
• LOTOSS — Lick Observatory and Tenagra Observatory Supernova Searches
• BOAO — Bohyunsan Optical Astronomy Observatory
• AJD — Astronomical Julian Day

• SJR — Software Justification Report
• IMSL — International Mathematical and Statistical Library
• PROS — Post Reduction Offline Software
• GLOW — Gross Lift-Off Weight
• STSDAS — Space Telescope Science Data Analysis System
• CAMAC — Computer-Aided Measurement and Control
• WISARD — Web Interface for Searching Archival Research Data
• PFI — Partial Frame Image
• TAROT — Télescope à Action Rapide pour les Objets Transitoires
• RPO — Research Programs Office
• LPICO — Lunar and Planetary Institute Contributions
• MAST — Multimission Archive at Space Telescope
• WOMBAT — Wavelength-Oriented Microwave Background Analysis Team
• PPF — Payload Processing Facility (USAF)
• XSC — Extended Source Catalog
• ATCA — Australia Telescope Compact Array
• GMRT — Giant Meter-wave Radio Telescope
• EAAE — European Association for Astronomy Education
• PTF — Payload Test Facility
• TFMRP — Transfer Function Mode Reduction Package
• DOV — Director of Orbital Verification
• SMOV — Servicing Mission Observatory Verification
• DPOSS — Digitized Palomar Observatory Sky Survey
• PWD — Pre-White Dwarf
• SIF — Science Instrument Formatter
• ASKAP — Australian Square Kilometre Array Pathfinder
• AOC — Award Of Contract
• PSR — Project Status Review
• R&I — Receiving and Inspection
• CIBR — Cosmic Infrared Background Radiation
• IPPW — International Planetary Probe Workshop
• CXO — Chandra X-ray Observatory
• WIRCAM — Wide-field InfraRed Camera, instrument on the Canada-France-Hawaii Telescope
• FPSA — FPA Structure Assembly
• STOCC — Space Telescope Operations Control Center (GSFC, Greenbelt MD)
• CINEOS — Campo Imperatore Near-Earth Object Survey
• TZO — Thorne-Å»ytkow Object
• OSCAR — Orbital Satellite Carrying Amateur Radio
• DVA — Detector Vacuum Assembly
• DCEP — Delta Cepheid
• SPWEA — Space Weather
• WKAA — West Kentucky Amateur Astronomers
• IV — intra vehicular
• RNGC — Revised New General Catalog
• SEP — System Enhancement Plan
• DN — Dwarf Novae
• CC — Candidate Companion
• RC — Ritchey-Chretien
• SETA — Search for Extra Terrestrial Artifacts
• MPCS — Minor Planet circulars Supplement

• PUSNO — Publications of the US Naval Observatory
• VPU — video processing unit
• MU — Memory Unit
• PDBI — Plateau de Bure Interferometer
• ACM — Asteroids Comets Meteors
• PNS — Pulsed Neutron Source
• VRSD — Verification Requirements and Specifications Document
• EVAC — East Valley Astronomy Club
• EOSL — Earth Observation Systems Laboratory
• NLTE — Non-local Thermodynamic Equilibrium
• EBE — Extraterrestrial Biological Entity
• RFT — Rich Field Telescope
• ISEE — International Sun Earth Explorer
• MWO — Mount Wilson Observatory
• IRCS — Infrared Camera and Spectrograph
• UMCP — University of Maryland College Park
• ETI — Extraterrestrial Intelligence
• VSOLB — Variable Star Observers League in Japan - Bulletin
• LMST — Local Mean Sidereal Time
• BATC — Beijing-Arizona-Taiwan-Connecticut
• RPSS — Remote Proposal Submission System
• HDOS — Hughes Danbury Optical Systems (Danbury CT)
• CADC — Canadian Astronomical Data Center
• SAREX — Space Amateur Radio Experiment
• RVMA — Reviews in Modern Astronomy
• MS — Meteor Scattering
• PUAMS — Publications of the Astronomical Institute of the University of Amsterdam
• QPSK — quadriture phase shift keying
• HTHL — Horizontal Takeoff Horizontal Landing
• SPA — Solar Panel Assembly
• STIF — Science and Technology Information Facility
• CFCP — Center for Cosmological Physics
• COMICS — Cooled Mid-Infrared Camera and Spectrometer
• ODL — Observation Data Log
• DM — Dark Matter
• PNNV — Planetary Nebula Nucleus Variable
• CCO — Catalogue of Cometary Orbits
• SSRV — Space Science Reviews
• ICF — Intrinsic Correlation Function
• CSV — Catalog of Suspected Variables
• ACP — Aerosol Collector and Pyrolyser
• LWS — Long Wavelength Spectrometer
• LST — Local Sidereal Time
• ELIAS — European Large Area ISO Survey
• CMBR — Cosmic Microwave Background Radiation
• VPC — viewport coordinates
• RABF — Radio Astronomy Bandstop Filter
• GEM — Galileo Europa Mission
• ECT — Equator Crossing Time
• SAS — Science Analysis Software

• IFT — Inverse Fourier Transform
• ADS — Aitken Double Stars
• ACURA — Association of Canadian Universities for Research in Astronomy
• AAT — Anglo-Australian Telescope
• CASB — Catalogs and Survey Branch
• WIRE — Wide-Field Infrared Explorer
• LWR — Long Wavelength Redundant
• QPOE — Quick Position Oriented Event
• STEIS — Space Telescope Electronic Information System
• ISPM — International Solar Polar Mission
• APSB — Advance Planning Systems Branch
• OCX — observation comments file
• OV — Orbital Verification
• ASCA — Advanced Satellite for Cosmology and Astronomy
• CG — Cometary Globule
• CRAP — Completely Radical Anthropic Principle
• CM — Critical mass
• OPUS — OSS and PODPS Unified Systems
• SPE — Static Phase Error
• SGEMP — Space-Generated Electromagnetic Pulse
• CSLG — Campus-wide Software License Grants Program
• KAIT — Katzman Automatic Imaging Telescope
• GSSS — Guide Star Selection System
• IIPS — Interactive Image Processing System
• CMCC — Central Mission Control Centre
• OAO — Orbiting Astronomical Observatory
• LMSC — Lockheed Missile and Space Corporation
• SAREX — Search and Rescue Exercise
• PNG — Planetary Nebulae, Galactic
• LRG — Luminous Red Galaxy
• SIMA — Secondary Mirror Incremental Motor Actuator
• OCST — Office of Commercial Space Transportation
• HESI — High Energy Solar Imager
• CSPAR — Center for Space Plasma and Aeronomic Research
• BDEC — Bendix Field Engineering Corporation
• SMBH — Super Massive Black Hole
• MOSES — Mission Operations and Systems Engineering Support
• PSR — Pulsar Supernova Remnant
• BLO — Bl Lac Object
• VVDS — VIMOS-VLT Deep Survey
• NAIF — Navigation Ancillary Information Facility
• TUASB — Tokyo University Institute of Space and Aeronautical Science Bulletin
• GBT — Green Bank Telescope
• ASAS — All Sky Automated Survey
• OPD — Operations and Data Processing Division
• DIG — Dwarf Irregular Galaxy
• PSI — Planetary Science Institute
• EAFB — Edwards Air Force Base
• SEA — Sensor Electronics Assembly
• OPO — Operations Project Office

• OFAD — Optical Field Angle Distortion
• GXY — Galaxy
• SMM — science mission management
• IRTF — Infrared Telescope Facility
• MV — absolute visual magnitude
• LFAE — Light Field Attribute Explorer
• SINGS — Spitzer Infrared Nearby Galaxies Survey
• MOXE — MOnitoring X-Ray Experiment
• RDI — Radiation Driven Implosion
• GCC — Globular Cluster Candidate
• CTIO — Cerro Tololo Inter-American Observatory
• FFD — First Fixation Duration
• LP — Luyten Palomar
• TASS — The Amateur Sky Survey
• LV — Lunette Verte
• BEM — Bug-Eyed Monster (Late 40's-early 50'soft-used, and still in use, Sci-Fi term)
• SS — Safing System
• SEI — Space Exploration Initiative
• CDIMP — Catalogue of Discoveries and Identifications of Minor Planets
• IARA — Italian Amateur Radio Astronomy
• SSU — Steady State Universe
• MOID — Minimum Orbit Intersection Distance
• MXRB — Massive X-Ray Binary
• EUSO — Extreme Universe Space Observatory
• ♅ — Uranus
• AD — Analog to Digital
• CP — Chemically Peculiar
• GPB — Group Parameter Block
• ULE — Ultralow Expansion
• LTM — Like The Moon
• JOP — Joint Observing Program
• AAS — Archaeology Astronautics and Seti
• DES — Dark Energy Survey
• FOCAS — Faint Object Classification and Analysis System
• LEST — Large Earth-based Solar Telescope
• LOTIS — Livermore Optical Transient Imaging System
• MOTV — Manned Orbital Transfer Vehicle
• BBH — Big Black Hole
• TO — target of opportunity
• WFS — Wave Front Sensor
• TCB — Barycentric Coordinate Time
• HTVL — Horizontal Takeoff Vertical Landing
• SF — Star Field
• PCT — Program Coordinator Team
• SPSS — Science Planning and Scheduling System
• SUPRIME — SUbaru PRIME focus CAMera
• GAF — Geographic Adjustment Factor
• SOSYR — Solar System Research
• STVSW — Space Telescope Verification Software
• TTC — telemetry, tracking, and command

• BPM — Bruce Proper Motion
• TML — Total Mass Loss
• RC — Red Clump
• ASWG — Astronomical Science Working Group
• TCG — Geocentric Coordinate Time
• FASTT — Flagstaff Astrometric Scanning Transit Telescope
• OW — Outer Wall
• EARS — Electrostatic Atmospherics Radio Sensor
• NEAP — Near Earth Asteroid Prospector
• FSS — Flight Servicing System
• SVWG — Science Verification Working Group
• UGZ — UG Z Camelopardalis
• RSG — Red Super Giant
• SIB — Science Instrument Branch
• L — Lagrange
• XBP — X-Ray Bright Point
• APASS — AAVSO Photometric All-Sky Survey
• ECA — Electronics Control Assembly
• PEGA — Programs in Extra-Galactic Astronomy
• SSPRV — Space and Solar Power Review
• SID — Software Implementation Directive
• ADAS — Asiago DLR Asteroid Survey
• PRE — Photospheric Radius Expansion
• USMP — United States Microgravity Payload
• NLST — National Large Solar Telescope
• PEP — PhotoElectric Photometry
• STDN — Satellite Tracking and Data Network
• DAV — Deerlick Astronomy Village
• SCUBA — Submillimetre Common User Bolometer Array
• CRRES — Combined Release Radiation Effects Satellite
• BAV — Bundesdeutsche Arbeitsgemeinschaft fur Veraenderliche Sterne
• SDAS — Scientific Data Analysis System
• MAG — Magnitude
• SHAD — Stellar Horizon Attitude Determination
• TAU — Thousand Astronomical Unit
• DS — Dwarf Star
• MLRS — McDonald Laser Ranging Station
• ESB — Engineering Support Branch
• CIB — Cosmic Infrared Background
• PGPLOT — FORTRAN subroutine library for plotting graphics
• FPAS — FPA Shroud
• WXQ — Waxing Quarter
• AUDS — ALFA Ultra Deep Survey
• COL — Collinder catalog
• FEB — Falling-Evaporating Body
• SGRB(S) — short gamma ray burst(s)
• TUASR — Tokyo University Institute of Space and Aeronautical Science Report
• MT — Moving Target
• LONEOS — Lowell Observatory Near-Earth-Object Search
• TYC — Tycho

• TIB — Telescope Instrument Branch
• SSO — Special Studies Office
• PNN — Planetary Nebula Nucleus
• VISTAR — visible space tracking and reconnaissance
• DCA — Detector Control Assembly
• SSP — Surface Science Packages
• CXBR — Cosmic X-ray Background Radiation
• SCARS — Science Computing & Research Support Division
• SUGRA — Supergravity
• BRAVO — Back-End Redesign for Added Value for Observers
• MGS — Mars Global Surveyor
• SDM — Secondary Deployment Mechanism
• UGWZ — UG WZ Sagittae
• SER — Systems Engineering Report
• CTTS — Classical T Tauri Star
• AGAPE — Andromeda Galaxy and Amplified Pixels Experiment
• CNES — Centre National d'Etude Spatiales
• N — Nova
• UGSS — UG SS Cygni
• IB — Interstellar Band
• ILOC — International Lunar Occultation Center
• WFCAM — Wide Field Camera
• IVC — Institute Visiting Committee
• MEM — Maximum Entropy Method
• STIC — Space Telescope Institute Council
• TAC — telemetry and command processor
• CST — Constant Strain Triangle
• SPS — Solar Power Satellite
• CCO — Central Compact Object
• ERO — Extremely Red Object
• LINEAR — Lincoln Near Earth Asteroid Research
• MUSTANG — Multiplexed SQUID TES Array at Ninety GHz
• RSB — Research Support Branch
• CTRF — Celestial and Terrestrial Reference Frames
• IBBTF — Imagination Baffled By The Facts
• RMS — Remote Manipulator System
• PMPS — Parkes Multibeam Pulsar Survey
• CRTS — Centre Royal de Teledetection Spatiale
• WGAS — Working Group on Astronomical Software
• SWAN — Solar Wind ANisotropy
• CGRO — Compton Telescope
• ERRSAC — Eastern Regional Remote Sensing Applications Center
• GC — Galactic Center
• KIC — Kepler Input Catalog
• FGC — Flat Galaxy Catalogue
• CCITT — Consultative Committee on International Telegraph & Telephone
• DAG — Doğu Anadolu Gozlemevi
• NCSA — National Center for Supercomputer Applications (Urbana IL)
• AEG — Astro Event Group
• NEO — Near-Earth Object - Non-combatant Evacuation Operations

• NDC — Network Data Center
• RORF — Radio/Optical Reference Frame
• TIC — Tycho Input Catalog
• ESIS — European Space Information System
• TSI — Total Solar Irradiance
• NOMAD — Naval Observatory Merged Astrometric Dataset
• UNPSA — United Nations Programme on Space Applications
• DBW — decibel reference to 1 watt
• E — Eclipsing
• EMP — Ephemerides of Minor Planets
• MMF — Moving Magnetic Feature
• MYSO — Massive Young Stellar Object
• EOR — End of Record
• ROTSE — Robotic Optical Transient Search Experiment
• EIT — Extreme Ultraviolet Imaging Telescope
• SVPHA — Soviet Physics Astronomy
• EAPJ — Electronic AstroPhysical Journal Letters
• DEFCAL — deflection calibration
• NIU — NASCOM Interface Unit
• LWS — Long-Wave Spectrograph
• MONS — Measuring Oscillations in Nearby Stars
• SPG — Special Projects Group
• EPAO — Educational and Public Affairs Office
• DSN — deep-space network
• PEPE — Plasma Experiment for Planetary Exploration
• VISTA — Visible and Infrared Survey Telescope for Astronomy
• FIRST — Faint Images of the Radio Sky at Twenty-centimeters
• LETGS — Low Energy Transmission Gratings Spectrometer
• RLOF — Roche Lobe Overflow
• MW — Milky Way
• SEST — Swedish-ESO Submillimetre Telescope
• ALTS — Astronomy Lunch Time Seminar
• SMM — Spectro-Mirror Mechanism
• KAO — Kuiper Airborne Observatory
• RTLT — Round Trip Light Time
• UKIDSS UKIRT — Infrared Deep Sky Survey
• PAR — Photon Activity Rate
• CHZ — Circumstellar Habitable Zone
• MRSRM — Mars Rover and Sample Return Mission
• IPMO — Isolated Planetary-Mass Objects
• DE — Dwarf elliptical
• ODS — Our Dark Skies
• SESD — Science and Engineering Systems Division
• SMO — Servicing Mission Office
• Q&A — qualification and acceptance
• RWA — Reaction Wheel Assembly
• PASA — Pan-Arab Space Agency
• ICRC — International Cosmic Ray Conference
• PWN — Pulsar Wind Nebula
• DDA — Division on Dynamical Astronomy

• WSAL — Winston-Salem Astronomical League
• SIAF — Science Instrument Aperture File
• IWCA — International Workshop on Cometary Astronomy
• UKST — United Kingdom Schmidt Telescope
• SMA — Submillimeter Array
• CNS — Computing and Network Services
• LOSS — Lick Observatory Supernova Search
• EAC — European Astronaut Centre
• BZ — Brillouin zone - a uniquely defined primitive cell in reciprocal space
• SRAA — Scenic Rim Astronomy Association, Inc.
• CHIP — Cosmic Hot Interstellar Plasma
• SEP — Solar Energetic Particle
• FEAT — Fine Error Averaging Test
• ABRIXAS — A BRoadband Imaging X-ray All-sky Survey
• PW&SO — Publications of the Warner Swasey Observatory
• LOFAR — Low Frequency Array
• QEH — Quantum Efficiency Hysteresis
• SFD — SXT Full Disk
• CIAO — Coronagraphic Imager with Adaptive Optics
• DDF — Directors Discretionary Funds
• SHAR — Stellar Horizon Atmospheric Refraction
• IOTA — Infrared-Optical Telescope Array
• GRAND — Gamma Ray and Neutron Detector (NASA)
• LSG — Liaison Scientists Group
• GRS — Great Red Spot
• START — Solar Thermal Analysis Review and Training
• SIPE — Science Instrument Protective Enclosure
• CANX — Canadian Advanced Nanospace Experiments
• TAAA — Tucson Amateur Astronomy Association
• ULX — Ultra-Luminous X-ray source
• SSD — Science Support Division
• XRB — X-Ray Background
• ACT — Astrographic Catalog Tycho
• SCUBA-2 — Submillimetre Common User Bolometer Array 2
• SAOC — SAO Catalog
• MPP — multi-pinned phase
• BCVS — Bibliographic Catalogue of Variable Stars
• LMXB — Low-Mass X-Ray Binary
• SOARD — Steward Observatory Asteroid Relational Database
• AH — ampere hours
• GRAB — Galactic Radiation and Background
• LSST — Large Synoptic Survey Telescope
• WDS — Washington Double Star
• GRB — Gamma Ray Bursters
• JFC — Jupiter Family Comets
• SDF — Science Data Formatter
• SCAC — Science Computing Advisory Commitee
• SSRT — Single Stage Rocket Technology
• SPYBAL — spectrum Y balance
• STAC — Space Telescope Advisory Council

• GSP — General Support Pool
• CST — Constant
• WRO — Warren Rupp Observatory
• ATPI — Astronomy Through Practical Investigations
• LDS — Luyten Double Star
• CSWA — Committee on the Status of Women in Astronomy
• IAU — International Astrophysical Union
• SIS — SETI (Search for Extra-Terrestial Intelligence) Intercept System
• OGLE — Optical Gravitational Lensing Experiment
• MLY — Mega Light Year
• CNO — Carbon-Nitrogen-Oxygen
• SHP — Standard Header Packet
• IRS — International Reference Star
• SCP — Small Computer Systems Interface
• GDSO — Georgi Dobrovolski Solar Observatory
• DRS — Direct Receiving Station
• TRACE — Transition Regional and Coronal Explorer
• DRD — Data Requirements Document
• ECF — European Coordinating Facility
• SMC — Small Magellanic Cloud
• SDA — Science Data Analyst Small Computer Systems Interface
• SSSPM — SuperCOSMOS Sky Survey Proper Motion
• US/PS — see PRESTO
• MKO — MAUNA KEA OBSERVATORY
• ASTRO — Autonomous Space Transport Robotic Operations
• PRB — Preliminary Review Board
• CODMAC — Committee on Data Management and Computing
• OST — Observation Sequence Table
• PFM — Pre-Flight Module
• EF — Event Foreground
• GHZ — Galactic Habitable Zone
• ACIS — Advanced CCD Imaging Spectrometer
• LHS — Luyten Half-Second
• ACA — Atacama Compact Array
• PWHHO — Publications of West Hendon House Observatory, Sunderland
• CGSS — Catalogue of Galactic S Stars
• WCS — World Coordinate System
• MLSO — Mauna Loa Solar Observatory
• SFN — Star Formation Newsletter
• SMC — Standard Model of Cosmology
• ACK — acknowldgement message
• SCOA — Smithsonian Contributions to Astrophysics
• UVCS — Ultraviolet Coronal Spectrometer
• LDE — Long Duration Event
• HLO — High Light Output
• SSS — SuperCOSMOS Sky Surveys
• SPB — Science Planning Branch
• LP — Lonely Planet
• XANES — X-Ray Near Edge Spectroscopy
• BSS — Blue Straggler Star

• CRL — Compound Refractive Lens
• HSI — Host System Interface
• NS — Neutron Star
• SAO — Swinburne Astronomy Online
• CCMS — Command Control and Monitor System
• PASS — POCC Application Software Support
• BHXRT — Black Hole X-Ray Transient
• R-L — Richardson-Lucy
• TRB — Test Review Board
• RTC — Researching The Cosmos
• TLP — Transient Lunar Phenomenon
• CFS — Chandrasekhar - Friedmann - Schutz instability
• SEST — Swedish ESO Submillimeter Telescope
• NODO — NASA Orbital Debris Observatory
• WFAO — Wide Field Adaptive Optics
• EDB — Engineering Data Base
• WSGS — White Sands Ground Station
• SWRI — Southwest Research Institute
• SXARI — SX ARIetis
• FRB(S) — gamma ray burst(s)
• SOGS — Science Operations Ground System
• SCP — Science Data Analyst
• TAAS — The Albuquerque Astronomical Society
• CGRO — Compton Gamma Ray Obsrvatory
• HVPS — High Voltage Power Supply
• WAC — Wide Angle Converter
• IMIO — Image Input/Output
• MFP — magnetic field perturbation theory
• BCD — Basic Calibrated Data
• NGS — New Generation STAR
• WF/PC — Wide Field/Planetary Camera
• AMASE — Astrophysics Multi-Spectral Archive Search Engine
• PTF — Palomar Transient Factory
• BRAS — Baton Rouge Astronomical Society
• NLTT — New Luyten Two-Tenths
• RSFC — Radially Stratified Flame Core
• WFPC2 — Wide Field Planetary Camera-2
• SXG — Spectrum-X-Gamma
• DSOS — Dish Surface Optimization System
• CCAS — Cape Cod Astronomical Society
• PACS — Photoconductor Array Camera and Spectrometer
• M — Mira
• SFU — Space Flier Unit
• ASIAA — Academia Sinica Institute of Astronomy and Astrophysics
• PFR — Portable Foot Restraint
• SOB — Science Observatory Branch
• SLSN-I — hydrogen-poor SLSNe
• STFS — Space Telescope Flight Software
• VLB — Very Long Baseline
• MSO — Mount Stromlo Observatory

• CDBS — Calibration Data Base System
• OBP — Onboard Processor
• CRAQ — Centre for Research in Astrophysics of Québec
• ISSA — Infrared Sky Survey Atlas
• TB — Thermal Balance
• DBSA — Database and System Administration team
• EGRET — Energetic Gamma-Ray Experiment Telescope
• WFIS — Wide-Field-of-view Imaging Spectrometer
• SSA — Star Selector Assembly
• CAL — Casual Astronomy League
• SVAL — Soviet Astronomy Letters
• LPCI — Lunar Phases Concept Inventory
• PROPLYD — Protoplanetary Disk
• VF — Variable Frequency
• STARS — Seismic Telescope for Astrophysical Research from Space
• SDD — Single Dish Data
• TRES — Transatlantic Exoplanet Survey
• IO — Interacting Object
• RCS — Readiness Control System
• MPP — Multi-Pinned-Phase
• MEV — million electron volts
• TPI — Technical Proposal Instructions
• MOSS — Moving Object Support System
• WYBT — Whole Year Blazar Telescope
• PSS — Palomar Sky Survey
• HSC — Hierachical Storage Controller
• ACYG — Alpha CYGni
• CFHT — Canada-France-Hawaii Telescope
• NEAT — Near Earth Asteroid Tracking
• XMM — X-ray Multi- Mirror satellite
• HPR — Hardware Problem Report
• GRB(S) — gamma ray burst(s)
• CMD — Color-Magnitude Diagram
• EOT — End Of Tape
• UGWZ — U Gem variable type star (WZ Sagittae sub-type)
• PPM — Positions And Proper Motions (catalog)
• DCMF — Data Capture and Management Facility
• CEP — CEPheid
• CMOS — Complimentary Metal Oxide Semiconductor
• CODE — Creation Out of Deep Energy
• CVA — Central Valley Astronomers
• WAPP — Wide-base Arecibo Pulsar Processor
• OAOT — Orbiting Astronomical Observatory Technology
• PSR — Pulsar
• UG — U Geminorum
• GIMP — Geomagnetically Induced Motion Problem
• LST — Large Stellar Telescope
• RSN — Radio SuperNova
• PBO — Pine Bluff Observatory
• CGCS — Cool Galactic Carbon Star

• LSVT — Large Solar Vacuum Telescope
• BCD — Blue Compact Dwarf
• NESS — Near Earth Space Surveillance
• TAI — International Atomic Time (Temps Atomique International) [to 2015 July 1st, 35s ahead of UTC; from 2015 July 1st, 36s ahead of UTC.]
• BSS — Bigelow Sky Survey
• ECEF — EarthCentered EarthFixed
• AER — Astronomy Education Review
• SAD — Supra-Arcade Downflow
• AIM — Aeronomy of Ice in the Mesosphere
• MEPCO — Meeting of European Planetary and Cometary Observers
• HAC — Huachuca Astronomy Club
• SPST — Science Planning and Scheduling Team
• NGT — Next Generation Telescope
• PEPSI — PEP System
• MOMV — Manned Orbital Maneuvering Vehicle
• MPEC — Minor Planets Electronic Circular
• ESTEC — European Space Research and Technology Center
• IRD — Interface Requirements Document
• NTR — Nuclear Thermal Rocket
• VIMOS — Visible Multiobject Spectrograph
• MBA — Main-Belt Asteroid
• BATTERS — Bisei Asteroid Tracking Telescopes for Rapid Survey
• SOFA — Selectable Optical Filter Assembly
• JSGA — Japan Spaceguard Association
• GMOS — Gemini Multi-Object Spectrographs
• TFOV — target field of view
• HETE-2 — high energy transient explorer
• USOC — Unified System Orbit Computation
• GKS — Graphic Kernel System
• SMS — Sun Moon and Stars
• DCL — Digital Control Language
• CTWG — Calibration Targets Working Group
• SDS — Star Diagnosis System
• UAO — University of Arizona Observatories
• SIMM — Standard Inline Memory Module
• NIR — Near Infrared Research
• EBL — Extragalactic Background Light
• FIGV — Factor Inercial de Ganho solar do enVidracado
• WFPC2 — Wide Field and Planetary Camera 2
• RE — ROSAT (ROentgen SATellite) EUV (Extreme Ultra-Violet)
• GMT — Greenwich Mean Time (now obsolete)
• TO — Texas Instruments
• WBS — Wide Band Spectrometer
• EGP — Extrasolar Giant Planet
• SB — Super Bright
• VMC — Velocity Modulating Camera
• SIP — Software Implementation Plan
• RSA — Revised Shapley-Ames
• MSC — Mission Support Calibration
• SSB — Science Software Branch

• SOFIA — Stratospheric Observatory for Infrared Astronomy
• DCX — Delta Clipper Experimental
• TAMS — Terminal-Age Main Sequence
• GASA — Graduate Astronomy Students Association
• IRIS — InfraRed Imaging Surveyor
• CSMA — Committee on the Status of Minorities in Astronomy
• LSA — Large Science Aperture
• ECO — Earth crossing object
• WSF — Wake Shield Facility
• TBC — Time Base Correctors
• LM — Low Mass
• WTTS — Weak-Line T-Tauri Star
• PVTEL — PV TELescopii
• PM — Primary Mirror
• SCT — Schmidt-Cassegrain Telescope
• LFSA — List of Frequently Seen Acronyms
• GSY — Galactic Standard Year
• WIYN — Wisconsin, Indiana University, Yale University, and NOAO (National Optical Astronomy Observatories) Observatory
• MOR — Mission Operations Room
• PCAS — Planet-Crossing Asteroid Survey
• QE — Quality Engineer
• TSRS — Trieste Solar Radio System
• UCLAP — University of California Los Angeles - Astronomical Papers
• WDM — Warm Dark Matter
• SETG — Search for Extra-Terrestrial Genomes
• ARAS — Astronomical Ring for Access to Spectroscopy
• MOST — Microvariability and Oscillations of STars Telescope
• VVS — Vereniging voor Sterrenkunde
• SAMPEX — Solar Anomalous And Magnetospheric Particle Explorer (spacecraft)
• UV-VIS — Ultraviolet - Visible
• CCDS — Centers for the Commercial Development of Space
• PRR — preliminary requirements review
• MUNICS — MUnich Near-Infrared Cluster Survey
• LN2 — liquid N2
• DIB — Diffuse Interstellar Band
• IGI — Interactive Graphics Interpreter
• TAC — The Astronomy Connection
• UVOT — Ultraviolet Optical Telescope
• PDS — Photometric Data Systems
• AC — Ascendant Cusp
• MPIA — Max Planck Institute for Astronomy
• SPSO — Science Program Selection Office
• EED — Extracted Engineering Data
• MPS — Microlensing Planet Search
• SCMS — STScI Code Management System
• SXPHE — SX PhoEnicis
• SZE — Sunyaev-Zeldovich Effect
• HMC — Halley Multicolor Camera
• RRL — RR Lyrae
• MDB — multiplexed data bus

• AMSU — Advanced Mass Spectrometry Unit
• SVA — Soviet Astronomy
• ULIRG — Ultraluminous Infrared Galaxy
• SLOWPOKES — Sloan Low-mass Wide Pairs of Kinematically Equivalent Stars
• ISGRI — INTEGRAL Soft Gamma-Ray Imager
• ORFEUS — Orbiting and Retrievable Far and Extreme Ultraviolet Spectrometer
• ACTS — Advanced Communications Technology Satellite
• WAT — Wide Angle Tail
• CCS — Cool Carbon Star
• ICET — International Center for Earth Tides
• KM — Kilometres
• EBA — Electronics Bay Assembly
• RS — Reed-Solomon error detection
• GRU — Ground Replaceable Unit
• R&R — Reproducibility And Repeatability
• AOSS — AURA Observatory Support Services
• MICO — Multi-year Interactive Computer Almanac
• BHAS — Black Hills Astronomical Society
• BIMA — Berkeley-Illinois-Maryland Array
• NGST — Next Generation Space Telescope
• RSS — Rotating Service Structure
• SSPS — Sky Survey Prototype System
• IAPPP — International Amateur/Professional Photoelectric Photometry
• SDH — science data header
• MMTF — Maryland-Magellan Tunable Filter
• SCO — Software Change Order
• SPC — Short Period Comets
• WFPCII — Replacement For WFPC
• MIPS — Multi-band Imaging Photometer
• OZ — Objective Zenith
• PMS — Pre–Main Sequence
• URPX — Uranian Ring Plane Crossing
• SLSN-R — radioactively powered SLSNe
• UESAC — Uppsala-ESO Survey of Asteroids and Comets
• MTL — Mission Time Line
• SAR — Software Analysis Room
• QBSA — Quarterly Bulletin on Solar Activity
• DCB — Design Change Board
• WBS — Work Breakdown Schedule
• VTT — Vacuum Tower Telescope
• CTA — Computer Technology Associates (GSFC)
• SH — Super Hot
• NDV — NASP Derived Vehicle
• EME — Earth-to-Moon-to-Earth
• ♆ — Neptune
• SSE — Star Selector Encoder
• CCSN — core-collapse supranovæ
• OT — Off-Topic
• ORD — Operations Requirements Document
• NFF — New Firm Formation

• ILRT — intermediate-luminosity red transients
• ♇ — Pluto
• SSC — STEIS Steering Committee
• RMS — Republic Management Systems, Inc.
• SCL — Service Control Level
• CA — Coronagraphic Apodizer
• OAO — Okayama Astrophysical Observatory
• BE — Bright Elements
• RAMBO — Robust associations of massive baryonic objects
• ITT — International Telephone and Telegraph Corporation
• ASW — Address and Synchronization Word
• MUF — Mysterious Unknown Force
• IMAGE — Imager for Magnetopause to Auroral Global Exploration
• FD — File Descriptor
• CRSR — Center for Radiophysics and Space Research
• RSAA — Research School of Astronomy and Astrophysics
• RCB — R Coronae Borealis
• GTC — Gran Telescopio Canario
• ORI — Orbit Replaceable Instrument
• TC — Test Conductor (Controller)
• TMN — Tokyo Meteor Network
• MUSES — MU Space Engineering Spacecraft
• VCC — Virgo Cluster Catalog
• BHC — Black Hole Candidate
• ASWG — ATST (Advanced Technology Solar Telescope) Science Working Group
• MACRO — Monopoles, Astrophysics, and Cosmic Ray Observatory
• STIS — Space Telescope Imaging Spectrograph
• NHICAT — Northern HIPASS CATalog
• WASP — Wide Angle Search for Planets
• STAN — Space Telescope Analysis Newsletter
• TCS — Thermal Control System (Subsystem)
• EOL — Earth Observing Laboratory (formerly ATD)
• EC — Embedded Cluster
• XRF — X-Ray Flash
• LIC — local interstellar cloud
• SIDS — SI Detector System
• SDAS — Scarborough And District Astronomy Society
• NTT — New Technology Telescope
• SITB — System Integration and Testing Branch
• CRAF — Committee on Radio Astronomy Frequencies
• LTT — Luyten Two-Tenths
• VERA — VLBI Exploration of Radio Astrometry
• GGC — Giant Gravity Core
• WMAP — Wilkinson Microwave Anisotrophy Probe
• PGC — Principal Galaxy Catalog
• ARTEMIS — Advanced Relay TEchnology MISsion
• SBIG — Santa Barbara Instrument Group
• URO — Unidentified Red Object
• GAAC — Gloucester Area Astronomy Club
• WINAR — Windsor Observatory Annual Report

• MSE — Milton S. Eisenhower library
• DNS — Double Neutron Star
• NSUM — Non-Spatial Universal Mechanics
• GCI — geocentric intertial
• BLAST — Balloon-borne Large Aperture Submillimeter Telescope
• CAMC — Carlsberg Automatic Meridian Circle
• EMU — Extra-vehicular Mobility Unit
• WSO — World Space Observatory
• SCRT — Stockholm Centimetre Radio Telescope
• B — Barnard
• IYA — International Year of Astronomy
• SUSI — Sydney University Stellar Interferometer
• VPO — Virtual Public Observatory
• SLSN-II — hydrogen-rich SLSNe
• COD — Carbon Oxygen Dwarf
• VSAT — Very Small Angle Tracker
• ODX — Occular Dynamic eXperiment
• MMTO — Multiple Mirror Telescope Observatory
• LTP — Lunar Transient Phenomenon
• CIDA — Cometary Interplanetary Dust Analyzer
• WYAS — West Yorkshire Astronomical Society
• BCEP — Beta CEPhei
• IETI — Invitation to ExtraTerrestrial Intelligence
• ENACS — ESO Nearby Abell Cluster Survey
• SGRA — School of Galactic Radio Astronomy
• BO — Biological Origin
• SARA — Sub-KeV Atom Reflection Analyzer
• NA — Negative Alignment
• EO — Earth Observatory
• WHDF — William Herschel Deep Field
• CASA — Common Astronomy Software Applications
• AP — Astral Projection
• LS — List Star
• UKSA — United Kingdom Space Agency
• SPD — Science Programs Division
• SZA — Sunyaev-Zeldovich Array
• SRC — Science Research Council (formerly DSIR) (U.K.)
• C&T — Communications and Tracking
• LAL — LALande
• TESS — Transiting Exoplanet Survey Satellite
• DMS — Daily Mission Schedule
• EB — Eclipsing Beta
• TR — TRansit
• WFAU — Wide-Field Astronomy Unit
• TAA — Tasmanian Amateur Astronomers
• SET — Science, Engineering and Technology
• MHGL — Mexican Hat Gravitational Lens
• PZT — Photographic Zenith Tube
• CVP — Continuously Variable Planetary
• NGC — New General Catalog

• MARS — MOUNTAIN ASTRONOMICAL RESEARCH SECTION
• WAVE — Wide Area Vertical Expansion
• LMS — Lower Main Sequence
• RS — Resource Scheduler
• TDT — Terrestrial Dynamical Time
• FAT — Filtered Array Technology
• VSSC — Vikram Sarabhai Space Centre
• MPPG — Mars Program Planning Group
• HTFA — High Temperature Flowing Afterglow
• VFIR — Very Far Infra-Red
• EVGA — European VLBI Group for Geodesy and Astrometry
• FRONT — Front Range Observational Network Testbed
• SWIRE — Spitzer Wide-area InfraRed Extragalactic survey
• TT — Terrestrial Time (replaced Ephemeris Time, ET)
• SCCCB — Science Computing Configuration Control Board
• ACIT — Automatic Comet Imaging Telescope
• CBP — Collateral Benefits Plan
• TRACE — Transition Region and Coronal Explorer
• VLM — Very Low Mass
• IRAF — Image Reduction and Analisys Facility
• MPAS — Mornington Peninsula Astronomical Society
• VBT — Vainu Bappu Telescope
• NEAF — North East Astronomy Form
• INFOL — Ingredient Necessary FOr Life
• HKO — Hong Kong Observatory
• WUVC — Wezen Updated Variability Catalogue