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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
• MM — Millimeter
• FTP — File Transfer Protocol
• PIFOV — Planet In Field Of View
• WAXD — Wide-Angle X-Ray Diffraction
• LASER — Light Amplification By Stimulated Emission Of Radiation (cf. Maser)
• A&ARV — Astronomy and Astrophysics Review
• ASAP — As Soon As Possible (pronounced AY-sap)
• JAAVSO — Journal of the American Association of Variable Star Observers
• NHLBI — National Heart, Lung, and Blood Institute
• COBRAS-SAMBA — Cosmic Background Radiation Anisotropy Satellite / Satellite for Measurement of Background Anisotrop
• B-V — Binary - Variable star
• ANSI — American National Standards Institute, Inc.
• LUNNO — Lunar Upper Navigation Nacelle Orb
• E&PSL — Earth and Planetary Science Letters
• ZAND — Z ANDromedae
• CPU — Central Processing Unit
• R&QA — Reliability & Quality Assurance
• MADOO — Madras Observatory Astronomical Observations
• AIAA — American Institute of Aeronautics and Astronautics, Inc.
• QJRAS — Quarterly Journal of the Royal Astronomical Society
• A — Ampere
• ZEPLIN — ZonEd Proportional scintillation in LIquid Noble gases
• ICD — Interface Control Document
• SADE-1 — Solar Array Deploy Electronics-11
• P&SS — Planetary and Space Science
• JASEG — Journal of the Astronomical Society of Egypt
• P/SOS — Payload/Spacecraft Operations Simulator
• M&PS — Meteoritics and Planetary Science
• P-E — Perkin-Elmer Corporation
• PALLO — Publications of the Allegheny Observatory of the University of Pittsburgh
• RF — Radio Frequency
• SAAOC — South African Astronomical Observatory Circular
• BTW — By The Way
• ☿ — Mercury
• DAOAR — Dominion Astrophysical Observatory Annual Report
• WWW — World Wide Web
• XEUS — X-Ray Evolving Universe Spectroscopy Mission
• PABEI — Progress in Astronomy
• WHO — World Health Organization
• JAPAS — Journal of Astrophysics and Astronomy Supplement

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

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

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

• RFI — Radio Frequency Interference
• AMU — Atomic Mass Unit
• SAS — Small Astronomy Satellite
• FY — Fiscal Year
• LOE — Level Of Effort
• ROI — Return on Investment
• CFR — Code of Federal Regulations
• GMT — Giant Magellan Telescope
• NAI — No Action Indicated (Most Favorable Food & Drug Administration Post-inspection Classification)
• 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.
• BCD — Binary-Coded Decimal
• ISS — International Space Station
• CHJAA — Chinese Journal of Astronomy and Astrophysics
• HV — High Voltage
• A/N — Alphanumeric
• HOPPS — Hospital Outpatient Prospective Payment System
• FDA — Food Drug Administration
• CW — Clockwise
• FF — Flat Field
• A&A — Astronomy and Astrophysics
• AOCS — Attitude and Orbit Control System
• NSA — National Security Agency
• MSFC — Marshall Space Flight Center (Huntsville AL)
• FD — Flight Day
• SRL — Space Radar Laboratory
• GR — General Relativity
• CEMDA — Celestial Mechanics and Dynamical Astronomy
• BHB — Black Hole Bang
• LOI — Lunar Orbit Insertion
• BASD — Ball Aerospace Systems Division
• ADA&A — Advances in Astronomy and Astrophysics
• SCA — Shuttle Carrier Aircraft
• JSC — Johnson Space Center (Houston, TX)
• SF — Science Fiction
• DAR — Defense Acquisition Regulation
• AAAS — American Association for the Advancement of Science
• A&G — Astronomy and Geophysics
• AAMI — Association for the Advancement of Medical Instrumentation
• ADIL — Astronomy Data Image Library
• COMSP — Commercial Space
• CSTC — Consolidated Space Test Center
• SPR — Software Problem Report
• NIOSH — National Institute for Occupational Safety and Health
• UCL — University College London
• BER — Bit-Error Rate
• K — Kilo-
• NAS — United States National Academy of Sciences
• MS — Millisecond
• JPL — Jet Propulsion Laboratory (California Institute of Technology) (NASA)
• DOE — United States Department of Energy (government)

• IAU — International Astronomical Union
• NIST — National Institute of Standards and Technology
• STR — Software Test Report
• COBE — Cosmic Background Explorer Satellite (NASA)
• LED — law enforcement desk; light emitting diode
• AAMC — American Association of Medical Colleges
• DMA — direct memory access (computer term)
• HF — High Frequency
• HZ — cycles per second (hertz)
• ATO — Abort To Orbit
• DUNRE — Dunsink Observatory Reprints
• FTE — Full-Time Employee
• CCAFS — Cape Canaveral Air Force Station, an air force base in Florida where NASA launches satellites from.
• AHA — American Hospital Association
• CPI — Continuous Process Improvement
• SME — Solar Mesosphere Explorer
• ESAJ — European Space Agency Journal
• HQ — Headquarters (HDQ Preferred)
• DFRC — Dryden Flight Research Center
• CDM — Cold Dark Matter
• AMA — American Medical Association
• NASP — National Aerospace Plane
• DRS — Data Relay Satellite
• NAM — National Association of Manufacturers
• OS — Operating System
• SNR — Signal-to-Noise Ratio
• HR — HUMAN RESOURCES
• NOAA — National Oceanic and Atmospheric Administration (US)
• IEC — International Electrotechnical Commission
• TLA — Three Letter Abbreviation
• ALEXIS — Array of Low Energy X-ray Imaging Sensors
• ANS — Astronomical Netherlands Satellite
• CHJSS — Chinese Journal of Space Science
• RAS — Royal Astronomical Society
• IR — Infrared
• APO — Apache Point Observatory
• OMB — Office of Management and Budget (U.S.)
• SRM — Solid Rocket Motor
• DOMSAT — Domestic Communications Satellite System
• ADC — Analog-Digital Converter
• WG — Working Group
• EDO — Extended Duration Orbiter
• ASC — Ambulatory Surgery Center
• ST — Space Telescope
• ALS — Advanced Launch System
• COTS — Commercial Off the Shelf Software
• OSSE — Oriented Scintillation Spectrometer Experiment
• BNSC — British National Space Centre
• PR — Problem Report
• ABBOO — Abbadia Observatory Observations

• PDP — Postinsertion Deorbit Preparation
• GEM — Giotto Extended Mission
• OAI — Official Action Indicated (serious Food & Drug Administration post-inspection classification)
• CHSST — Chinese Space Science Technology
• WP — Work Package
• BUBES — Bulletin of the University of Besancon Observatory
• NEMA — National Electric Manufacturer's Association
• 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
• ERBS — Earth Radiation Budget Satellite
• JILA — Joint Institute for Laboratory Astrophysics
• JSAR — Journal of Space Astronomy Research
• NASDA — National Space Development Agency of Japan
• VLF — Very Low Frequency
• MMS — Module Management System
• UTC — Coordinated Universal Time
• CCTV — Closed Circuit Television
• SARA — Society of Amateur Radio Astronomers
• MOSPO — Mobile Satellite Photometric Observatory
• FTC — Federal Trade Commission (U.S.)
• PSI — Pounds Per Square Inch (Static Pressure)
• BPS — bits per second
• FU — Flight Unit
• LARC — Langley Research Center (NASA)
• ND — NASA Document
• SSI — Space Studies Institute
• CRC — Contrôle de Redondance Cyclique (French: Cyclic Redundancy Check)
• KHZ — kilohertz (1000 cycles per second)
• DSCS — U.S. Defense Satellite Communications System
• GAO — Government Accountability Office [formerly the General Accounting Office]
• ASTRA — Advanced Star Tracker
• LM — Lunar Module
• ST — Star Tracker
• CASJ — Canadian Aeronautics and Space Journal
• SVD — Singular Value Decomposition
• MOL — Manned Orbiting Laboratory
• SI — Scientific Investigation
• DUNOP — Dunsink Observatory Publications
• DFRF — Dryden Flight Research Facility
• NBS — National Bureau of Standards (US)
• UV — Ultraviolet (Light)
• DEC — Declination
• BBF — Bursty Bulk Flow
• ROSAT — Roentgen Satellite
• FITS — Flexible Image Transport System
• IEEE — Institute of Electrical and Electronic Engineers, Inc.
• ASRM — Advanced Solid Rocket Motor
• NRC — National Response Center
• LCC — Launch Control Center (KSC)
• CITECH — Center for Information on Technology in Healthcare
• GIF — Graphic Interchange Format

• NORAD — North American Air Defense (Command)
• RISC — Reduced Instruction Set Computer
• N — Newton
• OSHA — Occupational Safety and Health Act (1970)
• D — Diameter
• CMB — Cosmic Microwave Background
• ISAS — Institute of Space and Astronautical Sciences (Japan)
• CASE — computer-automated software engineering
• PM — Project Manager
• ESTEC — European Space Research and Technology Centre
• SST — States Supersonic Transport
• D — Director
• IUS — Inertial UPper Stage (was Interim UPper Stage)
• RTLS — Return To Launch Site
• PDS — Planetary Data System
• DBMS — Data Base Management System
• OIG — Office of Inspector General
• JOP — Jupiter Orbiter Probe
• JANSC — Journal of Astronautical Sciences
• ARMOL — Armagh Observatory Leaflet
• EUVE — Extreme Ultraviolet Explorer (NASA Satellite)
• N — Nitrogen
• BASBR — Bulletin of the Astronomical Society of Brazil
• DSN — Deep Space Network - network of large antennas and communication facilities.
• MECO — Main Engine Cutoff
• GSFC — Goddard Space Flight Center (Greenbelt, MD)
• NIH — NATIONAL INSTITUTE OF HEALTH
• SUMS — Shuttle Upper Atmosphere Mass Spectrometer
• CDRH — Center for Devices and Radiological Health (Food & Drug Administration)
• RSA — Russian Space Agency
• FRR — Flight Readiness Review
• LANL — Los Alamos National Laboratory
• PHRMA — Pharmaceutical Research and Manufacturers of America (formerly PMA, Pharmaceutical Manufacturers Association)
• CASJQ — Canadian Aeronautics and Space Journal Quarter
• TES — Thermal Emission Spectrometer
• FAC — Facilities
• EOL — End Of Line
• EOY — End-Of-Year
• MMDA — Michigan Medical Device Association
• GMT — Greenwich Mean Time (Zulu)
• LGA — Low Gain Antenna
• CHIME — College of Healthcare Information Management Executives
• IPA — Individual Practice Association
• KSC — John F. Kennedy Space Center
• NIST — National Institute of Standards & Technology (US)
• SNII — SuperNova of Type II
• ERS — Earth Resources Satellite
• AGB — Asymptotic Giant Branch
• DIST — Distance
• ESDAC — European Space Data Center

• USP — United States Pharmacopeia
• GE — General Electric American Communications Inc.
• SLAR — Side-Looking Airborne Radar
• DC — Delta Clipper
• PR — Public Relations
• LEM — Lunar Excursion Module
• SIM — Simulator
• TNM — The New Millenium
• RADAR — RAdio Detection And Ranging
• ASCA — Advanced Satellite for Cosmology & Astrophysics
• SSME — Space Shuttle Main Engine
• TM — Telemetry
• ECSS — European Cooperation for Space Standardization
• AMPS — Atmospheric Magnetospheric Plasma System
• SSID1 — Soviet Space Insertion Diverter One
• HSP — High Speed Photometer
• AO — Adaptive Optics
• RSN — Real Soon Now [which may be a long time coming]
• POS — Point of Service Plan
• ESRO — European Space Research Organisation
• AFSD — Air Force Space Division
• NASA — National Aeronautics and Space Administration (US)
• HD — Hilary Duff
• LMSS — Lunar Mapping and Survey System
• 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)
• RTG — Radioisotope Thermoelectric Generator
• RMS — root mean square (preferred over "RMS")
• IIRC — If I Recall Correctly
• PCM — Pulse-Code Modulation
• IDE — Investigational Device Exemption
• SDR — System Design Review
• APJS — Astrophysical Journal Supplement Series
• EDT — Eastern Daylight Time
• MMU — Manned Maneuvering Unit
• TAG — Technical Advisory Group for Biological Control Agents of Weeds
• MGMA — Medical Group Management Association
• NSP — NASA Support Plan
• AW&ST — Aviation Week & Space Technology
• CG — Center of Gravity (DXS)
• ARC — Ames Research Center (NASA)
• PPARC — Particle Physics and Astronomy Research Council
• NASM — National Air and Space Museum
• USGS — United States Geological Survey (DOI)
• WMO — World Meteorological Organization (ICSU)
• MTPE — Mission To Planet Earth
• ROTFL — Roll On The Floor Laughing
• LRB — Liquid Rocket Booster
• AT — Acceptance Test
• UPS — Uninterruptible Power Supply
• 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

• CCD — Charge Coupled Device - a device for the movement of electrical charge.
• NAFTA — North American Free Trade Agreement
• KB — Kilobyte: One thousand and twenty-four bytes kbps kilo bit per second
• PM — Pressurized Module
• CHIPS — Cosmic Hot Interstellar Plasma Spectrometer
• DMERC — Durable Medical Equipment Regional Carrier
• SPARTAN — Shuttle Pointed Autonomous Research Tool for Astronomy
• DSMB — Data Safety Monitoring Board
• AREG — Astronomical Register
• S/N — Serial Number
• FAT — File Allocation Table
• INS — Inertial Navigation System
• MEM — Meteoroid Exposure Module
• CTE — Charge Transfer Efficiency
• MCO — Mars Climate Orbiter
• AURA — Association of Universities for Research in Astronomy, Inc.
• IUE — International Ultraviolet Explorer
• ANEDI — Annals of the Royal Observatory, Edinburgh
• MIT — Massachusetts Institute of Technology (U.S.)
• R/T — Real Time
• ACMAN — Astronomical Contributions from the University of Manchester
• ABHI — Association of British Health-Care Industries
• BH — Black Hole
• ASI — Agenzia Spaziale Italiana
• NASAL — NASA Circular Letter
• DD — Deputy Director
• LPS — Launch Processing System
• DIN — Deutsches Institut für Normung.
• NASAR — NASA Reference Publication
• ASQ — Alpha System Qualification
• CAPS — Cassini Plasma Spectrometer
• SAO — Smithsonian Astrophysical Observatory
• SSTO — Single-Stage-to-Orbit
• GTO — Geostationary Transfer Orbit
• OSCAR — Orbiting Satellite Carrying Amateur Radio
• ESRIN — European Space Research Institute
• SA — Solar Array
• OPF — Orbiter Processing Facility
• EU — Expanded Universe
• UT — University of Texas
• COSTAR — Corrective Optics Space Telescope Axial Replacement
• CFA — Harvard-Smithsonian Center for Astrophysics, USA
• CEMEC — Celestial Mechanics
• CRAF — Comet Rendezvous/Asteroid Fly-by
• BOD — Board of Directors (Budget)
• NSI — NASA Science Internet
• PHASP — Physics and Astrophysics from Spacelab
• CASS — Center for Advanced Space Studies
• AOA — Angle Of Attack
• GSC — Guide Star Catalog

• PRAES — Progress in Aerospace Sciences
• APJ — Astrophysical Journal
• APL — Applied Physics Laboratory (at Johns Hopkins)
• BAO — Beijing Astronomical Observatory
• AG — Astronomische Gesellschaft
• NASAS — NASA Special Publication
• CMP — Competitive Medical Plan
• OSS — Office of Space Sciences
• NCOS — National Commission on Space
• AXAF — Advanced X-Ray Astrophysics Facility
• JEM — Japanese Experiment Module
• WET — Whole Earth Telescope
• NRL — Naval Research Laboratory
• LBNL — Lawrence Berkeley National Laboratory (US)
• FHST — fixed-head star tracker
• SPVW — Spaceview
• ASHP — American Society of Hospital Pharmacists
• MFPE — Mission from Planet Earth
• ZAHB — Zero-Age Horizontal Branch
• ADSPR — Advances in Space Research
• CDT — Connaissance Des Temps
• ACICH — Astronomical Circular
• TAC — Telescope Allocation Committee
• COKON — Commmunications of the Konkoly Observatory Hungary
• ATV — Automated Transfer Vehicle
• ROSA — Romanian Space Agency
• NSSDC — National Space Science Data Center (Greenbelt, MD)
• EBCI — Eclipsing Binaries Circulars
• BAA — British Astronomical Association
• NASAC — NASA Conference Publication
• ASPP — Atmospheric and Space Plasma Physics
• RVU — Relative Value Unit
• GHZ — Gigahertz
• POEM — Polar-Orbiting Earth Mission
• MMI — Man-Machine Interface
• ASPRV — Astrophysics and Space Physics Reviews
• EC — European Community
• WISE — Wide-Field Infrared Survey Explorer
• RA — Right Ascension
• CHARA — Center for High Angular Resolution Astronomy
• ORIG — Origin
• WFF — Wallops Flight Facility
• CQGRS — Classical and Quantum Gravity Supplement
• DUROO — Durham Observatory Observations
• MOA — Microlensing Observations in Astrophysics
• PROM — Programmable Read-Only Memory
• JRASC — Journal of the Royal Astronomical Society of Canada
• MOC — Mars Observer Camera
• PPCAS — Publication of the Pomona College Astronomical Society
• ADS — Astrophysics Data Service

• WAIS — Wide Area Information Server
• MITI — Ministry of International Trade & Industry (Japan)
• AACCS — Analytical Approach to Candidate Constellation Selection
• UT — Universal Time
• MSX — Midcourse Space Experiment
• HHS — Health and Human Services Department
• COCAM — Contributions from the Cambridge Observatory England
• DSS — Deep Space Station
• HP — Hewlett Packard's
• AREPS — Annual Review of Earth and Planetary Sciences
• ASTD — Advanced Space Technology Division
• NRT — near real time
• AIRCO — Air et Cosmos
• OV — Orbital Vehicle
• GCP — Good Clinical Practice
• PASAU — Proceedings of the Astronomical Society of Australia
• PROE — Publications of the Royal Observatory of Edinburgh
• CDSF — Commercially Developed Space Facility
• COWRO — Contributions from the Wroclaw Astronomical Observatory
• ADFRF — Ames-Dryden Flight Research Facility
• ASM — American Society for Microbiology
• SDAC — Solar Data Analysis Center
• AP — Array Processor
• CON — Certificate Of Need
• ISU — International Space University
• MVM — Mariner Venus/Mercury
• BTOK — Bulletin of the Tokyo Astronomical Observatory
• AEXPR — Astronomy Express
• VMS — Virtual Memory System
• STICA — Space Technology Industrial and Commercial Applications
• AMS — American Meteor Society
• ASTHE — Astronomical Herald
• COLPL — Communications of the Lunar and Planetary Laboratory
• LOX — Liquid Oxygen
• SPART — Space Research and Technology
• RCS — Radar Cross Section
• EIA — Extended Interaction Amplifier
• FIRSSE — Far Infrared Sky Survey Experiment
• SAR — synthetic aperture radar (satellite)
• ORROE — Occasional Reports of the Royal Observatory, Edinburgh
• WGPSN — Working Group for Planetary System Nomenclature
• ADEPS — Advances in Earth and Planetary Sciences
• APM — Attached Pressurized Module (a.k.a. Columbus)
• IPAC — Infrared Processing and Analysis Center
• APH — Astroparticle Physics
• ESOC — European Space Operations Center
• MDI — Michelson Doppler Imager
• UL — Underwriters Laboratory
• AFSCN — Air Force Space Command network
• DYERE — Dyer Observatory Reprints

• AE — Adverse Event
• VBR — Variable Bit Rate (ATM)
• VLSI — Very-Large-Scale Integration
• DEACO — Dearborn Observatory Contributions
• ASA — Astronomical Society Of The Atlantic
• KM — Kilometer (1,000 meters)
• CDC — Centers for Disease Control
• AGU — American Geophysical Union
• OSSA — Office of Space Sciences and Applications
• ADCBU — Astronomical Data Center Bulletin
• MPL — Mars Polar Lander
• SEOS — Synchronous Earth Observation Satellite
• Z — Zenith
• HTH — Hope This Helps. Email abbreviation when replying to requests. Potentially counter-productive if the recipient doesn't understand what it means...
• ITU — Infrared Telescope Unit
• MHW — Ministry of Health and Welfare
• RCS — Reaction Control System/Subsystem
• LASCO — Large Angle Spectrometric Coronograph
• CM — Command Module
• SAPS — Sub Auroral Polarization Streams
• LCROSS — Lunar CRater Observation and Sensing Satellite
• JD — Julian Date
• RFNA — Red Fuming Nitric Acid
• BLOB — Binary Large Object
• JASS — Journal of Astronomy and Space Sciences
• XRD — X-Ray Diffraction
• TEM — Transverse Electromagnetic
• EAA — Encyclopedia of Astronomy and Astrophysics
• CRB — Change Review Board
• BPSK — binary phase shift keying
• COVVO — Contributions of the Van Vleck Observatory
• LEGRI — Low Energy Gamma-Ray Imager
• VAI — Voluntary Action Indicated (Food & Drug Administration postaudit inspection classification)
• M&R — Maintenance and Refurbishment
• SPP — Solar Physics Payload
• RAZEL — Range, Azimuth and Elevation
• SRB — Solid Rocket Boosters
• RALPH — Reduction and Acquisition of Lunar Pulse Heights
• MMA — Minnesota Medical Association
• HIRA — Health Industry Representatives Association
• GOES — Geostationary Operational Environmental Satellite
• NIZRE — Nizamiah Observatory Reprints
• CQGRA — Classical and Quantum Gravity
• ALPOJ — Association of Lunar and Planetary Observers Journal
• GHTF — Global Harmonization Task Force
• ARISTOTELES — Applications and Research Involving Space Technologies Observing the Earth's Field from Low Earth Orbiting Satellite
• AMPS — Atmosphere, Magnetosphere & Plasmas in Space
• FS — Far Side
• ETLA — Extended Three Letter Acronym
• OVS — Observation of Variable Stars

• JAMA — Journal of the American Medical Association
• ICE — International Cometary Explorer
• ANLUN — Annals of the Observatory of Lund
• SPMAR — Space Markets
• SPRBU — Space Research Bulgaria
• MSFN — Manned Space Flight Network
• CPI — characters per inch
• PRCO — Publications of the Riverview College Observatory
• DDCMP — Digital Data Communications Message Protocol
• SSBUV — shuttle solar backscatter ultraviolet (radiometer)
• EPS — Encapsulated Postscript
• MHD — Magnetohydrodynamic
• NABR — National Association for Biomedical Research
• VSOP — VLBI Space Observatory Program
• BSI — British Standards Institution
• JBAS — Journal of the British Astronomical Society
• PAM — Payload Assist Module
• PLICO — Publications of Lick Observatory
• NOAO — National Optical Astronomy Observatories (Tucson, AZ)
• DUDOR — Dudley Observatory Reports
• CV — Cataclysmic Variable
• TCPA — Time for Closest Point of Approach
• CMA — Chemical Manufacturers Association
• F — Degrees Fahrenheit
• PHA — Physics And Astronomy
• ONRAS — Occasional Notes of the Royal Astronomical Society
• COMAP — Comments on Astrophysics
• BKOAS — Bulletin of Korean Astronomical Society
• ISO 14155 — Current Widely Accepted Standard
• ANDUD — Annals of the Dudley Observatory
• SLC — Space Launch Complex
• JDSO — Journal of Double Star Observations
• MELOO — Melbourne Observatory Observations
• BASI — Bulletin of the Astronomical Society of India
• ANHAR — Annals of Harvard College Observatory
• ASTL — Astronomy Letters
• CIRCE — Confusion-limited Infrared Cosmology Explorer
• PA — Popular Astronomy
• Z — Zulu (Greenwich mean time)
• LSR — Local Standard of Rest
• IMBH — Intermediate-Mass Black Hole
• NDA — New Drug Application
• SR — Special Relativity
• MNRAS — Monthly Notices of the Royal Astronomical Society
• ESOSP — European Southern Observatory Scientific Preprints
• PASA — Publications of the Astronomical Society of Australia
• LF — Luminosity Function
• PMUNO — Publications of the Munich Observatory
• ANMN — Antarctic Meteorite Newsletter
• CRPL — Cosmic Ray Physics Laboratory

• POMIC — Publications of Michigan Observatory
• SIM — Space Interferometry Mission
• ANLOW — Annals of the Lowell Observatory
• VAB — Vertical Assembly Building
• COSRE — Cosmic Research
• NASO — North American Space Operations
• TTA — Time to Apogee
• MCC — Mission Control Center (JSC)
• MASER — microwave amplification by stimulated emission of radiation
• GPC — General Purpose Computer
• AOA — Abort Once Around (shuttle Abort Plan)
• COBOS — Contributions from the Bosscha Observervatory
• FDR — Final Design Review
• NEODYS — Near Earth Objects Dynamic Site
• COROE — Communications from the Royal Observatory Edinburgh
• JAHH — Journal of Astronomical History and Heritage
• SIDC — Sunspot Index Data Center
• JAC — Joint Astronomy Centre
• EBS — Electron Bombarded Silicon
• USRA — Universities Space Research Association
• PN — Planetary Nebula
• PHS — Public Health Service (U.S.)
• SDI — Strategic Defense Initiative
• BPI — bits per inch
• PDREO — Publications of the Dresden Observatory
• ANCAP — Annals of the Cape Observatory
• PCA — Proportional Counter Array
• GLOMR — Global Low-Orbiting Message Relay
• ESOAR — European Southern Observatory Annual Reports
• JBAA — Journal of the British Astronomical Association
• E&S — Earth and Space
• PAAS — Publications of the American Astronomical Society
• FCPH — Fundamentals of Cosmic Physics
• NMI — Nautical Mile
• CIBAA — Circular of the British Astronomical Association
• LLO — Low Lunar Orbit
• CADC — Canadian Astronomy Data Centre
• IRSA — Infrared Science Archive
• BBXRT — Broadband XRay Telescope
• BAAS — Bulletin of the American Astronomical Society
• DSSN — Delta Scuti Star Newsletter
• EXA — Experimental Astronomy
• COLIC — Contributions of Lick Observatory
• AMIA — The American Medical Informatics Association
• APOD — Astronomy Picture of the Day
• ANDEA — Annales of the Dearborn Observatory
• K — Kelvin (absolute temperature scale)
• AZ — Azimuth
• NCI — National Cancer Institute, USA
• PASJ — Publications of the Astronomical Society of Japan

• AAT — Anglo Australian Telescope
• COARM — Contributions from the Armagh Observatory
• K — Kilogram
• AUJPA — Australian Journal of Physics Astrophysical Supplement
• CHA&A — Chinese Astronomy and Astrophysics
• MMT — Multiple Mirror Telescope
• MWOAR — Mount Wilson Observatory Annual Report
• ADVAMED — Advanced Medical Technology Association
• IUEEN — IUE ESA Newsletter
• OTV — Orbital Transfer Vehicle
• LHEA — Laboratory for High Energy Astrophysics
• TIFF — Tag Image File Format
• PCARS — Publication of COMU Astrophysics Research Center
• PNAOJ — Publications of the National Astronomical Observatory of Japan
• CEA — Center for EUV Astrophysics
• CME — Coronal Mass Ejection (usually Sun)
• IDL — Interactive Data Language
• PDR — Photo Dissociation Region
• EEXSC — Earth and Extraterrestrial Sciences
• COBRN — Contributions of the Public Observatory and Planetarium in Brno
• SEDS — Students for the Exploration and Development of Space
• LBLRR — LBL Research Review
• ARCHS — Archaeoastronomy Supplement
• TOMS — Total Ozone Mapping Spectrometer (satellite Instrument)
• ASMT — American Society for Medical Technology
• IRAJS — Irish Astronomical Journal Supplement
• CNB — Cosmic Neutrino Background
• PLAST — Planetary Astronomy
• MDD — Medical Device Directive
• AACC — American Association for Clinical Chemists
• ATDRS — Advanced Tracking and Data Relay Satellite
• AAVSO — American Association of Variable Star Observers
• MVI — Microgravity Vestibular Investigation
• FSK — Frequency Shift Keying
• OBC — Onboard Computer
• ESIS — ESA Space Information Systems
• COSSE — Cosmic Search Summer
• PGLO — Publications of the Goethe Link Observatory
• LR — Long Radius
• ESOSR — European Southern Observatory Scientific Report
• DOY — Day of Year
• MECO — Magnetospheric Eternally Collapsing Object
• RQQ — Radio Quiet Quasar
• PMANO — Publications of the Manila Observatory
• CFF — Columbus Free Flyer
• CIUO — Circular of the Union Observatory Johannesburg
• EUV — Extreme Ultraviolet Vertical
• EVA — Extra-Vehicular Activity
• CPAF — Cost Plus Award Fee (Type of Contract)
• WD — White Dwarf

• ASSU — Annual Scientific Supplement to Urania
• CGRO — Compton Gamma-Ray Observatory
• IRAJ — Irish Astronomical Journal
• ACRV — Assured Crew Return Vehicle
• CODDO — Communications from the David Dunlap Observatory
• APHA — American Pharmaceutical Association
• UPPAN — Uppsala Astronomical Observatory Annals
• HST — Hubble Space Telescope
• JBRE — Jodrell Bank Reprints
• COASP — Comments on Astrophysics and Space Physics
• SIMCAT — simulate observations using space catalog
• COSKA — Contributions of the Astronomical Observatory Skalnate Pleso
• OAP — Odessa Astronomical Publications
• JAD — Journal of Astronomical Data
• JCAP — Journal of Cosmology and Astro-Particle Physics
• ESABU — European Space Agency Bulletin
• DAO — Dominion Astrophysical Observatory (Victoria, BC, Canada)
• VDU — Video Display Unit
• MERIS — Medium Resolution Imaging Spectrometer
• AREP — Astronomy Reports
• BCRAO — Bulletin Crimean Astrophysical Observatory
• LM&SS — Lunar Mapping and Scientific Survey
• ALAMO — Automated Lunar and Meteor Observatory
• JIMO — Journal of the International Meteor Organization
• OPM — Outer Planet Mission
• JHAS — Journal for the History of Astronomy Supplement
• CAMRE — Cambridge Observatories Reprints
• NASPY — North American Society of Electro Physiology and Pacing
• FWHM — Full Width at Half Maximum
• M&P — Materials and Processes
• ESO — European Southern Observatory
• ND — Neutral Density
• SERC — Science and Engineering Research Council
• ARA&A — Annual Review of Astronomy and Astrophysics
• USNO — United States Naval Observatory
• SFR — Star Formation Rate
• SDIO — Strategic Defense Initiative Organization
• TUV — Technische Uberwachungs-Vereine
• IQSY — International Quiet Sun Year
• IDTF — Independent Diagnostic Testing Facility
• MDS — Medium Deep Survey
• MELAR — Melbourne Observatory Annual Report
• CBER — Center for Biologics Evaluation and Research
• PVO — Pioneer Venus Orbiter
• LICOB — Lick Observatory Bulletin
• PBEIO — Publications of the Beijing Astronomical Observatory
• NCC — Network Control Center (GSFC)
• COROT — Convection Rotation and Planetary Transits
• MCD — Minimum Cost Design
• ESPI — European Space Policy Institute

• ID — IDentifier
• JASAC — Japan Astronomical Study Association Circulars
• S/W — Software
• ELT — Extremely Large Telescope
• ISN — International Supernovae Network
• 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
• ALPO — Association of Lunar and Planetary Observers
• BIO — Biotechnology Industry Organization
• AUASS — Arab Union for Astronomy and Space Sciences
• FAHS — Federation of American Health Systems
• ANS — Astro News Service
• RAE — Radio Astronomy Explorer
• ISY — International Space Year (1992)
• VO — Virtual Observatory
• LPL — Lunar and Planetary Laboratory
• SRD — Software Requirements Document
• JBAN — Jodrell Bank Annals
• LAN — Local Apparent Noon
• LOD — Length of Day
• IUENN — IUE NASA Newsletter
• PDDO — Publications of the David Dunlap Observatory
• UVS — Ultraviolet Spectrometer
• JAAME — Japanese Association for the Advancement of Medical Equipment
• CIT — California Institute of Technology (Pasadena, CA)
• MEPAG — Mars Exploration Program Analysis Group
• PPN — Proto-Planetary Nebula
• PVVO — Publications of the Van Vleck Observatory
• CO — Contracting Officer
• IRAS — Infrared Astronomy Satellite
• TMT — Thirty-Meter Telescope
• DOH — Department of Health (various countries)
• SBNC — Small Bodies Names Committee
• IPC — Interprocess Communication
• JASV — Journal of the Astronomical Society of Victoria Melbourne
• G — Gravity
• PDUFA — Prescription Drug User Fee Act (1992, U.S.)
• NRAOR — National Radio Astronomy Observatory Reprints
• TPS — Thermal Protection System
• CDS — Coronal Diagnostic Spectrometer
• JKAS — Journal of Korean Astronomical Society
• MM — Memory Module
• ANSAO — Annals of the Astrophysical Observatory of the Smithsonian Institution
• SETI — Search for Extraterrestrial Intelligence
• IGM — Intergalactic Medium
• NEOIC — Near Earth Object Information Center
• NEWAR — New Astronomy Review
• MSSS — Maui Space Surveillance Site
• OSTA — Office of Space and Terrestrial Applications (US NASA; now OAST)
• ADEC — Astrophysics Data Centers Executive Council
• ESTP — European Space Technology Platform

• CRARE — Cracow Observatory Reprints
• MSSSO — Mount Stromlo and Siding Spring Observatories
• PCINO — Publications of the Cincinnati Observatory
• TAC — Time Allocation Committee
• STSCI — Space Telescope Science Institute
• CSA — Canadian Standards Association (like UL)
• ISEE — International Sun-Earth Explorer
• A&AS — Astronomy and Astrophysics Supplement Series
• HCIS — Health Care Information System
• PERCO — Perkins Observatory Contributions
• AFGWC — Air Force Global Weather Central (U.S.)
• WHT — William Herschel Telescope
• VSOLJ — Variable Star Observers League in Japan
• PCS — Pointing Control System
• IOTA — International Occultation Timing Association
• GRC — Glenn Research Center
• STO — Solar Terrestrial Observatory
• NCAR — National Center for Atmospheric Research (US)
• OPAG — Outer Planets Assessment Group
• LAT — Large Area Telescope
• DSP — Defense Support Program
• RECONS — Research Consortium on Nearby Stars
• PAMELA — Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics
• SNAP — Supernova / Acceleration Probe
• LBT — Large Binocular Telescope
• ASCRS — American Society of Cataract and Refractive Surgery's
• CSBN — Committee for Small-Body Nomenclature
• CARA — Center for Astrophysical Research in Antarctica
• TV — Thermal Vacuum
• OEJV — Open European Journal on Variable Stars
• WR — Western Range
• MASSMEDIC — Massachusetts Medical Device Industry Council
• LRSP — Living Reviews in Solar Physics
• LASS — large-amplitude space simulator
• JHA — Journal for the History of Astronomy
• VDS — Vereinigung der Sternfreunde
• SST — Spectroscopic Survey Telescope
• JHIT — Joint Healthcare Information Technology Alliance
• TDRSS — Tracking and Data Relay Satellite System
• MRSR — Mars Rover Sample Return
• HRI — High Resolution Imager
• IAPM — International Association of Medical Prosthesis Manufacturers
• CHPA — Consumer Healthcare Products Association
• SOT — Solar Optical Telescope
• AAOPR — Anglo-Australian Observatory Epping Preprint
• NAOJ — National Astronomical Observatory of Japan
• CARA — California Association for Research in Astronomy
• MMKMO — Memoirs Of The Kakioka Magnetic Observatory
• CL — Command Language
• KPNO — Kitt Peak National Observatory (Tucson, AZ)

• IUEDAC — IUE satellite Data Analysis Center
• ADIS — Astrophysics Data and Information Services
• ARC — Astrophysical Research Consortium
• TPF — Terrestrial Planet Finder
• NEEDS — NASA end-to-end data system
• ECS — Environmental Control System (Subsystem)
• RSO — Resident Space Object
• S/N — Signal-to-Noise ratio
• TOKRE — Tokyo Astronomical Observatory Reprints
• JAXA — Japan Aerospace Exploration System
• IFA — Institute for Astronomy
• ADC — Astronomical Data Center
• COPER — Contributions of Perkins Observatory
• IU — Interface Unit
• CIRRIS — Cryogenic Infrared Radiance Instrument for Shuttle
• FDLI — Food and Drug Law Institute
• NAMN — North American Meteor Network
• AAO — Anglo-Australian Observatory
• JAPA — Journal of Astrophysics and Astronomy
• PSC — Point Source Catalog
• MS — Master Schedule
• ISSRT — Israel Space Research and Technology Information Bulletin
• LH — Liquid Hydrogen
• COPRE — Copenhagen University Observatory Reprints
• OG — Original Gravity
• ASAIO — American Society for Artificial Internal Organs
• RSNA — The Radiological Society of North America, Inc.
• ONR — Office of Naval Research (U.S.)
• PHA — Potentially Hazardous Asteroid
• APJL — Astrophysical Journal Letters
• ISBRV — International Space Business Review
• VBO — Vainu Bappu Observatory
• GPE — Gravitational Potential Energy
• MEV — Mars Excursion Vehicle
• CYSF — Cape York Space Facility
• FTL — Faster Than Light
• VVORE — Van Vleck Observatory Reprints
• DSSC — Deep Space Station Complex
• KCAO — Kumamoto Civil Astronomical Observatory
• SO/SI — space operations and scientific investigation
• PLANEMO — Planetary Mass Object
• NERVA — Nuclear Engine for Rocket Vehicle Application
• LHA — Local Hour Angle
• NRAO — National Radio Astronomy Observatory (Greenbank, WV)
• RASC — Royal Astronomical Society of Canada
• ATLAS — ACTIVITIES Atmospheric Laboratory for Applications and Science
• EVN — European VLBI Network
• LRO — Lunar Reconnaissance Orbiter
• MTC — Man-Tended Capability
• HIAA — Health Insurance Association of America

• SM — Secondary Mirror
• PSPRO — Publications of the Sproul Observatory
• WEBT — Whole Earth Blazar Telescope
• SPIRE — Spectral Infrared Rocket Experiment
• JBIS — Journal of the British Interplanetary Society
• SZA — Solar Zenith Angle
• LPO — La Palma Observatory
• CATS — Cheap Access to Space
• ANTOK — Annals of the Tokyo Astronomical Observatory
• LAC — Lockheed Aircraft Corporation
• HRSA — U.S. Health Resources and Services Administration
• INDA — Investigational New Drug Application
• PSLV — Polar Satellite Launch Vehicle (Indian Space Research Organization; India)
• SAAO — South African Astronomical Observatory
• TIE — Telescopes in Education
• CMS — Correctional Medical Services
• WIMP — Weakly Interacting Massive Particle
• EOS — Earth Observing System (U.S.)
• LPI — Lunar and Planetary Institute
• OASH — Office of the Assistant Secretary for Health
• PEPI — Physics of the Earth and Planetary Interiors
• AR — Active Region
• NSTL — National Space Technology Laboratories (NASA)
• RGO — Royal Greenwich Observatory
• ODF — Orbit Determination Facility
• ARKOD — Annual Report of the Kodaikanal Observatory
• SPIRIT — Spatial Infrared Telescope
• MAFI — Medical Alert Foundation International
• MIAA — Medical Industry Association of Australia
• VTVL — Vertical Takeoff Vertical Landing
• RNAOJ — Report of the National Astronomical Observatory of Japan
• ISTEC — International Small Telescope Cooperative
• MMH — Monomethyl Hydrazine
• CNSA — China National Space Administration
• SSRMS — Space Station Remote Manipulator System
• D — Directive
• POMIN — Publications of the Astronomical Observatory University of Minnesota
• DSMA — Division of Small Manufacturers Assistance
• QSO — Quasar|Quasi-Stellar Object
• HIDA — Health Industry Distributors Association
• MOTIF — Maui Optical Tracking and Identification Facility
• IPEM — Institute of Physics and Engineering in Medicine
• TEP — Transits of Extrasolar Planets
• CU — Calibration Unit
• SERAJ — Serbian Astronomical Journal
• CCR — Cost-Charge Ratio
• HIS — Health Information Systems
• SPOT — Satellite Pour l'Observation de la Terre (France)
• HIBCC — Health Industry Business Communications Council
• UW — University of Wisconsin

• EGG — Evaporating Gaseous Globule
• LAPSS — Large-Area Pulse Solar Simulator
• GLP — Good Laboratory Practice
• SHA — Sidereal Hour Angle
• NCSC — National Council of Senior Citizens
• GOES — Geostationary Orbiting Environmental Satellite
• IDT — Investigation Definition Team
• EGRET — Energetic Gamma Ray Explorer Telescope
• FIR — Far Infrared
• NUSTAR — Nuclear Spectroscopic Telescope Array
• SGF — SpaceGuard Foundation
• SPICE — Survey Probe Infrared Celestial Experiment
• NESSI — Near Earth Space Surveillance Initiative
• LLAGN — Low-Luminosity Active Galactic Nucleus
• SO — Space Operations
• SEF — Space Environmental Facility
• BBT — Big Bang Theory
• SEB — Systems Engineering Branch
• PC — Planetary Camera
• OAO — Orbital Astronomical Observatory
• AVSOM — American Association of Variable Stars Observers Monographs
• CEC — Commission of the European Communities ;
• S/C — Spacecraft
• ANOLL — Annals of the Private Observatory of Lucien Libert
• PROPAC — Prospective Payment Assessment Commission
• OMS — orbital maneuvering system
• AO — announcement of opportunity
• OARE — Orbital Acceleration Research Experiment
• PSK — Phase Shift Key
• CD-ROM — compact disc-read only memory
• CLMA — Clinical Laboratory Management Association
• NAHIT — National Alliance for Health Information Technology
• PMT — Photo Multiplier Tube
• STOMS — Space Telescope Observatory Management System
• SPPOL — Space Policy
• CFC — Chloroflourocarbon
• PMC — Permanently Manned Capability (of Space Station)
• UARS — Upper Atmosphere Research Satellite (NASA)
• NAS — Norsk Astronomisk Selskap
• ICH — International Conference of Harmonization
• SSI — Solid-State Imager
• NRO — U.S. National Reconnaissance Office
• FRC — Flight Research Center
• SPAC — State Pharmaceutical Administration of China
• E — Earth
• JRASN — Journal of the Royal Astronomical Society of New Zealand
• HFMA — Healthcare Financial Management Association
• SRAG — Space Radiation Analysis Group
• ECRI — Emergency Care Research Institute
• MOS — Metal Oxide Semiconductor (FET Devices)

• HIMSS — Healthcare Information and Management Systems Society
• SUNY — State Universityrsity of New York
• SPED — Space Education
• UGC — Uppsala General Catalog
• EFPIA — European Federation of Pharmaceutical Industries and Associations
• STACC — Standard Telemetry And Communications Component
• USPHS — United States Public Health Service
• JCCT — Joint Commission on Commerce and Trade (US-China)
• SSPF — Space Station Processing Facility
• ICD-9-CM — International Classification of Diseases, 9th Edition
• MJD — Modified Julian Date
• USNOC — United States Naval Observatory Circulars
• ET — External Tank
• PI — Principle Investigator
• CCAS — Cape Canaveral Air Station
• MOPH — Ministry of Public Health
• UCLA — Harbor-University of California Los Angeles
• BHB — Blue Horizontal Branch
• RAD — Radiant
• MTPPI — Medical Technology and Practice Patterns Institute
• MITTS — Mobile Igor Tracking Telescope System
• JCAHO — Joint Committee on the Accreditation of Healthcare Organizations
• LAMMR — large-antenna multichannel microwave radiometer
• APC — Ambulatory Payment Class
• EPIC — Earth Polychromatic Imaging Camera
• NIR — Near Infrared
• AMANDA — Antarctic Muon And Neutrino Detector Array
• SANS — Stellar Autonomous Navigation System
• OHTA — Office of Health Technology Assessment
• MEDEC — Medical Devices Canada
• FIPS — Fast Imaging Plasma Spectrometer
• SSS — Spinning Sun Sensor
• RGOO — Royal Greenwich Observatory Observations
• DRG — Diagnosis-Related Groups
• OWL — Overwhelmingly Large Telescope
• RA — Regulatory Affairs
• DOAMS — distant-object attitude-measuring system
• ICCD — Intensified Charge-Coupled Device
• AU — Alternate Universe
• ROE — Royal Observatory, Edinburgh
• HSQB — Health Standard and Quality Bureau
• ISTAHC — International Society of Technology Assessment in Health Care
• ASP — Astronomical Society of the Pacific
• CFIT — Controlled Flight into Terrain
• TIROS — Television InfraRed Observation Satellite (POES)
• TIMED — Thermosphere Ionosphere Mesosphere Energetics and Dynamics
• UPPOR — Uppsala Astronomical Observatory Reports
• ATM — Apollo Telescope Mount (on Skylab)
• M — Messier
• EUDRA — European Drug Regulatory Authorities Network

• AAONW — Anglo-Australian Observatory Epping Newsletter
• PDA — Parenteral Drug Association
• MIL-STD — Military Standard
• MST — Mean Solar Time
• WRORE — Wroclaw Astronomical Observatory Reprints
• DH — Data Handling
• LAIRT — Large-Aperture Infrared Telescope
• DMF — Data Management Facility
• DDORE — David Dunlap Observatory Richmond Hill Reprints
• DCT — Discrete Cosine Transformer
• NEAR — Near-Earth Asteroid Rendezvous
• RSU — Rate Sensor Unit
• SYDOP — Sydney Observatory Papers
• CENELEC — European Committee for Electromechanical Standardisation
• VHT — Very High Temperature
• ASCP — American Society for Clinical Pharmacology and Therapeutics
• POSS — Palomar Observatory Sky Survey
• SDSS — Sloan Digital Sky Survey
• COWAT — Contributions of the University of Waterloo Observatory
• SCP — Supernova Cosmology Project
• PST — Personal Solar Telescope
• TOY — Time of Year
• SRON — Space Research Organization of the Netherlands
• SDO — Scattered Disk Object
• ETR — Eastern Test Range (ESME Preferred)
• CBI — Confederation of British Industries
• LSF — Line Spread Function
• ESAST — European Space Agency Scientific Technical Review
• RAA — Relative Azimuth Angle
• AIPS — Astronomical Image Processing System
• STERE — Steward Observatory Reprints
• RGB — Red Giant Branch
• SF — Square Foot
• LLC — Limited Liability Partnership
• MPEC — Minor Planet Electronic Circular
• ASC — Agence Spatiale Canadienne
• LS/ST — Light Shield/Star Tracker
• UNOOSA — United Nations Office for Outer Space Affairs
• QBO — Quasi-biennial Oscillation (atm.)
• AVSOA — American Association of Variable Stars Observers Abstracts
• ORA — FDA's Office of Regulatory Affairs
• SEM — space environment monitoring
• PDR — Physician’s Desk Reference
• MDDI — Medical Device and Diagnostics Industry
• DEM — Differential Emission Measure
• SNR — Super Nova Remnant
• DPS — Division for Planetary Sciences
• DG — Data Group
• AVSOQ — American Association of Variable Stars Observers Quarterly Reports
• AASPP — Astrononomy and Astrophysics Series

• CST — Constant-Separation Traversing
• IES — Institute of Environmental Sciences
• CBR — Cosmic Background Radiation
• FDAMA — FDA Modernization Act of 1997
• ASH — American Society of Hematology's
• STATS — star tracker alignment test set
• SAC — Solar Array Carrier
• CHI — California Healthcare Institute
• PPRC — Physician Payment Review Commission
• SOLSTICE — Solar Stellar Irradiance Comparison Experiment
• TOKAB — Tokyo Astronomical Bulletin
• HPB — Health Protection Board (Canada)
• BEV — Billion Electron Volts
• CCR — Configuration Change Request
• GG — Gravity Gradient
• VAB — Vehicle Assembly Building
• SIRTF — Shuttle InfraRed Telescope Facility
• EFCS — Earth-fixed coordinate system
• OHP — Observatoire de Haute-Provence
• HUT — Hopkins Ultraviolet Telescope
• NHIB — National Health Insurance Bureau (Taiwan)
• DEED — Minnesota Department of Employment and Economic Development
• HOTOL — Horizontal Takeoff and Landing Launcher
• GRO — Gamma Ray Observatory (NASA)
• AGPS — Assisted Global Positioning System
• ASSA — Astronomical Society of South Africa
• NIGMS — National Institute Of General Medical Sciences (NIH)
• BAVSO — Bulletin of the American Association of Variable Stars Observers
• INTEGRAL — International Gamma-Ray Astrophysics Laboratory
• NAG — Numerical Algorithms Group Inc.
• AGILE — Astro-rivelatore Gamma a Immagini Leggero
• NLN — National League for Nursing
• MEI — Medical Economic Index
• JETRO — Japan External Trade Organization
• QSR — Quality System Regulation
• CPFF — Cost Plus Fixed-Fee
• GHRS — Goddard High Resolution Spectrograph
• HTML — Hyptertext Markup Language
• PYERO — Publications of the Yerkes Observatory
• CSG — Council of State Governments
• CEV — Crew Exploration Vehicle
• WAXS — Wide Angle X-ray Scattering
• MEDGV — Germany's Medical Equipment Safety Law
• MOSS — Market-Oriented Sector Selective
• FOC — Faint Object Camera
• PLR — Planetary Report
• BD — Bonner Durchmusterung
• HGA — High Gain Antennae
• MPS — Mission Planning System
• SSDF — Space Science Development Facility

• ISM — Interstellar Medium
• DIN — Deutsches Institut fur Normung
• DCR — Document Change Request
• JET-X — Joint European Telescope for X-ray astronomy
• PBRN — Publications of the Astronomical Institute of the University of Borneo
• WFC — Wide-Field Camera
• IOLM — International Organization of Legal Metrology
• PAB — Publications of The Astrophysics Branch Ottawa
• MTF — Modulation transfer function.
• CEAB — Central European Astrophysical Bulletin
• HIB — Health Insurance Bureau (Japan)
• SOHO — SOlar and Heliospheric Observatory
• APINV — Astrophysical Investigations
• HRMS — High Resolution Microwave Survey (SETI, Project Phoenix)
• TDRS — Tracking and Data Relay Satellites
• SG — Shattered Galaxy (game)
• LNSP — Lecture Notes and Supplements in Physics
• MDMA — Medical Device Manufacturers Association
• STSKY — Star Sky
• JFMDA — Japan Federation of Medical Device Associations
• UHMW — Ultra High Molecular Weight
• ECCLS — European Committee on Clinical Laboratory Standards
• ROAN — Royal Observatory Annals
• ADASS — Astronomical Data Analysis Software and Systems
• SAC — Saguaro Astronomy Club
• AMDM — Association of Medical Diagnostics Manufacturers
• DADS — Data Archive and Distribution System
• QSIT — Quality System Inspection Technique
• ASIM — American Society of International Medicine
• BATSE — Burst and Transient Source Experiment
• PYUNO — Publications of the Yunnan Observatory
• POVRO — Publications of the Owens Valley Observatory
• LIGO — Laser Interferometer Gravitational-Wave Observatory
• SUSIM — Solar Ultraviolet Spectral Irradiance Monitor
• TTP — Time to Perigee
• TR — Tape Recorder
• MACHO — Massive Compact Halo Object
• AIMBE — American Insitute for Medical and Biological Engineering
• PVASO — Publications of the Vassar College Observatory
• BIS — British Interplanetary Society
• ADU — Astronomical Distance Unit
• IMDA — Independent Medical Distributors Association
• NAMES — National Association of Medical Equipment Services
• PPQA — Pre-Product Quality Assurance
• STMAP — Studies in Mathematical Physics
• MPBU — Minor Planet Bulletin
• DNA — Digital Network Architecture
• RA — Research Assistant
• WILOO — Williamstown Observatory Observations
• SST — Space Surveillance and Tracking

• POHEL — Publications of the Astronomical Observatory Helsinki
• SI — Science Instrument
• ATC — Absolute Time Command
• PWASO — Publications of the Washburn Observatory
• PKAS — Publication of the Korean Astronomical Society
• MMO — Mercury Magnetospheric Orbiter
• RAPS — Regulatory Affairs Professional Society
• SPRRE — Sproul Observatory Reprints
• MMAAR — Maria Mitchell Association Annual Report
• DWE — Doppler Wind Experiment
• TCE — Thermal Control Electronics
• VLA — Very Large Array
• IGY — International Geophysical Year (1 July 1957 - 31 December 1958)
• JGR — Journal of Geophysical Research
• SOPH — Solar Physics
• PT — Pass-Through
• ADSAC — Advanced Series in Astrophysics and Cosmology
• MMRAS — Memoirs of the Royal Astronomical Society
• PLAWO — Publications of Laws Observatory
• CD — Cordoba Durchmusterung
• XRT — X-Ray Telescope
• PRO — Professional Review Organization
• MOTIE — Ministry of Trade, Industry, and Energy (Korea)
• VMS — Vertical Motion Simulator
• ODB — Operations Data Base
• PFAO — Publications of the Flower Astronomical Observatory
• USAFA — United States Air Force Academy
• DSNPR — Deep Space Network Progress Report
• XUV — Extreme Ultraviolet
• EGRET — Energetic Gamma Ray Experiment Telescope
• MTSRE — Mount Stromlo Observatory Reprints
• PISCO — Parallel Imager for Southern Cosmological Observations
• ATEL — Astronomer's Telegram
• PACS — Physics and Astronomy Classification Schemex
• WMAP — Wilkinson Microwave Anisotropy Probe
• VLBI — Very Long Baseline Interferometry
• TECRV — Technology Review
• APPLE — Ariane Passenger Payload Experiment
• PAB — Pharmaceutical Affairs Bureau (Japan)
• EUV — Extreme Ultra-Violet 2
• SIRTF — Space Infrared Telescope Facility
• S&T — Sky & Telescope
• UDL — Unique Data Log
• CAROB — Carter Observatory Wellington New Zealand Astronomical Bulletins
• M&P — Moon and Planets
• TEA — Torque Equilibrium Attitude
• ROUS — Rodents Of Unusual Size
• SPIE — The Society of Photo-optical Instrumentation Engineers
• HDIF — Health Care Data Interchange Format
• LGM — Little Green Men

• IDA — International Dark-Sky Association, Inc.
• HEDIS — Healthplan Employee Data and Information
• COCIR — Coordination Committee of the Radiological and Electromedical Industries
• ANSHO — Shanghai Observatory Annals
• EBTC — Edison BioTechnology Center
• EDMA — European Diagnostics Manufacturer's Association
• WR — Wolf-Rayet Star
• CRISTA — Cryogenic Infrared Spectrometer Telescope For Atmosphere
• FQR — Flight Qualification Review
• MPO — Mercury Planetary Orbiter
• HZ — Habitable Zone
• IOA — Institute Of Astronomy (Cambridge)
• AEDRV — Astronomy Education Review
• APL&C — Astrophysical Letters Communications
• RGOB — Royal Greenwich Observatory Bulletin
• CTB — Cargo Transfer Bag
• RTK — Right-To-Know
• RVGSP — Reviews of Geophysics and Space Physics
• MEDMARC — Medical Device Material Assurance and Reinsurance Company, Ltd.
• HCPCS — Health Care Common Procedure Coding System
• QE — Quantum Efficiency
• EMDM — European Medical Device Manufacturer
• MIP — Moon Impact Probe
• PERI — Pharmaceutical Education & Research Institute
• PMA — Premarket Application
• KODOB — Kodaikanal Observatory Bulletins
• RTV — Room Temperature Vulcanizer
• AGN — Active Galaxy Nucleus
• MTI — Minnesota Technology Inc
• GRS — Gamma Ray Spectrometer
• FPA — Floating Point Accelerator
• CEO — Corporate Europe Observatory
• POL — Physician's Office Laboratory
• UADE — Unanticipated Adverse Device Effects
• NAHC — National Association of Home Care
• SVPCS — Springer Verlag Springer Series on Physics Chemistry Space
• PDAO — Publications of the Dominion Astrophysical Observatory
• OCC — Operations control center
• NACA — National Advisory Committee on Aeronautics
• MNBIO — Minnesota Biotechnology
• MMASI — Memoirs of the Astronomical Society of India
• SMDA — Safe Medical Devices Act (1990)
• IPNPR — Interplanetary Network Progress Report
• PA — Position Angle
• IMO — International Meteor Organization
• BANS — Bulletin of the Astronomical Institutes of the Netherlands, Supplement Series
• SAA — South Atlantic Anomaly
• QTG — Quantum Theory of Gravity
• MEDSUN — Medical Device Surveillance Network
• SPAN — Space Physics Analysis Network

• NMDC — National Medical Device Coalition
• SM — Standard Model
• PPMTO — Publications of the Purple Mountain Observatory
• IFCC — International Federation of Clinical Chemists
• STHCG — Studies in High Energy Physics Cosmology and Gravitation
• MDC — Major Diagnostics Category
• AP&SS — Astrophysics and Space Science
• PRAST — Practical Astronomy
• ER — Eastern Range
• VPF — Vertical Processing Facility
• AAAD — Amateur Astronomers Association Delhi
• ARBEI — Astrophysics Reports Publications of the Beijing Astronomical Observatory
• SSP — Subsolar Point
• GEO — Geosynchronous Earth Orbit
• COLON — Communications of the University of London Observatory
• LDEF — Long Duration Exposure Facility (for Spacecraft Material Testing)
• LEND — Lunar Exploration Neutron Detector
• ST-ECF — Space Telescope - European Coordinating Facility
• IRBS — Infrared Background Sensor
• SL — Comet Shoemaker-Levy
• BCS — Bragg Crystal Spectrometer
• ERF — Energy Rejection Filter
• PDO — Publications of the Dominion Observatory Ottawa
• CAPMI — Royal Observatory Cape Mimeogram
• TEI — The Education Initiative
• CORAD — Communications from the Radcliffe Observatory Pretoria South Africa
• SAS — Space Adaptation Syndrome
• MPI — Minnesota Project Innovation
• ESOB — European Southern Observatory Bulletin
• VCS — Vernier Control System
• VDC — Volts, Direct Current
• ANLL — Annals of the Observatory of Lucien Libert
• IPA — Institute for Polyacryclate Sciences
• GLOB — Globular
• LAWOB — Laws Observatory Bulletin
• PCOOO — Publications of the Cook Observatory
• PASPS — Publications of the Astronomical Society of the Pacific Supplement
• PV — photovoltaic (solar)
• NEA — Noise Equivalent Angle
• EUCOMED — European Confederation of Medical Suppliers Associations
• B/W — Black and White
• FK4 — Fundamental Katalog 4
• PBPK — Physiologically-Based Pharmacokinetic
• PVSS — Publications of Variable Star Section
• APL — Astrophysical Letters
• PAIB — Publications of the Astronomy Institute of Bonn
• TMC — Taurus Molecular Cloud
• D/A — Digital-to-Analog
• PMCCO — Publications of the Leander McCormick Observatory
• AC — Astrographic Catalogue

• USNOR — United States Naval Observatory Reports
• MV — Apparent Visual Magnitude
• SMS — Science Mission Specification
• MPC — Minor Planet Circulars
• TNO — Trans-Neptunian Object
• LRO — Large Radio Observatory
• ASTRA — Astrophysics and Space Sciences Transactions
• SIP — Sickness Index Profile
• TEC — Thermal Electric Cooler
• GHA — Greenwich Hour Angle
• MACRO — Monopole, Astrophysics and Cosmic Ray Observatory
• MVCA — Minnesota Venture Capital Association
• CIAO — Chandra Interactive Analysis of Observations
• CCLRC — Central Laboratory of the Research Councils
• PEB — Performance Evaluation Board
• MAGIC — Major Atmospheric Gamma-ray Imaging Cherenkov Telescope
• SGR — Soft Gamma Repeater
• WSMR — White Sands Missile Range (whiz-murr)
• GML — Galactic Modeling Language
• HAACP — Hazard Analysis Critical Control Points Program
• SPO — Sacramento Peak Observatory
• PAICZ — Publications of the Astronomical Institute of the Czechoslovak Academy of Sciences
• LPV — Long Period Variable
• MBBNET — Minnesota Biomedical Business Network
• PISTO — Publications of the Istanbul Observatory
• MDA — Medical Device Amendments
• OGSE — Optical Ground Support Equipment
• KODRE — Kodaikanal Observatory Reprints
• TOCC — TDRS Operations Control Center
• LDEO — Lamont-Doherty Earth Observatory
• IDT — Instrument Development Team
• SPD — Solar Physics Division
• TBBT — The Big Bang Theory
• VAP — Verification and Acceptance Program
• NEP — North Ecliptic Pole
• MDR — Medical Device Register
• EPD — Energetic Particles Detector
• NED — NASA/IPAC Extragalactic Database
• APSSS — Astrophysics and Space Science Supplement
• VTHL — Vertical Takeoff Horizontal Landing
• ALMA — Atacama Large Millimeter Array
• MO — Mars Observer
• ANBOS — Annals of the Bosscha Observatory Lembang
• DSS — Digitized Sky Survey
• STAR — Space Telescope Axial Replacement
• OMC — Orion Molecular Cloud
• DES — Deep Ecliptic Survey
• SID — Sudden Ionospheric Disturbance
• NOCC — Network Operations Control Center (GSFC)
• MMIC — Medical Manufacturers' Information Council

• MVEMJSUNP — Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto
• MEERE — Kenneth Mees Observatory Reprints
• PAN-STARRS — Panoramic Survey Telescope and Rapid Response System
• XMM — X-ray Multi Mirror
• SPWD — Space World
• TAI — International Atomic Time
• MMBAA — Memoirs of the British Astronomical Association
• STEREO — Solar Terrestrial Relations Observatory
• RTS — Relative Time Sequence
• RAPS — radiologists, anesthesiologists, and pathologists
• MODIS — Moderate Resolution Imaging Spectroradiometer
• SIMBAD — Set of Identifications, Measurements, and Bibliography for Astronomical Data
• PKIRO — Publications of the Kirkwood Observatory of Indiana University
• JHU — The Johns Hopkins University (Baltimore, MD)
• ANCGH — Annals of Royal Observatory, Cape of Good Hope
• JCMT — James Clerk Maxwell Telescope
• CSVS — Catalogue of Suspected Variable Stars
• COOXF — Communications from the University Observatory Oxford
• SMART — Small Missions for Advanced Research in Technology
• TOPS — Toward Other Planetary Systems
• TGF — Terrestrial Gamma-Ray Flash
• ZPF — Zero-Point-Fluctuation
• MACHO — Massive Astronomical Compact Halo Object
• ISTS — Institute for Space and Terrestrial Science
• RAL — Radio Astronomy Laboratory
• EU — Extended Universe
• CARRE — Carter Observatory Wellington New Zealand Reprints
• MNSSA — Monthly Notes of the Astronomical Society of South Africa
• SST — Spitzer Space Telescope
• UBM — Unpressurized Berthing Mechanism
• IPNS — Intense Pulsed Neutron Source
• LST — Large Space Telescope
• CAS — Cambridge Astrophysics Series
• ETC — Estimated Time to Completion
• BMDO — Ballistic Missile Defense Office
• VAFB — Vandenberg Air Force Base
• NEO — Near Earth Object
• KP — Kitt Peak
• APT — Automatic Photometric Telescope
• SR — Spectral Recording
• CCA — Cambridge Contemporary Astrophysics
• GAS — Getaway Special
• AMR — Antarctic Meteorite Research
• MOND — Modified Newtonian Dynamics
• CIT — Circumstellar Imaging Telescope
• PGOOO — Publications of the Goodsell Observatory
• LAMP — Lyman-Alpha Mapping Project
• 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
• HRS — High Resolution Spectrograph

• ATM — Amateur Telescope Maker
• LCG — light curve generator
• COPRI — Contributions from the Princeton University Observatory
• CM — Center of Mass
• AVSOR — American Association of Variable Stars Observers Reports
• RTC — Real-Time Command
• DOC — Data Operations Center
• BHTA — British Healthcare Trades Industry
• SSGSR — Springer Verlag Springer Series on Group Geophysics Space Research
• TMP — Technical Management Plan
• TMA — Tycho Magnetic Anomaly
• ISO — Imaging Spectrometic Observatory
• ESS — Engineering Support System
• WSO — Wilcox Solar Observatory
• CPD — Cape Photographic Durchmusterung
• MTWRE — Mount Wilson and Palomar Observatory Reprints
• MDR — Medical Device Reports
• VLT — Very Large Telescope
• NR — Non-Relativistic
• PAM-D — Payload Assist Module, Delta-class
• OOTU — Origin Of The Universe
• IRA — Infrared Astronomy
• BDB — Big Dumb Booster
• CPMF — cost plus management fee
• COAST — Communications in Asteroseismology
• ITF — Intensity Transfer Function
• CRS — Cambridge Reference Sequence
• BALTA — Baltic Astronomy
• RMS — Record Management System
• VEEGA — Venus-Earth-Earth Gravity Assist
• ODE — Office of Device Evaluation
• NM — Non-Moment
• DSO — Deep Sky Object
• CSM — Command and Service Module
• CWS — Committee on World Standards
• MA — Medical Alley
• AST — Astrometry Science Team
• AGK3 — Katalog der Astronomischen Gesellschaft 3
• MLI — Multilayer Insulation
• MDRS — Mars Desert Research Station
• SPP — Subset Preprocessor
• OAF — Optical Alignment Facility
• MOWG — Mission Operations Working Group
• KBO — Kuiper Belt Object
• SKA — Square Kilometre Array
• STARCAT — Space Telescope Archive Catalog
• OBAFGKM — Oh, Be A Fine Girl, Kiss Me
• HEO — Highly Elliptical Orbit
• OTHB — Over The Horizon Backscatter
• EAAA — Escambia Amateur Astronomers Association

• SNR — SuperNova Remnant
• MFR — Manipulator Foot Restraint
• MICRE — University of Michigan Observatory Reprints
• VAC — Volts, Alternating Current
• THAST — Theoretical Astrophysics
• B/L — Baseline
• ECA — Earth Crossing Asteroid
• JWST — James Webb Space Telescope
• POCC — Payload Operations Control Center
• RC — Relativistic Correction
• OXFOO — Oxford University Observatory Observations
• PBOSO — Publications of the Bosscha Observatory Lembang
• PCS — Physics and Chemistry in Space
• MTSOM — Mount Stromlo Observatory Mimeographs
• FIRST — Frontiers in Research: Space and Time
• MER — Mars Exploration Rover
• ISR — Instrument Science Report
• PF&CO — Publications of the Flower and Cook Astronomical Observatory
• PASK — Publications of the Academy of Science Kasakstan
• MS — Mission Schedule
• LOWOB — Lowell Observatory Bulletin
• SAT — Synthetic Aperture Telescope
• LVPS — Low Voltage Power Supply
• GIO — graphics input/output
• WAA — Westchester Amateur Astronomers
• TT — Terrestrial Time
• DLR — Deutschen Zentrum für Luft- und Raumfahrt
• AIT — Assembly, Integration, and Testing
• BRITE — Bright-Star Target Explorer
• CCDM — Catalog of Components of Double and Multiple Stars
• RM — Retrieval Mode
• ACE — Actuator Control Electronics
• NG — Newsgroup
• EU — Engineering Unit
• PDAA — Publications of the Department of Astronomy, Austin, Texas
• OPS — Operations Division
• LERC — Lewis Research Center
• ESTEC — European Space Technology Center
• CSM — Circumstellar Material
• CVZ — Continuous Viewing Zone (Hubble Space Telescope; US NASA)
• MPC — Minor Planets Circular
• MTWAR — Mount Wilson and Palomar Observatory Annual Report
• RV — Radial Velocity
• CM/QA — Configuration Management/Quality Assurance
• IRFNA — Inhibited Red Fuming Nitric Acid
• GST — Ground System Test
• FAME — Full-sky Astrometric Mapping Explorer
• WCFZ — Worst Case Fresnel Zone
• NSSCC — NORAD Space Surveillance Computation Center
• VLBA — Very Long Baseline Array

• BCG — Blue Compact Galaxy
• ASTQ — Astronomy Quarterly
• IAO — International Astronomy Olympiad
• ODC — Other Direct Cost
• DENIS — Deep Near-Infrared Survey
• PSF — Point Spread Function
• VOIR — Venus Orbiting Imaging Radar
• FACC — Ford Aerospace Communications Corporation
• SP — Solar Physics
• ZD — Zenith Distance
• AOR — Astronomical Observation Request
• TAG — Two-Axis Gimbal
• HRA — High Resolution Apodizer
• SMM — Solar Maximum Mission
• UIT — Ultraviolet Imaging Telescope
• IWG — Interface Working Group
• RICAP — Roma International Conference on Astroparticle Physics
• NSC — Navigational Star Catalog
• DDTE — Design, Development, Test, and Evaluation
• FAST — Fast Auroral Snapshot Explorer
• RLQ — Radio Loud Quasar
• CSO — Caltech Submillimeter Observatory
• SIC — Spacecraft Identification Code
• SARA — Satellite pour Astronomie Radio Amateur
• GDS — Great Dark Spot
• DQE — Detector Quantum Efficiency
• PDA — Photon Detector Assembly
• FSM — First Servicing Mission
• FDI — failure detection and isolation
• BWI — Baltimore-Washington International Airport, between Baltimore, Maryland and Washington, DC, United States
• DN — Digital Number
• SB — Spectroscopic Binary
• NSL — Northrop Space Laboratory
• GVI — Global Village Idiot
• DISR — Descent Imager/Spectral Radiometer
• TAR — Test Authorization Request
• SLAP — Space Link Access Protocol
• SQPK — staggered quadrature phase shift keying
• FES — Fine Error Signal
• ABBA — ADC Backend For Bolometer Array
• CTO — Color Temperature Orange
• SMA — Secondary Mirror Assembly
• ODAS — OCA (Observatoire de la Côte d'Azur) - DLR (Deutschen Zentrum für Luft- und Raumfahrt) Asteroid Survey
• MINISAT — Miniature Satellite
• FRAS — fellow of the Royal Astronomical Society
• CCD — Color-Color Diagram
• ACV — Alpha Canes Venatici
• MOLA — Mars Observer Laser Altimeter
• MPF — Mars PathFinder
• HB — Hot Bands

• AEA — Atomic Energy Agency
• FGE — Fine Guidance Electronics
• VHE — Very High Energy
• GSPC — Guide Star Photometry Catalog
• T&E — Test and Evaluation
• A/D — Analog to Digital (conversion)
• JVO — Japanese Virtual Observatory
• HLV — Heavy Lift Vehicle
• TMTE — Telemetry Test Equipment
• LBVS — Luminous blue variable
• NEAF — North East Astronomy Forum
• IDT — Image Dissector Tube
• UIC — User Identification Code
• PNLF — Planetary Nebula Luminosity Function (astronomy)
• LITVC — Liquid Injection Thrust Vector Control
• DQF — Data Quality File
• CDMH — Cold Dark Matter Haloes
• CAI — Calcium Aluminum-rich Inclusion
• SNAP — Structural Network Analysis Program
• SETI — Search for Extra Terrestial Intelligence
• IPS — Inches Per Second
• BAC — Bordeaux Astrographic Catalog
• SV — Science Verification
• AGN — Active Galactic Nucleus
• SPRL — Space Physics Research Laboratory
• KTB — Cretaceous-Tertiary Boundary
• OCB — Operational Configuration Baseline
• ETOL — ESA Test and Operations Language
• AST — Apparent Solar Time
• SAL — Space Astronomy Laboratory (Univ. Wisconsin, Madison WI)
• SPDM — Special Purpose Dextrous Manipulator
• MTR — Mean Time to Restore
• RASS — ROSAT All-Sky Survey
• VRCS — Vernier Reaction Control System
• WAA — Western Amateur Astronomers
• EROS — Earth Resources Observation Satellite
• HVR — Hyper-Variable Region
• PAD — Pulse Amplitude Discriminator
• LGRB(S) — long gamma ray burst(s)
• IPPPSSOOT — file naming convention for HST data sets
• AXP — Anomalous X-Ray Pulsar
• PEP — Proposal Entry Processor
• COTS — Cheap Off the Shelf
• ATR — Absolute Time Reference
• CSPN — Central Star of Planetary Nebula
• SWEEPS — Sagittarius Window Eclipsing Extrasolar Planet Search
• HAO — High Altitude Observatory (NCAR)
• HFQPO(S) — high-frequency quasi-periodic oscillation(s)
• SP — sun point
• AAA — Amateur Astronomers Association

• ABB — After the Big Bang
• EA — Eclipsing Algol
• SLOI — Satellite Lake Observatory Initiative
• LCRS — Las Campanas Redshift Survey
• SOHO — Solar Heliospheric Observatory
• NGS — National Geographic Society
• Z — Redshift Factor
• ARGOS — Advanced Research Global Observation Satellite
• MSOCC — Multisatellite Operations Control Center
• SWAT — Swift Action Team
• CCAR — Colorado Center for Astrodynamics Research
• BDF — Block Data Format
• SST — Software Support Team
• STERJ — Solar, Terrestrial and Environmental Research Japan
• CPMM — characters per millimeter
• WTR — Western Test Range
• IRDC — Infrared Dark Cloud
• CCL — Closed Conference Loop
• LBN — Lynds Bright Nebula
• PK — Perek-Kohoutek
• MCSA — Mir Cooperative Solar Array
• NICMOS — Near-Infrared Camera and Multi-Object Spectrometer
• GTO — Guaranteed Time Observer
• SOUST — Southern Skies
• SXR — Soft X-Ray
• RC — Reference Catalogue
• SN — SuperNova
• SWAS — Submillimeter Wave Astronomy Satellite
• SIA — Solar Inertial Attitude
• ADIL — Astronomy Digital Image Library
• SERF — Space Environment Research Facility
• DCF — Data Capture Facility
• BOOK — Bio Optical Organized Knowledge
• ACRV — Astronaut Crew Rescue Vehicle
• PLSS — Portable Life Support System
• ZHR — Zenith Hourly Rate
• CIP — Celestial Intermediate Pole
• SED — Spectral Energy Distribution
• PMIRR — Pressure Modulated InfraRed Radiometer
• NEA — Near-Earth Asteroid
• SUMER — Solar Ultraviolet Measurements of Emitted Radiation
• GSOWG — Ground Systems Operations Working Group
• SCAS — Southern Cross Astronomical Society, Inc.
• ORB — Observatoire Royal de Belgique (Royal Observatory of Belgium)
• VSSCI — Variable Star Section Circulars
• PWM — pulse width modulated
• OLT — Observatory Level Test
• DMS — Data Management Subsystem
• AVWG — Assembly and Verification Working Group
• CAAS — Central Arkansas Astronomical Society

• VFN — virtual file name
• ZAP — Z Axis Precession
• MSP — Millisecond Pulsar
• LBV — Luminous Blue Variable
• VZA — Viewing Zenith Angle
• TOYAL — Transactions of the Astronomical Observatory of Yale University
• LUT — Lookup Table
• RPI — Rensselaer Polytechnic Institute (Rensselaer, NY)
• SUVSR — Scandinavian Union of Amateur Astronomers Variable Star Section
• LIRG — Luminous Infrared Galaxy
• CELT — California Extremely Large Telescope
• EAPU — External Auxiliary Power Unit
• BMO — Black Moving Object
• MSTO — Main Sequence Turn-Off
• VSSRE — Variable Star Section Reprints
• MONGO — Interactive graphics software package
• TIUCS — Transactions of the International Union for Cooperation in Solar Research
• A — Angstrom unit
• PODPS — Post Observation Data Processing System
• SPIF — Shuttle/POCC Interface Facility
• COMPTEL — Compton Telescope
• SFS — Smallest Feature Size
• EJASA — Electronic Journal of the Astronomical Society of the Atlantic
• CFCO — Committee for Crescent Observation
• IDMP — International Daylight Measurement Program
• AGK — Astronomische Gesellschaft Katalog
• OMS — Observatory Monitoring System
• WIYN — Wisconsin Indiana Yale NOAO Telescope Consortium
• ACS — Advanced Camera for Surveys
• IAAC — Internet Amateur Astronomers Catalog
• TKSC — Tsukuba Space Center
• GCVS — General Catalog of Variable Stars
• SCSP — Science and Culture Series Physics
• ZOF — zone of exclusion
• GMC — Giant Molecular Cloud
• QV — quick visual
• RGA — Rate Gyro Assembly
• OPB — Observation Planning Branch
• P&A — Physics and Astronomy
• WKO — Well-Known Object
• PASP — Publications of the Astronomical Society of Pacific
• AWG — Astronomy Working Group
• FIRST — Far InfraRed and Submillimeter Space Telescope
• WAA — Wiener Arbeitsgemeinschaft für Astronomie
• UKIRT — United Kingdom Infrared Telescope
• STOL — Systems Test and Operations Language
• SJC — slit jaw camera
• SPIEL — Signal Processing Interactive Extensible Language
• SXT — Soft X-Ray Telescope
• YSO — Young Stellar Object

• QZ — Quasi Zenith
• CEMP — Carbon-Enhanced Metal-Poor
• STIF — Software Test and Integration Facility
• SAOCO — Smithsonian Astrophysical Observatory - Contributions to Astrophysics
• DN — Dwarf Nova
• MIDAS — Munich Image Data Analysis System
• EHB — Extreme Horizontal Branch
• HIPO — Hierarchic Input-Process-Output
• C/C — configuration control
• IRAC — International Radio Advisory Committee
• OCO — Oort Cloud Object
• GEIS — Generic Edited Information Set
• PSL — Program Support Library
• TSTO — Two-Stage-To-Orbit
• UDMH — Unsymmetrical Dimethyl Hydrazine (Alar Metabolite)
• IDM — Intelligent Database Machine
• NEMP — Nitrogen-Enhanced Metal-Poor
• APT — Automated Patrol Telescope
• PMDB — Project Management Data Base
• STAVF — Space Telescope Assembly and Verification Facility
• SDP — science data packet
• VGRF — Variable-Gravity Research Facility
• RRAT — Rotating RAdio Transient
• SDMS — Spatial Data Management System
• SQM — Strange Quark Matter
• PRESTO — Project to Re-Engineer Space Telescope Observing
• IRAIT — International Robotic Antarctic Infrared Telescope
• CVAS — Chippewa Valley Astronomical Society
• XN — X-ray Nova
• AOA — ASCA Online Arxiv
• DSOB — Data Systems Operations Branch
• E/A — Ephemeris/Attitude
• SRS — Stellar Radiation Sensor
• RXTE — Rossi X-Ray Timing Explorer
• SQPN — staggered quadriphase pseudo-random noise
• ORR — Orbit Readiness Review
• LENA — Low Energy Neutrino Astronomy
• ICSO — International Conference on Space Optics
• TAUVEX — Tel Aviv University Ultraviolet Explorer
• RNP — Rotation, Nutation and Precession
• CSS — Catalina Sky Survey
• C&DH — Control and Data Handling
• BSG — Blue SuperGiant
• AESS — Institute of Electrical and Electronic Engineers - Aerospace and Electronics Systems Society
• OCS — Optical Control System
• FEM — Finite Element Model
• NOT — NOrdic Telescope
• LSO — Large Solar Observatory
• VELLO — Very Low Luminosity Object
• FGS — Fine Guidance Sensors

• WBHF — WideBand High Frequency
• UGSU — UG SU Ursae Majoris
• XCS — XMM Cluster Survey
• ALAT — Airborne Large Aperture Telescope
• CISCO — Cooled Infrared Spectrograph and Camera for OHS
• SAGA — Solar Array Gain Augmentation
• ACS — Actuator Control System
• CBS — Contract and Business Services
• OSB — Operations Software Branch
• CNSR — Comet Nucleus Sample Return
• RIACS — Research Institute for Advanced Computer Science
• BCCP — Berkeley Center for Cosmological Physics
• RQZ — Radio Quiet Zone
• SLTV — System Level Thermal Vacuum
• AXAF — Assembly and Verification Working Group
• ENE — East North East
• XIS — X-ray Imaging Spectrometer
• ESTR — Engineering and Science Tape Recorder
• LAMO — low altitude mapping orbit
• TWA — TW Hydrae Association
• OVIWG — Orbital Verification Implementation Working Group
• ARAA — Annual Review of Astronomy and Astrophysics
• THEMIS — Thermal Emission Imaging System
• AEDP — Astrometry and Engineering Data Processing
• NIMS — Near-Infrared Mapping Spectrometer
• HERA — Hermes Robotic Arm
• AQR — Aquarius
• ETR — Engineering Tape Recorder
• SQIID — Simultaneous Quad Infrared Imaging Device
• SAM — Small Angle Maneuver
• FPA — Focal Plane Assembly
• NPS — North Polar Sequence
• FGSAA — FGS Access Area
• SHAD — Stellar Horizon Atmospheric Dispersion
• IQL — Interactive Query Language
• SIPS — Southern Infrared Proper Motion Survey
• UCSD — University of California San Diego
• C&A — calibration and analysis
• DSD — Data Systems Division
• QPO — Quasi-periodic Oscillation
• ULAS — Union List of Astronomy Serials
• SCSA — Science and Culture Series Astrophysics
• SSC — Science Support Center
• EAAS — East Antrim Astronomical Society
• CG — Compact Galaxy
• CAAA — Capital Area Astronomy Association
• VILCO — Villanova University Observatory Contributions
• MCG — Morphological Catalog of Galaxies
• SPT — South Pole Telescope
• VERITAS — Very Energetic Radiation Imaging Telescope Array System

• OSS — Observation Support System
• EKBO — Edgeworth-Kuiper Belt Object
• STR — Science Tape Recorder
• LINER — Low Ionization Nuclear Emission Region
• GOX — Gaseous Oxygen
• AAAM — Active Amateur Astronomers of Maryland
• CDCA — Centre de Depoiullement des Cliches Astronimiques
• OC — Open Cluster
• CCIR — Comit? Consultatif International Pour La Radio (French For Consultative Committee On International Radio
• UST — Universal Standard Time
• CVC — Current-to-Voltage Converter
• PORTS — Preliminary Operations Requirements and Test Support
• DDCU — DC-to-DC Converter Unit
• GMRT — Giant Meter-wave Radio Telescope
• EAAE — European Association for Astronomy Education
• PTF — Payload Test Facility
• DOV — Director of Orbital Verification
• SMOV — Servicing Mission Observatory Verification
• LC — Las Campanas observatory
• SS — System Simulator
• AJD — Astronomical Julian Day
• NAO — National Astronomy Olympiad
• IMSL — International Mathematical and Statistical Library
• SANSA — South African National Space Agency
• PFS — Percent Full Scale
• SFC — Space Forecast Center
• EMP — Extremely Metal-Poor
• CREAM — Cosmic Ray Energetics and Mass
• BITP — Bogolyubov Institute for Theoretical Physics
• WISARD — Web Interface for Searching Archival Research Data
• RPO — Research Programs Office
• LPICO — Lunar and Planetary Institute Contributions
• PPF — Payload Processing Facility (USAF)
• CMC — Carlsberg Meridian Catalogue
• ATCA — Australia Telescope Compact Array
• TECU — Technology and Culture
• LOTOSS — Lick Observatory and Tenagra Observatory Supernova Searches
• BOAO — Bohyunsan Optical Astronomy Observatory
• MAST — Multimission Archive at Space Telescope
• BST — British Summer Time [GMT 0100]
• TFMRP — Transfer Function Mode Reduction Package
• PWD — Pre-White Dwarf
• GLOW — Gross Lift-Off Weight
• VRM — Venus Radar Mapper
• STSDAS — Space Telescope Science Data Analysis System
• SEB — Source Evaluation Board
• CMT — Carlsberg Meridian Telescope
• STL — science trailer line
• ADAF — Advection-dominated Accretion Flow
• ROLUN — Reports of the Lund Observatory

• AET — Accuracy Enhancing Technology
• PFI — Partial Frame Image
• PASP — Proceedings of the Astronomical Society of the Pacific
• ASP — Analog Signal Processor
• ITA — Institute of Theoretical Astronomy
• 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)
• REPT — Relativistic Electron-Proton Telescope
• CINEOS — Campo Imperatore Near-Earth Object Survey
• RAG — Radio Astronomy Group
• SEP — System Enhancement Plan
• SPWEA — Space Weather
• MS — Meteor Scattering
• CC — Candidate Companion
• RC — Ritchey-Chretien
• HTHL — Horizontal Takeoff Horizontal Landing
• SETA — Search for Extra Terrestrial Artifacts
• SPA — Solar Panel Assembly
• MPCS — Minor Planet circulars Supplement
• PUSNO — Publications of the US Naval Observatory
• CFCP — Center for Cosmological Physics
• COMICS — Cooled Mid-Infrared Camera and Spectrometer
• SJR — Software Justification Report
• ASKAP — Australian Square Kilometre Array Pathfinder
• PSR — Project Status Review
• ACM — Asteroids Comets Meteors
• NLTE — Non-local Thermodynamic Equilibrium
• VRSD — Verification Requirements and Specifications Document
• CIBR — Cosmic Infrared Background Radiation
• CSAA — Committee on Space Astronomy and Astrophysics
• LCDM — Lambda Cold Dark Matter
• CXO — Chandra X-ray Observatory
• SOFA — Standards of Fundamental Astronomy
• MWO — Mount Wilson Observatory
• UMCP — University of Maryland College Park
• DVA — Detector Vacuum Assembly
• IRAC — Infrared Array Camera
• DCEP — Delta Cepheid
• XSC — Extended Source Catalog
• HDOS — Hughes Danbury Optical Systems (Danbury CT)
• VSOLB — Variable Star Observers League in Japan - Bulletin
• DPOSS — Digitized Palomar Observatory Sky Survey
• MU — Memory Unit
• PDBI — Plateau de Bure Interferometer
• SAREX — Space Amateur Radio Experiment
• CADC — Canadian Astronomical Data Center
• QPSK — quadriture phase shift keying
• ODL — Observation Data Log
• SIF — Science Instrument Formatter

• RVMA — Reviews in Modern Astronomy
• EVAC — East Valley Astronomy Club
• CAMAC — Computer-Aided Measurement and Control
• RFT — Rich Field Telescope
• IRCS — Infrared Camera and Spectrograph
• ETRD — Engineering Tape Recorded Data
• TZO — Thorne-Å»ytkow Object
• ACP — Aerosol Collector and Pyrolyser
• OSCAR — Orbital Satellite Carrying Amateur Radio
• KAIT — Katzman Automatic Imaging Telescope
• GSSS — Guide Star Selection System
• VPC — viewport coordinates
• ECT — Equator Crossing Time
• OAO — Orbiting Astronomical Observatory
• IFT — Inverse Fourier Transform
• AVO — Astrophysical Virtual Observatory
• AAT — Anglo-Australian Telescope
• VSSSC — Variable Star Section Special Circulars
• ADS — Aitken Double Stars
• PROS — Post Reduction Offline Software
• CASB — Catalogs and Survey Branch
• WIRE — Wide-Field Infrared Explorer
• QPOE — Quick Position Oriented Event
• OCX — observation comments file
• R&I — Receiving and Inspection
• ASCA — Advanced Satellite for Cosmology and Astronomy
• CG — Cometary Globule
• IPPW — International Planetary Probe Workshop
• CRAP — Completely Radical Anthropic Principle
• CM — Critical mass
• TAROT — Télescope à Action Rapide pour les Objets Transitoires
• WOMBAT — Wavelength-Oriented Microwave Background Analysis Team
• WKAA — West Kentucky Amateur Astronomers
• MMR — Mean-Motion Resonance
• RNGC — Revised New General Catalog
• CMBR — Cosmic Microwave Background Radiation
• SGEMP — Space-Generated Electromagnetic Pulse
• BATC — Beijing-Arizona-Taiwan-Connecticut
• RPSS — Remote Proposal Submission System
• CSLG — Campus-wide Software License Grants Program
• ACURA — Association of Canadian Universities for Research in Astronomy
• CMCC — Central Mission Control Centre
• STIF — Science and Technology Information Facility
• PUAMS — Publications of the Astronomical Institute of the University of Amsterdam
• LRG — Luminous Red Galaxy
• STEIS — Space Telescope Electronic Information System
• EBE — Extraterrestrial Biological Entity
• ISPM — International Solar Polar Mission
• PNG — Planetary Nebulae, Galactic
• CCO — Catalogue of Cometary Orbits

• SPE — Static Phase Error
• SSRV — Space Science Reviews
• ICF — Intrinsic Correlation Function
• ETI — Extraterrestrial Intelligence
• PNNV — Planetary Nebula Nucleus Variable
• BLO — Bl Lac Object
• VVDS — VIMOS-VLT Deep Survey
• ELIAS — European Large Area ISO Survey
• NAIF — Navigation Ancillary Information Facility
• OPD — Operations and Data Processing Division
• TUASB — Tokyo University Institute of Space and Aeronautical Science Bulletin
• PSI — Planetary Science Institute
• SAS — Science Analysis Software
• SEI — Space Exploration Initiative
• RABF — Radio Astronomy Bandstop Filter
• GEM — Galileo Europa Mission
• DIG — Dwarf Irregular Galaxy
• OCST — Office of Commercial Space Transportation
• HESI — High Energy Solar Imager
• LWR — Long Wavelength Redundant
• CSPAR — Center for Space Plasma and Aeronomic Research
• LFAE — Light Field Attribute Explorer
• APSB — Advance Planning Systems Branch
• SMM — science mission management
• RDI — Radiation Driven Implosion
• GCC — Globular Cluster Candidate
• LST — Local Sidereal Time
• OPUS — OSS and PODPS Unified Systems
• FFD — First Fixation Duration
• ASAS — All Sky Automated Survey
• EAFB — Edwards Air Force Base
• LP — Luyten Palomar
• IIPS — Interactive Image Processing System
• TASS — The Amateur Sky Survey
• BEM — Bug-Eyed Monster (Late 40's-early 50'soft-used, and still in use, Sci-Fi term)
• SEA — Sensor Electronics Assembly
• NRF — National Research Foundation
• GXY — Galaxy
• IRTF — Infrared Telescope Facility
• IARA — Italian Amateur Radio Astronomy
• SSU — Steady State Universe
• MOID — Minimum Orbit Intersection Distance
• SINGS — Spitzer Infrared Nearby Galaxies Survey
• OV — Orbital Verification
• MOXE — MOnitoring X-Ray Experiment
• SAREX — Search and Rescue Exercise
• OFAD — Optical Field Angle Distortion
• O — Oblivion
• SIMA — Secondary Mirror Incremental Motor Actuator
• CTIO — Cerro Tololo Inter-American Observatory

• SMBH — Super Massive Black Hole
• MOSES — Mission Operations and Systems Engineering Support
• FOCAS — Faint Object Classification and Analysis System
• DAV — Deerlick Astronomy Village
• AAS — Archaeology Astronautics and Seti
• TO — target of opportunity
• WFS — Wave Front Sensor
• CRRES — Combined Release Radiation Effects Satellite
• TCB — Barycentric Coordinate Time
• MAG — Magnitude
• DN — Dwarf Novae
• SOSYR — Solar System Research
• STVSW — Space Telescope Verification Software
• TTC — telemetry, tracking, and command
• OPO — Operations Project Office
• PCT — Program Coordinator Team
• SUPRIME — SUbaru PRIME focus CAMera
• EUSO — Extreme Universe Space Observatory
• TML — Total Mass Loss
• ASWG — Astronomical Science Working Group
• TCG — Geocentric Coordinate Time
• FASTT — Flagstaff Astrometric Scanning Transit Telescope
• OW — Outer Wall
• BPM — Bruce Proper Motion
• MV — absolute visual magnitude
• FSS — Flight Servicing System
• SVWG — Science Verification Working Group
• RSG — Red Super Giant
• SIB — Science Instrument Branch
• EARS — Electrostatic Atmospherics Radio Sensor
• SSPRV — Space and Solar Power Review
• SID — Software Implementation Directive
• APASS — AAVSO Photometric All-Sky Survey
• ECA — Electronics Control Assembly
• LEST — Large Earth-based Solar Telescope
• NLST — National Large Solar Telescope
• MOTV — Manned Orbital Transfer Vehicle
• BBH — Big Black Hole
• ADAS — Asiago DLR Asteroid Survey
• PRE — Photospheric Radius Expansion
• STDN — Satellite Tracking and Data Network
• SF — Star Field
• SPSS — Science Planning and Scheduling System
• GAF — Geographic Adjustment Factor
• HTVL — Horizontal Takeoff Vertical Landing
• BAV — Bundesdeutsche Arbeitsgemeinschaft fur Veraenderliche Sterne
• LMSC — Lockheed Missile and Space Corporation
• SHAD — Stellar Horizon Attitude Determination
• TAU — Thousand Astronomical Unit
• DS — Dwarf Star

• MLRS — McDonald Laser Ranging Station
• CDIMP — Catalogue of Discoveries and Identifications of Minor Planets
• ESB — Engineering Support Branch
• AD — Analog to Digital
• BDEC — Bendix Field Engineering Corporation
• ♅ — Uranus
• PSR — Pulsar Supernova Remnant
• JOP — Joint Observing Program
• GPB — Group Parameter Block
• TYC — Tycho
• TIB — Telescope Instrument Branch
• SGRB(S) — short gamma ray burst(s)
• TUASR — Tokyo University Institute of Space and Aeronautical Science Report
• SSO — Special Studies Office
• LMST — Local Mean Sidereal Time
• RMS — Remote Manipulator System
• PNN — Planetary Nebula Nucleus
• RSB — Research Support Branch
• CTRF — Celestial and Terrestrial Reference Frames
• IV — intra vehicular
• SCARS — Science Computing & Research Support Division
• BRAVO — Back-End Redesign for Added Value for Observers
• VISTAR — visible space tracking and reconnaissance
• DCA — Detector Control Assembly
• SSP — Surface Science Packages
• SER — Systems Engineering Report
• VPU — video processing unit
• CIB — Cosmic Infrared Background
• RC — Red Clump
• PNS — Pulsed Neutron Source
• CNES — Centre National d'Etude Spatiales
• UGSS — UG SS Cygni
• AGAPE — Andromeda Galaxy and Amplified Pixels Experiment
• L — Lagrange
• MT — Moving Target
• ILOC — International Lunar Occultation Center
• LONEOS — Lowell Observatory Near-Earth-Object Search
• XBP — X-Ray Bright Point
• IVC — Institute Visiting Committee
• TAC — telemetry and command processor
• USMP — United States Microgravity Payload
• CCO — Central Compact Object
• GBT — Green Bank Telescope
• CXBR — Cosmic X-ray Background Radiation
• LOTIS — Livermore Optical Transient Imaging System
• LINEAR — Lincoln Near Earth Asteroid Research
• PEP — PhotoElectric Photometry
• MUSTANG — Multiplexed SQUID TES Array at Ninety GHz
• MGS — Mars Global Surveyor
• CST — Constant Strain Triangle

• IBBTF — Imagination Baffled By The Facts
• WGAS — Working Group on Astronomical Software
• CGRO — Compton Telescope
• ERRSAC — Eastern Regional Remote Sensing Applications Center
• GC — Galactic Center
• KIC — Kepler Input Catalog
• LV — Lunette Verte
• FGC — Flat Galaxy Catalogue
• PMPS — Parkes Multibeam Pulsar Survey
• CRTS — Centre Royal de Teledetection Spatiale
• SS — Safing System
• NCSA — National Center for Supercomputer Applications (Urbana IL)
• SDAS — Scientific Data Analysis System
• DAG — Doğu Anadolu Gozlemevi
• AEG — Astro Event Group
• NEAP — Near Earth Asteroid Prospector
• NEO — Near-Earth Object - Non-combatant Evacuation Operations
• ISEE — International Sun Earth Explorer
• FPAS — FPA Shroud
• PGPLOT — FORTRAN subroutine library for plotting graphics
• ULE — Ultralow Expansion
• WFCAM — Wide Field Camera
• MEM — Maximum Entropy Method
• STIC — Space Telescope Institute Council
• AUDS — ALFA Ultra Deep Survey
• COL — Collinder catalog
• LTM — Like The Moon
• CSV — Catalog of Suspected Variables
• FEB — Falling-Evaporating Body
• DBW — decibel reference to 1 watt
• EMP — Ephemerides of Minor Planets
• MMF — Moving Magnetic Feature
• RWA — Reaction Wheel Assembly
• ICRC — International Cosmic Ray Conference
• PWN — Pulsar Wind Nebula
• DES — Dark Energy Survey
• SVPHA — Soviet Physics Astronomy
• UKST — United Kingdom Schmidt Telescope
• SMA — Submillimeter Array
• CNS — Computing and Network Services
• LOSS — Lick Observatory Supernova Search
• EAC — European Astronaut Centre
• IWCA — International Workshop on Cometary Astronomy
• NIU — NASCOM Interface Unit
• UGWZ — UG WZ Sagittae
• EAPJ — Electronic AstroPhysical Journal Letters
• DEFCAL — deflection calibration
• SPG — Special Projects Group
• AOC — Award Of Contract
• DM — Dark Matter

• FIRST — Faint Images of the Radio Sky at Twenty-centimeters
• LETGS — Low Energy Transmission Gratings Spectrometer
• UGZ — UG Z Camelopardalis
• UNPSA — United Nations Programme on Space Applications
• ALTS — Astronomy Lunch Time Seminar
• SEST — Swedish-ESO Submillimetre Telescope
• UKIDSS UKIRT — Infrared Deep Sky Survey
• SMM — Spectro-Mirror Mechanism
• MYSO — Massive Young Stellar Object
• ODS — Our Dark Skies
• SPS — Solar Power Satellite
• SESD — Science and Engineering Systems Division
• ROTSE — Robotic Optical Transient Search Experiment
• Q&A — qualification and acceptance
• SMO — Servicing Mission Office
• WSAL — Winston-Salem Astronomical League
• SWAN — Solar Wind ANisotropy
• SDM — Secondary Deployment Mechanism
• SIAF — Science Instrument Aperture File
• MONS — Measuring Oscillations in Nearby Stars
• BZ — Brillouin zone - a uniquely defined primitive cell in reciprocal space
• CCITT — Consultative Committee on International Telegraph & Telephone
• PEPE — Plasma Experiment for Planetary Exploration
• CHIP — Cosmic Hot Interstellar Plasma
• RLOF — Roche Lobe Overflow
• FEAT — Fine Error Averaging Test
• MW — Milky Way
• NDC — Network Data Center
• RORF — Radio/Optical Reference Frame
• WXQ — Waxing Quarter
• KAO — Kuiper Airborne Observatory
• TIC — Tycho Input Catalog
• TSI — Total Solar Irradiance
• CHZ — Circumstellar Habitable Zone
• MRSRM — Mars Rover and Sample Return Mission
• NOMAD — Naval Observatory Merged Astrometric Dataset
• IPMO — Isolated Planetary-Mass Objects
• IOTA — Infrared-Optical Telescope Array
• GRAND — Gamma Ray and Neutron Detector (NASA)
• E — Eclipsing
• START — Solar Thermal Analysis Review and Training
• SMC — Small Magellanic Cloud
• SIPE — Science Instrument Protective Enclosure
• ULX — Ultra-Luminous X-ray source
• SSD — Science Support Division
• GHZ — Galactic Habitable Zone
• ACIS — Advanced CCD Imaging Spectrometer
• ACT — Astrographic Catalog Tycho
• SCUBA-2 — Submillimetre Common User Bolometer Array 2
• SAOC — SAO Catalog

• MPP — multi-pinned phase
• QEH — Quantum Efficiency Hysteresis
• JFC — Jupiter Family Comets
• CIAO — Coronagraphic Imager with Adaptive Optics
• WDS — Washington Double Star
• GRB — Gamma Ray Bursters
• VISTA — Visible and Infrared Survey Telescope for Astronomy
• STAC — Space Telescope Advisory Council
• GSP — General Support Pool
• DSN — deep-space network
• SPYBAL — spectrum Y balance
• IB — Interstellar Band
• WRO — Warren Rupp Observatory
• ATPI — Astronomy Through Practical Investigations
• LWS — Long Wavelength Spectrometer
• GRS — Great Red Spot
• CST — Constant
• CNO — Carbon-Nitrogen-Oxygen
• PAR — Photon Activity Rate
• SCP — Small Computer Systems Interface
• CSWA — Committee on the Status of Women in Astronomy
• IAU — International Astrophysical Union
• SIS — SETI (Search for Extra-Terrestial Intelligence) Intercept System
• DRS — Direct Receiving Station
• EIT — Extreme Ultraviolet Imaging Telescope
• TRACE — Transition Regional and Coronal Explorer
• TAAA — Tucson Amateur Astronomy Association
• SUGRA — Supergravity
• GDSO — Georgi Dobrovolski Solar Observatory
• DE — Dwarf elliptical
• PASA — Pan-Arab Space Agency
• SDA — Science Data Analyst Small Computer Systems Interface
• SSSPM — SuperCOSMOS Sky Survey Proper Motion
• US/PS — see PRESTO
• DRD — Data Requirements Document
• ECF — European Coordinating Facility
• MKO — MAUNA KEA OBSERVATORY
• BCVS — Bibliographic Catalogue of Variable Stars
• ASTRO — Autonomous Space Transport Robotic Operations
• PRB — Preliminary Review Board
• SOARD — Steward Observatory Asteroid Relational Database
• GRAB — Galactic Radiation and Background
• LSST — Large Synoptic Survey Telescope
• DDA — Division on Dynamical Astronomy
• LHS — Luyten Half-Second
• OST — Observation Sequence Table
• PFM — Pre-Flight Module
• SDF — Science Data Formatter
• SSRT — Single Stage Rocket Technology
• EOSL — Earth Observation Systems Laboratory

• WCS — World Coordinate System
• ACA — Atacama Compact Array
• ABRIXAS — A BRoadband Imaging X-ray All-sky Survey
• PW&SO — Publications of the Warner Swasey Observatory
• SHAR — Stellar Horizon Atmospheric Refraction
• OGLE — Optical Gravitational Lensing Experiment
• MLY — Mega Light Year
• SHP — Standard Header Packet
• IRS — International Reference Star
• DDF — Directors Discretionary Funds
• XANES — X-Ray Near Edge Spectroscopy
• LSG — Liaison Scientists Group
• SPB — Science Planning Branch
• CRL — Compound Refractive Lens
• HSI — Host System Interface
• NS — Neutron Star
• SAO — Swinburne Astronomy Online
• CCMS — Command Control and Monitor System
• SXG — Spectrum-X-Gamma
• BSS — Blue Straggler Star
• R-L — Richardson-Lucy
• CANX — Canadian Advanced Nanospace Experiments
• PASS — POCC Application Software Support
• PFR — Portable Foot Restraint
• TRB — Test Review Board
• STFS — Space Telescope Flight Software
• ASIAA — Academia Sinica Institute of Astronomy and Astrophysics
• AH — ampere hours
• LWS — Long-Wave Spectrograph
• CFS — Chandrasekhar - Friedmann - Schutz instability
• SEST — Swedish ESO Submillimeter Telescope
• MLSO — Mauna Loa Solar Observatory
• SFN — Star Formation Newsletter
• EDB — Engineering Data Base
• WSGS — White Sands Ground Station
• SMC — Standard Model of Cosmology
• SCOA — Smithsonian Contributions to Astrophysics
• FRB(S) — gamma ray burst(s)
• N — Nova
• SCP — Science Data Analyst
• CGRO — Compton Gamma Ray Obsrvatory
• SCAC — Science Computing Advisory Commitee
• SXARI — SX ARIetis
• IMIO — Image Input/Output
• LP — Lonely Planet
• BCD — Basic Calibrated Data
• NGS — New Generation STAR
• LDS — Luyten Double Star
• HVPS — High Voltage Power Supply
• WF/PC — Wide Field/Planetary Camera

• RSFC — Radially Stratified Flame Core
• WFPC2 — Wide Field Planetary Camera-2
• DSOS — Dish Surface Optimization System
• CCAS — Cape Cod Astronomical Society
• PACS — Photoconductor Array Camera and Spectrometer
• LMXB — Low-Mass X-Ray Binary
• SFU — Space Flier Unit
• CODMAC — Committee on Data Management and Computing
• TLP — Transient Lunar Phenomenon
• NODO — NASA Orbital Debris Observatory
• EF — Event Foreground
• SOB — Science Observatory Branch
• SLSN-I — hydrogen-poor SLSNe
• CDBS — Calibration Data Base System
• PWHHO — Publications of West Hendon House Observatory, Sunderland
• OBP — Onboard Processor
• CRAQ — Centre for Research in Astrophysics of Québec
• ISSA — Infrared Sky Survey Atlas
• TB — Thermal Balance
• SOGS — Science Operations Ground System
• MXRB — Massive X-Ray Binary
• TAAS — The Albuquerque Astronomical Society
• MSO — Mount Stromlo Observatory
• SWRI — Southwest Research Institute
• ACK — acknowldgement message
• SFD — SXT Full Disk
• UVCS — Ultraviolet Coronal Spectrometer
• HLO — High Light Output
• AMASE — Astrophysics Multi-Spectral Archive Search Engine
• RTLT — Round Trip Light Time
• ESIS — European Space Information System
• PTF — Palomar Transient Factory
• BRAS — Baton Rouge Astronomical Society
• NLTT — New Luyten Two-Tenths
• LDE — Long Duration Event
• RCS — Readiness Control System
• MPP — Multi-Pinned-Phase
• MEV — million electron volts
• MOMV — Manned Orbital Maneuvering Vehicle
• TPI — Technical Proposal Instructions
• MOSS — Moving Object Support System
• WYBT — Whole Year Blazar Telescope
• PSS — Palomar Sky Survey
• XMM — X-ray Multi- Mirror satellite
• GRB(S) — gamma ray burst(s)
• CMD — Color-Magnitude Diagram
• UGWZ — U Gem variable type star (WZ Sagittae sub-type)
• HSC — Hierachical Storage Controller
• ACYG — Alpha CYGni
• BHXRT — Black Hole X-Ray Transient

• PPM — Positions And Proper Motions (catalog)
• NTR — Nuclear Thermal Rocket
• CEP — CEPheid
• JSGA — Japan Spaceguard Association
• CMOS — Complimentary Metal Oxide Semiconductor
• OAOT — Orbiting Astronomical Observatory Technology
• RTC — Researching The Cosmos
• UG — U Geminorum
• RSN — Radio SuperNova
• WFAO — Wide Field Adaptive Optics
• PBO — Pine Bluff Observatory
• CGCS — Cool Galactic Carbon Star
• CTTS — Classical T Tauri Star
• EPAO — Educational and Public Affairs Office
• GIMP — Geomagnetically Induced Motion Problem
• TAI — International Atomic Time (Temps Atomique International) [to 2015 July 1st, 35s ahead of UTC; from 2015 July 1st, 36s ahead of UTC.]
• MFP — magnetic field perturbation theory
• ECEF — EarthCentered EarthFixed
• AER — Astronomy Education Review
• SAD — Supra-Arcade Downflow
• BSS — Bigelow Sky Survey
• WAC — Wide Angle Converter
• AIM — Aeronomy of Ice in the Mesosphere
• HAC — Huachuca Astronomy Club
• CFHT — Canada-France-Hawaii Telescope
• NEAT — Near Earth Asteroid Tracking
• HPR — Hardware Problem Report
• NGT — Next Generation Telescope
• MPEC — Minor Planets Electronic Circular
• PEPSI — PEP System
• M — Mira
• SCUBA — Submillimetre Common User Bolometer Array
• ESTEC — European Space Research and Technology Center
• PSR — Pulsar
• BATTERS — Bisei Asteroid Tracking Telescopes for Rapid Survey
• GMOS — Gemini Multi-Object Spectrographs
• TFOV — target field of view
• HETE-2 — high energy transient explorer
• USOC — Unified System Orbit Computation
• IRD — Interface Requirements Document
• CTWG — Calibration Targets Working Group
• BCD — Blue Compact Dwarf
• NESS — Near Earth Space Surveillance
• SDS — Star Diagnosis System
• SIMM — Standard Inline Memory Module
• SEP — Solar Energetic Particle
• NIR — Near Infrared Research
• GKS — Graphic Kernel System
• SMS — Sun Moon and Stars
• DCL — Digital Control Language

• WFIS — Wide-Field-of-view Imaging Spectrometer
• SSA — Star Selector Assembly
• SVAL — Soviet Astronomy Letters
• DBSA — Database and System Administration team
• EGRET — Energetic Gamma-Ray Experiment Telescope
• VF — Variable Frequency
• STARS — Seismic Telescope for Astrophysical Research from Space
• SDD — Single Dish Data
• TRES — Transatlantic Exoplanet Survey
• MEPCO — Meeting of European Planetary and Cometary Observers
• CP — Chemically Peculiar
• LPCI — Lunar Phases Concept Inventory
• SSB — Science Software Branch
• TAMS — Terminal-Age Main Sequence
• IRIS — InfraRed Imaging Surveyor
• VMC — Velocity Modulating Camera
• SIP — Software Implementation Plan
• MSC — Mission Support Calibration
• TBC — Time Base Correctors
• LM — Low Mass
• CSMA — Committee on the Status of Minorities in Astronomy
• LSA — Large Science Aperture
• TSRS — Trieste Solar Radio System
• UCLAP — University of California Los Angeles - Astronomical Papers
• WTTS — Weak-Line T-Tauri Star
• PVTEL — PV TELescopii
• DCMF — Data Capture and Management Facility
• WDM — Warm Dark Matter
• VIMOS — Visible Multiobject Spectrograph
• MOST — Microvariability and Oscillations of STars Telescope
• XRB — X-Ray Background
• EBA — Electronics Bay Assembly
• MBA — Main-Belt Asteroid
• SOFA — Selectable Optical Filter Assembly
• VVS — Vereniging voor Sterrenkunde
• CODE — Creation Out of Deep Energy
• SAMPEX — Solar Anomalous And Magnetospheric Particle Explorer (spacecraft)
• GRU — Ground Replaceable Unit
• SRAA — Scenic Rim Astronomy Association, Inc.
• CCDS — Centers for the Commercial Development of Space
• PRR — preliminary requirements review
• MUNICS — MUnich Near-Infrared Cluster Survey
• WAPP — Wide-base Arecibo Pulsar Processor
• LN2 — liquid N2
• LOFAR — Low Frequency Array
• EBL — Extragalactic Background Light
• DIB — Diffuse Interstellar Band
• IGI — Interactive Graphics Interpreter
• TAC — The Astronomy Connection
• AC — Ascendant Cusp

• UVOT — Ultraviolet Optical Telescope
• PDS — Photometric Data Systems
• SPSO — Science Program Selection Office
• RSA — Revised Shapley-Ames
• EED — Extracted Engineering Data
• SOFIA — Stratospheric Observatory for Infrared Astronomy
• DCX — Delta Clipper Experimental
• GASA — Graduate Astronomy Students Association
• MDB — multiplexed data bus
• SCMS — STScI Code Management System
• SXPHE — SX PhoEnicis
• GSY — Galactic Standard Year
• AMSU — Advanced Mass Spectrometry Unit
• EOR — End of Record
• SVA — Soviet Astronomy
• MOR — Mission Operations Room
• ERO — Extremely Red Object
• QE — Quality Engineer
• ULIRG — Ultraluminous Infrared Galaxy
• EOT — End Of Tape
• PM — Primary Mirror
• SCT — Schmidt-Cassegrain Telescope
• LFSA — List of Frequently Seen Acronyms
• ORFEUS — Orbiting and Retrievable Far and Extreme Ultraviolet Spectrometer
• ACTS — Advanced Communications Technology Satellite
• SLOWPOKES — Sloan Low-mass Wide Pairs of Kinematically Equivalent Stars
• WAT — Wide Angle Tail
• CCS — Cool Carbon Star
• RS — Reed-Solomon error detection
• ICET — International Center for Earth Tides
• AOSS — AURA Observatory Support Services
• MICO — Multi-year Interactive Computer Almanac
• UAO — University of Arizona Observatories
• BHAS — Black Hills Astronomical Society
• LSVT — Large Solar Vacuum Telescope
• FIGV — Factor Inercial de Ganho solar do enVidracado
• GMT — Greenwich Mean Time (now obsolete)
• CAL — Casual Astronomy League
• TO — Texas Instruments
• PROPLYD — Protoplanetary Disk
• WBS — Wide Band Spectrometer
• SSS — SuperCOSMOS Sky Surveys
• SZE — Sunyaev-Zeldovich Effect
• SB — Super Bright
• HMC — Halley Multicolor Camera
• SAR — Software Analysis Room
• PMS — Pre–Main Sequence
• URPX — Uranian Ring Plane Crossing
• SLSN-R — radioactively powered SLSNe
• IO — Interacting Object

• UESAC — Uppsala-ESO Survey of Asteroids and Comets
• NTT — New Technology Telescope
• DCB — Design Change Board
• WBS — Work Breakdown Schedule
• ECO — Earth crossing object
• WSF — Wake Shield Facility
• CRAF — Committee on Radio Astronomy Frequencies
• VTT — Vacuum Tower Telescope
• CTA — Computer Technology Associates (GSFC)
• ♆ — Neptune
• WIYN — Wisconsin, Indiana University, Yale University, and NOAO (National Optical Astronomy Observatories) Observatory
• SSE — Star Selector Encoder
• CCSN — core-collapse supranovæ
• SH — Super Hot
• GAAC — Gloucester Area Astronomy Club
• ORD — Operations Requirements Document
• SETG — Search for Extra-Terrestrial Genomes
• ARAS — Astronomical Ring for Access to Spectroscopy
• NFF — New Firm Formation
• CVA — Central Valley Astronomers
• SBIG — Santa Barbara Instrument Group
• ♇ — Pluto
• SSC — STEIS Steering Committee
• RMS — Republic Management Systems, Inc.
• SCL — Service Control Level
• CA — Coronagraphic Apodizer
• UV-VIS — Ultraviolet - Visible
• ILRT — intermediate-luminosity red transients
• BIMA — Berkeley-Illinois-Maryland Array
• NGST — Next Generation Space Telescope
• RSS — Rotating Service Structure
• SSPS — Sky Survey Prototype System
• RAMBO — Robust associations of massive baryonic objects
• ITT — International Telephone and Telegraph Corporation
• ASW — Address and Synchronization Word
• MUF — Mysterious Unknown Force
• OAO — Okayama Astrophysical Observatory
• LST — Large Stellar Telescope
• IMAGE — Imager for Magnetopause to Auroral Global Exploration
• ORI — Orbit Replaceable Instrument
• TC — Test Conductor (Controller)
• MPS — Microlensing Planet Search
• MTL — Mission Time Line
• TMN — Tokyo Meteor Network
• MUSES — MU Space Engineering Spacecraft
• QBSA — Quarterly Bulletin on Solar Activity
• VCC — Virgo Cluster Catalog
• BHC — Black Hole Candidate
• RCB — R Coronae Borealis
• GTC — Gran Telescopio Canario

• MACRO — Monopoles, Astrophysics, and Cosmic Ray Observatory
• RRL — RR Lyrae
• NHICAT — Northern HIPASS CATalog
• ASWG — ATST (Advanced Technology Solar Telescope) Science Working Group
• SPST — Science Planning and Scheduling Team
• NDV — NASP Derived Vehicle
• STAN — Space Telescope Analysis Newsletter
• EOL — Earth Observing Laboratory (formerly ATD)
• EC — Embedded Cluster
• XRF — X-Ray Flash
• LIC — local interstellar cloud
• WASP — Wide Angle Search for Planets
• ISGRI — INTEGRAL Soft Gamma-Ray Imager
• SITB — System Integration and Testing Branch
• SIDS — SI Detector System
• SDAS — Scarborough And District Astronomy Society
• PGC — Principal Galaxy Catalog
• GGC — Giant Gravity Core
• NSUM — Non-Spatial Universal Mechanics
• GCI — geocentric intertial
• WINAR — Windsor Observatory Annual Report
• MSE — Milton S. Eisenhower library
• KM — Kilometres
• DNS — Double Neutron Star
• R&R — Reproducibility And Repeatability
• SCRT — Stockholm Centimetre Radio Telescope
• FD — File Descriptor
• CGSS — Catalogue of Galactic S Stars
• CRSR — Center for Radiophysics and Space Research
• RSAA — Research School of Astronomy and Astrophysics
• VLB — Very Long Baseline
• BLAST — Balloon-borne Large Aperture Submillimeter Telescope
• CAMC — Carlsberg Automatic Meridian Circle
• IAPPP — International Amateur/Professional Photoelectric Photometry
• RE — ROSAT (ROentgen SATellite) EUV (Extreme Ultra-Violet)
• SDH — science data header
• MMTF — Maryland-Magellan Tunable Filter
• WFPCII — Replacement For WFPC
• MIPS — Multi-band Imaging Photometer
• PEGA — Programs in Extra-Galactic Astronomy
• EGP — Extrasolar Giant Planet
• OZ — Objective Zenith
• STIS — Space Telescope Imaging Spectrograph
• SPC — Short Period Comets
• ODX — Occular Dynamic eXperiment
• COD — Carbon Oxygen Dwarf
• VSAT — Very Small Angle Tracker
• HKO — Hong Kong Observatory
• CIDA — Cometary Interplanetary Dust Analyzer
• WYAS — West Yorkshire Astronomical Society

• NLDP — National Launch Development Program
• BCEP — Beta CEPhei
• LTP — Lunar Transient Phenomenon
• EME — Earth-to-Moon-to-Earth
• BO — Biological Origin
• OT — Off-Topic
• CASA — Common Astronomy Software Applications
• HDF — Hubble Deep Field
• UKSA — United Kingdom Space Agency
• DRAO — Dominion Radio Astrophysical Observatory
• NA — Negative Alignment
• EO — Earth Observatory
• WHDF — William Herschel Deep Field
• SRC — Science Research Council (formerly DSIR) (U.K.)
• C&T — Communications and Tracking
• BE — Bright Elements
• TESS — Transiting Exoplanet Survey Satellite
• SUSI — Sydney University Stellar Interferometer
• DMS — Daily Mission Schedule
• EB — Eclipsing Beta
• IYA — International Year of Astronomy
• TAA — Tasmanian Amateur Astronomers
• SET — Science, Engineering and Technology
• MHGL — Mexican Hat Gravitational Lens
• LMS — Lower Main Sequence
• RS — Resource Scheduler
• FAT — Filtered Array Technology
• MMTO — Multiple Mirror Telescope Observatory
• CVP — Continuously Variable Planetary
• NGC — New General Catalog
• MARS — MOUNTAIN ASTRONOMICAL RESEARCH SECTION
• WAVE — Wide Area Vertical Expansion
• EVGA — European VLBI Group for Geodesy and Astrometry
• FRONT — Front Range Observational Network Testbed
• SWIRE — Spitzer Wide-area InfraRed Extragalactic survey
• SCCCB — Science Computing Configuration Control Board
• ACIT — Automatic Comet Imaging Telescope
• MPPG — Mars Program Planning Group
• HTFA — High Temperature Flowing Afterglow
• VFIR — Very Far Infra-Red
• TRACE — Transition Region and Coronal Explorer
• VLM — Very Low Mass
• TCS — Thermal Control System (Subsystem)
• IRAF — Image Reduction and Analisys Facility
• MPAS — Mornington Peninsula Astronomical Society
• SGRA — School of Galactic Radio Astronomy
• WUVC — Wezen Updated Variability Catalogue
• LTT — Luyten Two-Tenths
• MLPS — Mid-Latitude Plasma Structuring
• NT — Non-Thermal

• NEAF — North East Astronomy Form
• INFOL — Ingredient Necessary FOr Life
• TAMS — Terminal Age Main Sequence
• SPD — Science Programs Division
• VOS — Virtual Operating System
• SZA — Sunyaev-Zeldovich Array
• ARTEMIS — Advanced Relay TEchnology MISsion
• NIR — Near Infrared Reflection
• VERA — VLBI Exploration of Radio Astrometry
• WDS — Washington Double Star Catalog
• LADC — Longitudinal Atmospheric Dispersion Compensator
• MMA — Milli Modulation Amplitude
• VMO — Valley of the Moon Observatory
• WCT — Window Correction Table
• IUESIPS — Iue Spectral Image Processing System
• WSO — World Space Observatory
• WFAU — Wide-Field Astronomy Unit
• EGGR — Eggen & Greenstein
• SGD — Solar Geophysical Data
• COHSI — Cambridge OH-Suppression Instrument
• PZT — Photographic Zenith Tube
• B — Barnard
• EMU — Extra-vehicular Mobility Unit
• VPO — Virtual Public Observatory
• SLSN-II — hydrogen-rich SLSNe
• SCO — Software Change Order