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Scientific & Educational >> Astronomy Abbreviations

Look through 3189 acronyms and abbreviations related to Astronomy:

• IMHO — In My Humble Opinion
• LAN — Local Area Network
• HIV — Human Immunodeficiency Virus I
• PPNE — Proto-Planetary Bebulae
• PNX — Pulsar Network Exchange
• N/A — Not Applicable
• ETA — Estimated Time of Arrival
• HIPAA — Health Insurance Portability and Accountability Act of 1996
• MADOO — Madras Observatory Astronomical Observations
• ROM — Read-Only Memory
• LUNNO — Lunar Upper Navigation Nacelle Orb
• FTP — File Transfer Protocol
• LASER — Light Amplification By Stimulated Emission Of Radiation (cf. Maser)
• A&AT — Astronomical and Astrophysical Transactions
• WAXD — Wide-Angle X-Ray Diffraction
• AHRQ — Agency for Health, Research, and Quality
• ANSI — American National Standards Institute, Inc.
• ASAP — As Soon As Possible (pronounced AY-sap)
• PIFOV — Planet In Field Of View
• MM — Millimeter
• A&ARV — Astronomy and Astrophysics Review
• B-V — Binary - Variable star
• URL — Universal Resource Locator
• BTW — By The Way
• CPU — Central Processing Unit
• ICD — Interface Control Document
• E&PSL — Earth and Planetary Science Letters
• JAAVSO — Journal of the American Association of Variable Star Observers
• ZAND — Z ANDromedae
• P&SS — Planetary and Space Science
• A — Ampere
• WHO — World Health Organization
• R&QA — Reliability & Quality Assurance
• QJRAS — Quarterly Journal of the Royal Astronomical Society
• PPM — parts per million
• M&PS — Meteoritics and Planetary Science
• ZEPLIN — ZonEd Proportional scintillation in LIquid Noble gases
• FIFO — First In, First Out
• NHLBI — National Heart, Lung, and Blood Institute
• SADE-1 — Solar Array Deploy Electronics-11
• JASEG — Journal of the Astronomical Society of Egypt
• COB — close of business (End of duty day)
• XEUS — X-Ray Evolving Universe Spectroscopy Mission
• ROM — Rough Order of Magnitude
• SAAOC — South African Astronomical Observatory Circular
• PALLO — Publications of the Allegheny Observatory of the University of Pittsburgh
• P/SOS — Payload/Spacecraft Operations Simulator
• IP — Internet Protocol
• WASOA — Washburn Observatory Astrophysics
• ☿ — Mercury

• PDR — Preliminary Design Review
• P-E — Perkin-Elmer Corporation
• QC — Quality Control
• PABEI — Progress in Astronomy
• RF — Radio Frequency
• DAOAR — Dominion Astrophysical Observatory Annual Report
• BAICZ — Bulletin of the Astronomical Institutes of Czechoslovakia
• E-ELT — European Extremely Large Telescope
• AIAA — American Institute of Aeronautics and Astronautics, Inc.
• CDR — Critical Design Review
• JAPAS — Journal of Astrophysics and Astronomy Supplement
• ISO — International Organization for Standardization
• JALPO — Journal of the Association of Lunar & Planetary Observers
• F&CRE — Flower and Cook Observatory Reprints
• COBRAS-SAMBA — Cosmic Background Radiation Anisotropy Satellite / Satellite for Measurement of Background Anisotrop
• VATOP — Vatican Observatory Publications
• CY — Calendar Year
• WWW — World Wide Web
• AFAIK — As Far As I Know
• ASTM — American Society for Testing and Materials (Philadelphia, Pennsylvania)
• RFP — Request For Proposal
• LAMOST — Large sky Area Multi-Object fiber Spectroscopic Telescope
• MADOB — Madras Observatory Observations
• CV — Curriculum Vitae
• CCB — Configuration Control Board
• PADEU — Publications of the Astronomy Deparment of the Eotvos Lorand University
• AA&AA — Astronomy and Astrophysics Abstracts Heidelberg
• CSA — Canadian Space Agency
• BTU — British Thermal Unit
• LAD-C — Large Area Debris Collector
• MOA — Memorandum Of Agreement
• UFO — Unidentified Flying Object
• EAPSNET — East-Asian Planet Search Network
• SAR — Search And Rescue
• EEO — Equal Employment Opportunity
• MOU — Memorandum of Understanding (an MOU between Food & Drug Administratin and a regulatory agency in another country allows mutual recognition of inspections)
• JAPOA — Japan Amateur Photoelectric Observers Association
• EST — Eastern Standard Time
• R&D — Research & Development
• DEC — Digital Equipment Corporation
• ESA — European Space Agency
• FYI — For Your Information
• ASCII — American National Standard Code for Information Interchange
• ROI — Region of Interest
• CD — Compact Disc
• MTBF — Mean Time Before Failure
• CBO — Congressional Budget Office
• AHU — Air Handling Unit
• GATT — General Agreement on Tariffs and Trade (government)
• MRI — Magnetic Resonance Imaging

• FOV — Field Of View (satellite)
• NCCLS — National Committee for Clinical Laboratory Standards
• ADP — Automated Data Processing
• DOT — Department of Transport
• EOF — End Of File
• GPS — Global Positioning System (ex-NAVSTAR)
• CKSM — checksum
• NFS — Network File System
• EU — European Union (1994; formerly referred to as the EEC or EC)
• MRB — Material Review Board
• HMO — Health Maintenance Organization
• RAM — random-access memory
• GO — General Observer
• FAQ — Frequently Asked Questions (sometimes Pronounced Fak)
• MB — Megabyte
• FORTRAN — FORmula TRANslation (a computer language)
• CRS — Congressional Research Service
• CRT — Cathode Ray Tube (type of TV)
• PPO — Preferred provider organization
• MIS — Management Information System (OSHA)
• WAN — Wide Area Network
• TBD — To Be Determined
• ELV — Expendable Launch Vehicle
• APU — Auxiliary Power Unit
• USAF — United States Air Force
• LTE — Local Thermodynamic Equilibrium
• MPH — Miles Per Hour
• RPM — Revolutions Per Minute, (Rotations Per Minute)
• GMP — Good Manufacturing Practice
• FY — Fiscal Year
• DOD — United States Department of Defense
• AU — Astronomical Unit
• O&M — Operation and Maintenance
• SQA — Software Quality Assurance
• PT — Physical Therapy
• STS — Space Transportation System
• COSPAR — Committee on Space Research (ICSU)
• IFOV — Instantaneous Field Of View
• AARP — American Association of Retired Persons
• OPD — Outpatient Department
• SCSI — Small Computer System Interface
• NM — Nanometer
• QA — Center for Quality Assurance in International Education
• VHF — Very High Frequency
• CRO — Contract Research Organization
• AAS — American Astronomical Society
• DDL — Data Definition Language
• DME — Durable Medical Equipment
• DMSP — Defense Meteorological Satellite Program (U.S.)
• ROI — Return on Investment

• NSO — National Solar Observatory
• MHZ — Megahertz (Megacycles Per Second)
• SOW — Statement Of Work
• CFR — Code of Federal Regulations
• FDA — Food Drug Administration
• ADS — Astrophysics Data System
• KG — Kilogram
• SIR — Shuttle Imaging Radar
• SISEX — Shuttle Imaging Spectrometer Experiment
• CEN — Committee European de Normalisation
• JAXA — Japan Aerospace Exploration Agency
• DC — Direct Current
• HCFA — Health Care Financing Administration
• LOE — Level Of Effort
• CM — Centimeter
• FFT — Fast Fourier Transform
• NEC — National Electrical Code
• PHP — Planetary Horizontal Platform
• FTA — Fault Tree Analysis
• LOS — Line Of Sight
• NAM — National Association of Manufacturers
• DOE — United States Department of Energy (government)
• ACE — Advanced Composition Explorer
• NIOSH — National Institute for Occupational Safety and Health
• DCC — Document Control Center
• SDD — Software Design Document
• LEO — Low Earth Orbit (satellite communications)
• AMA — American Medical Association
• OSO — Orbiting Solar Observatory
• ACS — American College of Surgeons
• HEAO — High Energy Astronomy Observatory
• OAI — Official Action Indicated (serious Food & Drug Administration post-inspection classification)
• UHF — Ultra High Frequency (300-3000 MHz; 1m-10cm)
• I/O — Input/Output
• NIST — National Institute of Standards and Technology
• OMB — Office of Management and Budget (U.S.)
• BHB — Black Hole Bang
• CM — Configuration Management
• ISRO — Indian Space Research Organisation
• CRF — Case Report Form
• STR — Software Test Report
• DOMSAT — Domestic Communications Satellite System
• NSF — National Sanitation Foundation
• CRC — Contrôle de Redondance Cyclique (French: Cyclic Redundancy Check)
• ACRIM — Active Cavity Radiometer Irradiance Monitor (EOS)
• 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
• SIG — Special Interest Group
• UTC — Coordinated Universal Time
• HR — HUMAN RESOURCES
• HQ — Headquarters (HDQ Preferred)

• FTC — Federal Trade Commission (U.S.)
• DD — Deputy Director
• AAAS — American Association for the Advancement of Science
• PAH — Polycyclic Aromatic Hydrocarbon
• OSHA — Occupational Safety and Health Act (1970)
• NSA — National Security Agency
• BCD — Binary-Coded Decimal
• LED — law enforcement desk; light emitting diode
• FTE — Full-Time Employee
• ADF — Astrophysics Data Facility
• PSI — Pounds Per Square Inch (Static Pressure)
• NAS — United States National Academy of Sciences
• SN — Space Network
• M — Meter
• TV — Television
• HZ — cycles per second (hertz)
• BER — Bit-Error Rate
• 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.
• BMA — British Medical Association
• CAP — College of American Pathologists
• ISF — Industrial Space Facility
• TLA — Three Letter Abbreviation
• NEMA — National Electric Manufacturer's Association
• EDT — Eastern Daylight Time
• PM — Project Manager
• ISS — International Space Station
• RFI — Radio Frequency Interference
• CPI — Continuous Process Improvement
• GIF — Graphic Interchange Format
• AAMI — Association for the Advancement of Medical Instrumentation
• GAO — Government Accountability Office [formerly the General Accounting Office]
• ISO — Infrared Space Observatory
• OS — Operating System
• EOY — End-Of-Year
• AAMC — American Association of Medical Colleges
• NOAA — National Oceanic and Atmospheric Administration (US)
• AMU — Atomic Mass Unit
• BAT — Burst Alert Telescope
• HOPPS — Hospital Outpatient Prospective Payment System
• FAR — Flight Acceptance Review
• BAE — British Aerospace Systems, LTD
• CASE — computer-automated software engineering
• NIH — NATIONAL INSTITUTE OF HEALTH
• WMO — World Meteorological Organization (ICSU)
• JPL — Jet Propulsion Laboratory (California Institute of Technology) (NASA)
• A/N — Alphanumeric
• 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
• BOD — Board of Directors (Budget)
• IRB — Institutional Review Board
• NAI — No Action Indicated (Most Favorable Food & Drug Administration Post-inspection Classification)

• MS — Millisecond
• HV — High Voltage
• JSC — Johnson Space Center (Houston, TX)
• KHZ — kilohertz (1000 cycles per second)
• RISC — Reduced Instruction Set Computer
• GMT — Greenwich Mean Time (Zulu)
• DMA — direct memory access (computer term)
• IEEE — Institute of Electrical and Electronic Engineers, Inc.
• K — Kilo-
• AHA — American Hospital Association
• AOCS — Attitude and Orbit Control System
• CW — Clockwise
• NASDA — National Space Development Agency of Japan
• APS — American Physical Society
• FOS — Faint Object Spectrograph
• CCTV — Closed Circuit Television
• COTS — Commercial Off the Shelf Software
• GE — General Electric American Communications Inc.
• LOR — Lunar Orbit Rendezvous
• DBMS — Data Base Management System
• NIST — National Institute of Standards & Technology (US)
• POS — Point of Service Plan
• CHSAJ — Chinese Society of Astronautics Journal
• NAFTA — North American Free Trade Agreement
• MMS — Module Management System
• S/N — Serial Number
• SPR — Software Problem Report
• AJ — Astronomical Journal
• OTA — Optical Telescope Assembly
• IR — Infrared
• BNSC — British National Space Centre
• SF — Science Fiction
• IEC — International Electrotechnical Commission
• UCL — University College London
• GMT — Giant Magellan Telescope
• COMSP — Commercial Space
• HF — High Frequency
• MSFC — Marshall Space Flight Center (Huntsville AL)
• BPS — bits per second
• NBS — National Bureau of Standards (US)
• ISAS — Institute of Space and Astronautical Sciences (Japan)
• SNR — Signal-to-Noise Ratio
• A&A — Astronomy and Astrophysics
• COBE — Cosmic Background Explorer Satellite (NASA)
• SAS — Small Astronomy Satellite
• EOL — End Of Line
• RAS — Royal Astronomical Society
• ADC — Analog-Digital Converter
• FM — Flight Model
• SSI — Space Studies Institute

• CHJAA — Chinese Journal of Astronomy and Astrophysics
• APO — Apache Point Observatory
• A&G — Astronomy and Geophysics
• CEMDA — Celestial Mechanics and Dynamical Astronomy
• UV — Ultraviolet (Light)
• CSTC — Consolidated Space Test Center
• NRC — National Response Center
• PR — Public Relations
• BASD — Ball Aerospace Systems Division
• DAR — Defense Acquisition Regulation
• HHS — Health and Human Services Department
• USGS — United States Geological Survey (DOI)
• ADA&A — Advances in Astronomy and Astrophysics
• DIST — Distance
• ADIL — Astronomy Data Image Library
• LOI — Lunar Orbit Insertion
• ASQ — Alpha System Qualification
• LANL — Los Alamos National Laboratory
• VLF — Very Low Frequency
• FAC — Facilities
• CCAFS — Cape Canaveral Air Force Station, an air force base in Florida where NASA launches satellites from.
• RMS — root mean square (preferred over "RMS")
• CDRH — Center for Devices and Radiological Health (Food & Drug Administration)
• SME — Solar Mesosphere Explorer
• CDM — Cold Dark Matter
• EDO — Extended Duration Orbiter
• ALEXIS — Array of Low Energy X-ray Imaging Sensors
• IAU — International Astronomical Union
• GR — General Relativity
• ERBS — Earth Radiation Budget Satellite
• CITECH — Center for Information on Technology in Healthcare
• SCA — Shuttle Carrier Aircraft
• WG — Working Group
• JILA — Joint Institute for Laboratory Astrophysics
• DRS — Data Relay Satellite
• ESTEC — European Space Research and Technology Centre
• SARA — Society of Amateur Radio Astronomers
• UPS — Uninterruptible Power Supply
• ATO — Abort To Orbit
• DFRC — Dryden Flight Research Center
• RSA — Russian Space Agency
• FD — Flight Day
• SRL — Space Radar Laboratory
• DSN — Deep Space Network - network of large antennas and communication facilities.
• MECO — Main Engine Cutoff
• TAG — Technical Advisory Group for Biological Control Agents of Weeds
• RADAR — RAdio Detection And Ranging
• BUBES — Bulletin of the University of Besancon Observatory
• FF — Flat Field
• LARC — Langley Research Center (NASA)

• RSN — Real Soon Now [which may be a long time coming]
• ESAJ — European Space Agency Journal
• ABBOO — Abbadia Observatory Observations
• N — Newton
• CG — Center of Gravity (DXS)
• ARC — Ames Research Center (NASA)
• DUNRE — Dunsink Observatory Reprints
• WP — Work Package
• NASP — National Aerospace Plane
• CHJSS — Chinese Journal of Space Science
• HP — Hewlett Packard's
• PDP — Postinsertion Deorbit Preparation
• ALS — Advanced Launch System
• OSSE — Oriented Scintillation Spectrometer Experiment
• MOSPO — Mobile Satellite Photometric Observatory
• 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
• CHSST — Chinese Space Science Technology
• DSMB — Data Safety Monitoring Board
• SVD — Singular Value Decomposition
• ROSAT — Roentgen Satellite
• USP — United States Pharmacopeia
• ROTFL — Roll On The Floor Laughing
• PPARC — Particle Physics and Astronomy Research Council
• JSAR — Journal of Space Astronomy Research
• MITI — Ministry of International Trade & Industry (Japan)
• RTG — Radioisotope Thermoelectric Generator
• FAT — File Allocation Table
• FITS — Flexible Image Transport System
• IIRC — If I Recall Correctly
• FU — Flight Unit
• ASC — Ambulatory Surgery Center
• ANS — Astronomical Netherlands Satellite
• 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)
• DEC — Declination
• OIG — Office of Inspector General
• ST — Space Telescope
• N — Nitrogen
• BBF — Bursty Bulk Flow
• NORAD — North American Air Defense (Command)
• CCD — Charge Coupled Device - a device for the movement of electrical charge.
• ND — NASA Document
• LBNL — Lawrence Berkeley National Laboratory (US)
• ASTRA — Advanced Star Tracker
• AGB — Asymptotic Giant Branch
• ASI — Agenzia Spaziale Italiana
• PCM — Pulse-Code Modulation
• EC — European Community
• DSCS — U.S. Defense Satellite Communications System
• AURA — Association of Universities for Research in Astronomy, Inc.
• ASM — American Society for Microbiology

• KB — Kilobyte: One thousand and twenty-four bytes kbps kilo bit per second
• CASJ — Canadian Aeronautics and Space Journal
• NRL — Naval Research Laboratory
• CFA — Harvard-Smithsonian Center for Astrophysics, USA
• DUNOP — Dunsink Observatory Publications
• DFRF — Dryden Flight Research Facility
• GSFC — Goddard Space Flight Center (Greenbelt, MD)
• SI — Scientific Investigation
• RCS — Radar Cross Section
• D — Diameter
• PHRMA — Pharmaceutical Research and Manufacturers of America (formerly PMA, Pharmaceutical Manufacturers Association)
• SRM — Solid Rocket Motor
• PDS — Planetary Data System
• PR — Problem Report
• MOL — Manned Orbiting Laboratory
• CHIPS — Cosmic Hot Interstellar Plasma Spectrometer
• GEM — Giotto Extended Mission
• NASA — National Aeronautics and Space Administration (US)
• D — Director
• KSC — John F. Kennedy Space Center
• EUVE — Extreme Ultraviolet Explorer (NASA Satellite)
• HD — Hilary Duff
• COCAM — Contributions from the Cambridge Observatory England
• CHARA — Center for High Angular Resolution Astronomy
• BAO — Beijing Astronomical Observatory
• IPAC — Infrared Processing and Analysis Center
• NSSDC — National Space Science Data Center (Greenbelt, MD)
• AG — Astronomische Gesellschaft
• CASS — Center for Advanced Space Studies
• ASRM — Advanced Solid Rocket Motor
• APJS — Astrophysical Journal Supplement Series
• MCC — Mission Control Center (JSC)
• SIM — Simulator
• JOP — Jupiter Orbiter Probe
• ST — Star Tracker
• LCC — Launch Control Center (KSC)
• WET — Whole Earth Telescope
• ERS — Earth Resources Satellite
• ORIG — Origin
• ESRO — European Space Research Organisation
• ARMOL — Armagh Observatory Leaflet
• MIT — Massachusetts Institute of Technology (U.S.)
• FHST — fixed-head star tracker
• NABR — National Association for Biomedical Research
• BASBR — Bulletin of the Astronomical Society of Brazil
• AGU — American Geophysical Union
• DIN — Deutsches Institut für Normung.
• FRR — Flight Readiness Review
• AMPS — Atmospheric Magnetospheric Plasma System
• RTLS — Return To Launch Site

• TAC — Telescope Allocation Committee
• JANSC — Journal of Astronautical Sciences
• SUMS — Shuttle Upper Atmosphere Mass Spectrometer
• IPA — Individual Practice Association
• ISU — International Space University
• MMDA — Michigan Medical Device Association
• GHZ — Gigahertz
• VBR — Variable Bit Rate (ATM)
• ASCA — Advanced Satellite for Cosmology & Astrophysics
• BAA — British Astronomical Association
• M&P — Materials and Processes
• IDE — Investigational Device Exemption
• ADS — Astrophysics Data Service
• CMB — Cosmic Microwave Background
• CHIME — College of Healthcare Information Management Executives
• LMSS — Lunar Mapping and Survey System
• LM — Lunar Module
• SST — States Supersonic Transport
• CASJQ — Canadian Aeronautics and Space Journal Quarter
• ESDAC — European Space Data Center
• SLAR — Side-Looking Airborne Radar
• ASTHE — Astronomical Herald
• ABHI — Association of British Health-Care Industries
• WAIS — Wide Area Information Server
• MTPE — Mission To Planet Earth
• CO — Contracting Officer
• IUS — Inertial UPper Stage (was Interim UPper Stage)
• VMS — Virtual Memory System
• INS — Inertial Navigation System
• DC — Delta Clipper
• DMERC — Durable Medical Equipment Regional Carrier
• ASA — Astronomical Society Of The Atlantic
• AFSD — Air Force Space Division
• RVU — Relative Value Unit
• VLSI — Very-Large-Scale Integration
• DOH — Department of Health (various countries)
• NOAO — National Optical Astronomy Observatories (Tucson, AZ)
• MMU — Manned Maneuvering Unit
• WGPSN — Working Group for Planetary System Nomenclature
• AMS — American Meteor Society
• AO — Adaptive Optics
• TM — Telemetry
• BTOK — Bulletin of the Tokyo Astronomical Observatory
• GCP — Good Clinical Practice
• MGMA — Medical Group Management Association
• NASM — National Air and Space Museum
• ASHP — American Society of Hospital Pharmacists
• TNM — The New Millenium
• BLOB — Binary Large Object
• EIA — Extended Interaction Amplifier

• CRB — Change Review Board
• MASER — microwave amplification by stimulated emission of radiation
• CMP — Competitive Medical Plan
• SAR — synthetic aperture radar (satellite)
• APL — Applied Physics Laboratory (at Johns Hopkins)
• IUE — International Ultraviolet Explorer
• AOA — Angle Of Attack
• OSCAR — Orbiting Satellite Carrying Amateur Radio
• MEM — Meteoroid Exposure Module
• AE — Adverse Event
• HTH — Hope This Helps. Email abbreviation when replying to requests. Potentially counter-productive if the recipient doesn't understand what it means...
• SDR — System Design Review
• DDCMP — Digital Data Communications Message Protocol
• LGA — Low Gain Antenna
• VSOP — VLBI Space Observatory Program
• CTE — Charge Transfer Efficiency
• ISO 14155 — Current Widely Accepted Standard
• SNII — SuperNova of Type II
• COWRO — Contributions from the Wroclaw Astronomical Observatory
• MMI — Man-Machine Interface
• SAO — Smithsonian Astrophysical Observatory
• AXAF — Advanced X-Ray Astrophysics Facility
• NSP — NASA Support Plan
• CPI — characters per inch
• OSS — Office of Space Sciences
• PHS — Public Health Service (U.S.)
• SSME — Space Shuttle Main Engine
• ANEDI — Annals of the Royal Observatory, Edinburgh
• LPL — Lunar and Planetary Laboratory
• ASPP — Atmospheric and Space Plasma Physics
• NASAL — NASA Circular Letter
• AT — Acceptance Test
• LEM — Lunar Excursion Module
• SPVW — Spaceview
• CADC — Canadian Astronomy Data Centre
• AREG — Astronomical Register
• TES — Thermal Emission Spectrometer
• ECSS — European Cooperation for Space Standardization
• COSTAR — Corrective Optics Space Telescope Axial Replacement
• LPS — Launch Processing System
• KM — Kilometer (1,000 meters)
• CEMEC — Celestial Mechanics
• CDT — Connaissance Des Temps
• AAVSO — American Association of Variable Star Observers
• R/T — Real Time
• LRB — Liquid Rocket Booster
• DAO — Dominion Astrophysical Observatory (Victoria, BC, Canada)
• DSS — Deep Space Station
• GSC — Guide Star Catalog
• GHTF — Global Harmonization Task Force

• SSID1 — Soviet Space Insertion Diverter One
• APJ — Astrophysical Journal
• ESRIN — European Space Research Institute
• HSP — High Speed Photometer
• NASAR — NASA Reference Publication
• ESO — European Southern Observatory
• ACICH — Astronomical Circular
• JAMA — Journal of the American Medical Association
• LHEA — Laboratory for High Energy Astrophysics
• JAC — Joint Astronomy Centre
• ZAHB — Zero-Age Horizontal Branch
• PROM — Programmable Read-Only Memory
• NEODYS — Near Earth Objects Dynamic Site
• CSA — Canadian Standards Association (like UL)
• IRSA — Infrared Science Archive
• NCOS — National Commission on Space
• USRA — Universities Space Research Association
• DYERE — Dyer Observatory Reprints
• SEDS — Students for the Exploration and Development of Space
• ACMAN — Astronomical Contributions from the University of Manchester
• SIDC — Sunspot Index Data Center
• PRAES — Progress in Aerospace Sciences
• MFPE — Mission from Planet Earth
• ORROE — Occasional Reports of the Royal Observatory, Edinburgh
• JEM — Japanese Experiment Module
• ADSPR — Advances in Space Research
• NASAS — NASA Special Publication
• PHASP — Physics and Astrophysics from Spacelab
• HCIS — Health Care Information System
• EPS — Encapsulated Postscript
• BSI — British Standards Institution
• PM — Pressurized Module
• OSSA — Office of Space Sciences and Applications
• NSI — NASA Science Internet
• ETLA — Extended Three Letter Acronym
• SERC — Science and Engineering Research Council
• AW&ST — Aviation Week & Space Technology
• SSTO — Single-Stage-to-Orbit
• ALPO — Association of Lunar and Planetary Observers
• CQGRA — Classical and Quantum Gravity
• OPF — Orbiter Processing Facility
• DEACO — Dearborn Observatory Contributions
• RFNA — Red Fuming Nitric Acid
• CDSF — Commercially Developed Space Facility
• XRD — X-Ray Diffraction
• AFSCN — Air Force Space Command network
• COKON — Commmunications of the Konkoly Observatory Hungary
• ATV — Automated Transfer Vehicle
• ANMN — Antarctic Meteorite Newsletter
• NDA — New Drug Application

• ASPRV — Astrophysics and Space Physics Reviews
• NASAC — NASA Conference Publication
• EVA — Extra-Vehicular Activity
• LOX — Liquid Oxygen
• POEM — Polar-Orbiting Earth Mission
• UL — Underwriters Laboratory
• GOES — Geostationary Operational Environmental Satellite
• LASCO — Large Angle Spectrometric Coronograph
• CDC — Centers for Disease Control
• NEOIC — Near Earth Object Information Center
• CQGRS — Classical and Quantum Gravity Supplement
• S/W — Software
• MOA — Microlensing Observations in Astrophysics
• EBCI — Eclipsing Binaries Circulars
• MSX — Midcourse Space Experiment
• VDS — Vereinigung der Sternfreunde
• ISN — International Supernovae Network
• PROE — Publications of the Royal Observatory of Edinburgh
• PHA — Physics And Astronomy
• DUROO — Durham Observatory Observations
• ANS — Astro News Service
• ASTD — Advanced Space Technology Division
• CON — Certificate Of Need
• CARA — California Association for Research in Astronomy
• EU — Expanded Universe
• VAI — Voluntary Action Indicated (Food & Drug Administration postaudit inspection classification)
• MCO — Mars Climate Orbiter
• MHW — Ministry of Health and Welfare
• RA — Right Ascension
• OBC — Onboard Computer
• EAA — Encyclopedia of Astronomy and Astrophysics
• F — Degrees Fahrenheit
• NRT — near real time
• STICA — Space Technology Industrial and Commercial Applications
• BH — Black Hole
• BPSK — binary phase shift keying
• ADEPS — Advances in Earth and Planetary Sciences
• UT — Universal Time
• AIRCO — Air et Cosmos
• ALAMO — Automated Lunar and Meteor Observatory
• STSCI — Space Telescope Science Institute
• ADIS — Astrophysics Data and Information Services
• ESOC — European Space Operations Center
• CARA — Center for Astrophysical Research in Antarctica
• SPARTAN — Shuttle Pointed Autonomous Research Tool for Astronomy
• USNO — United States Naval Observatory
• ROSA — Romanian Space Agency
• AREPS — Annual Review of Earth and Planetary Sciences
• JRASC — Journal of the Royal Astronomical Society of Canada
• APH — Astroparticle Physics

• AEXPR — Astronomy Express
• CSBN — Committee for Small-Body Nomenclature
• AUASS — Arab Union for Astronomy and Space Sciences
• SA — Solar Array
• ADCBU — Astronomical Data Center Bulletin
• AACCS — Analytical Approach to Candidate Constellation Selection
• ADC — Astronomical Data Center
• SRD — Software Requirements Document
• LSF — Line Spread Function
• RECONS — Research Consortium on Nearby Stars
• CAPS — Cassini Plasma Spectrometer
• SSBUV — shuttle solar backscatter ultraviolet (radiometer)
• GTO — Geostationary Transfer Orbit
• FIRSSE — Far Infrared Sky Survey Experiment
• IOTA — International Occultation Timing Association
• ADEC — Astrophysics Data Centers Executive Council
• CRAF — Comet Rendezvous/Asteroid Fly-by
• PASAU — Proceedings of the Astronomical Society of Australia
• PPCAS — Publication of the Pomona College Astronomical Society
• SPART — Space Research and Technology
• AAO — Anglo-Australian Observatory
• K — Kelvin (absolute temperature scale)
• CMA — Chemical Manufacturers Association
• WFF — Wallops Flight Facility
• TIFF — Tag Image File Format
• EUV — Extreme Ultraviolet Vertical
• EVN — European VLBI Network
• PAM — Payload Assist Module
• SAPS — Sub Auroral Polarization Streams
• MDI — Michelson Doppler Imager
• ASTL — Astronomy Letters
• JASS — Journal of Astronomy and Space Sciences
• TEM — Transverse Electromagnetic
• NCI — National Cancer Institute, USA
• MEPAG — Mars Exploration Program Analysis Group
• ARISTOTELES — Applications and Research Involving Space Technologies Observing the Earth's Field from Low Earth Orbiting Satellite
• LEGRI — Low Energy Gamma-Ray Imager
• SPP — Solar Physics Payload
• AMPS — Atmosphere, Magnetosphere & Plasmas in Space
• COLPL — Communications of the Lunar and Planetary Laboratory
• SBNC — Small Bodies Names Committee
• ARC — Astrophysical Research Consortium
• SPMAR — Space Markets
• MMA — Minnesota Medical Association
• HIRA — Health Industry Representatives Association
• TUV — Technische Uberwachungs-Vereine
• NIZRE — Nizamiah Observatory Reprints
• MSSS — Maui Space Surveillance Site
• MVM — Mariner Venus/Mercury
• MSSSO — Mount Stromlo and Siding Spring Observatories

• BPI — bits per inch
• SEOS — Synchronous Earth Observation Satellite
• FS — Far Side
• TAC — Time Allocation Committee
• TTA — Time to Apogee
• PDUFA — Prescription Drug User Fee Act (1992, U.S.)
• COVVO — Contributions of the Van Vleck Observatory
• CRPL — Cosmic Ray Physics Laboratory
• OPAG — Outer Planets Assessment Group
• UT — University of Texas
• ANHAR — Annals of Harvard College Observatory
• IRAS — Infrared Astronomy Satellite
• WISE — Wide-Field Infrared Survey Explorer
• OVS — Observation of Variable Stars
• COROE — Communications from the Royal Observatory Edinburgh
• ALPOJ — Association of Lunar and Planetary Observers Journal
• LPO — La Palma Observatory
• SZA — Solar Zenith Angle
• TOMS — Total Ozone Mapping Spectrometer (satellite Instrument)
• Z — Zulu (Greenwich mean time)
• EBS — Electron Bombarded Silicon
• IDL — Interactive Data Language
• VBO — Vainu Bappu Observatory
• HST — Hubble Space Telescope
• MWOAR — Mount Wilson Observatory Annual Report
• SRB — Solid Rocket Boosters
• WEBT — Whole Earth Blazar Telescope
• MERIS — Medium Resolution Imaging Spectrometer
• SPRBU — Space Research Bulgaria
• RQQ — Radio Quiet Quasar
• CM — Command Module
• DOY — Day of Year
• ESOSR — European Southern Observatory Scientific Report
• VSOLJ — Variable Star Observers League in Japan
• BKOAS — Bulletin of Korean Astronomical Society
• MNRAS — Monthly Notices of the Royal Astronomical Society
• ESOSP — European Southern Observatory Scientific Preprints
• SAAO — South African Astronomical Observatory
• AMIA — The American Medical Informatics Association
• BASI — Bulletin of the Astronomical Society of India
• IUEDAC — IUE satellite Data Analysis Center
• ESOAR — European Southern Observatory Annual Reports
• RALPH — Reduction and Acquisition of Lunar Pulse Heights
• NAMN — North American Meteor Network
• RASC — Royal Astronomical Society of Canada
• IDTF — Independent Diagnostic Testing Facility
• KPNO — Kitt Peak National Observatory (Tucson, AZ)
• ICE — International Cometary Explorer
• DUDOR — Dudley Observatory Reports
• ANDUD — Annals of the Dudley Observatory

• NAOJ — National Astronomical Observatory of Japan
• CME — Coronal Mass Ejection (usually Sun)
• EXA — Experimental Astronomy
• MELOO — Melbourne Observatory Observations
• PASA — Publications of the Astronomical Society of Australia
• PRCO — Publications of the Riverview College Observatory
• VAB — Vertical Assembly Building
• CV — Cataclysmic Variable
• JBAA — Journal of the British Astronomical Association
• SGF — SpaceGuard Foundation
• JHIT — Joint Healthcare Information Technology Alliance
• AZ — Azimuth
• ONRAS — Occasional Notes of the Royal Astronomical Society
• JAHH — Journal of Astronomical History and Heritage
• TCPA — Time for Closest Point of Approach
• CIBAA — Circular of the British Astronomical Association
• PA — Popular Astronomy
• COMAP — Comments on Astrophysics
• JDSO — Journal of Double Star Observations
• POMIC — Publications of Michigan Observatory
• MDD — Medical Device Directive
• K — Kilogram
• RAZEL — Range, Azimuth and Elevation
• KCAO — Kumamoto Civil Astronomical Observatory
• ANLUN — Annals of the Observatory of Lund
• FSK — Frequency Shift Keying
• JCAP — Journal of Cosmology and Astro-Particle Physics
• TDRSS — Tracking and Data Relay Satellite System
• NRAO — National Radio Astronomy Observatory (Greenbank, WV)
• JBAS — Journal of the British Astronomical Society
• SDAC — Solar Data Analysis Center
• AP — Array Processor
• MOC — Mars Observer Camera
• M&R — Maintenance and Refurbishment
• CPAF — Cost Plus Award Fee (Type of Contract)
• PLICO — Publications of Lick Observatory
• ASP — Astronomical Society of the Pacific
• APHA — American Pharmaceutical Association
• VDU — Video Display Unit
• MSFN — Manned Space Flight Network
• PASJ — Publications of the Astronomical Society of Japan
• SETI — Search for Extraterrestrial Intelligence
• PMUNO — Publications of the Munich Observatory
• ASMT — American Society for Medical Technology
• SDI — Strategic Defense Initiative
• LPI — Lunar and Planetary Institute
• COBOS — Contributions from the Bosscha Observervatory
• RCS — Reaction Control System/Subsystem
• E&S — Earth and Space
• ADFRF — Ames-Dryden Flight Research Facility

• OTV — Orbital Transfer Vehicle
• TEP — Transits of Extrasolar Planets
• NCC — Network Control Center (GSFC)
• BBXRT — Broadband XRay Telescope
• PVO — Pioneer Venus Orbiter
• LCROSS — Lunar CRater Observation and Sensing Satellite
• OV — Orbital Vehicle
• Z — Zenith
• TIE — Telescopes in Education
• ANLOW — Annals of the Lowell Observatory
• COSRE — Cosmic Research
• ADVAMED — Advanced Medical Technology Association
• RGO — Royal Greenwich Observatory
• FCPH — Fundamentals of Cosmic Physics
• BAAS — Bulletin of the American Astronomical Society
• ISTEC — International Small Telescope Cooperative
• ID — IDentifier
• SR — Special Relativity
• IMBH — Intermediate-Mass Black Hole
• APOD — Astronomy Picture of the Day
• APM — Attached Pressurized Module (a.k.a. Columbus)
• ITU — Infrared Telescope Unit
• SO/SI — space operations and scientific investigation
• BIO — Biotechnology Industry Organization
• ARCHS — Archaeoastronomy Supplement
• LLO — Low Lunar Orbit
• CPFF — Cost Plus Fixed-Fee
• AOA — Abort Once Around (shuttle Abort Plan)
• PDREO — Publications of the Dresden Observatory
• NCAR — National Center for Atmospheric Research (US)
• ANCAP — Annals of the Cape Observatory
• SIMCAT — simulate observations using space catalog
• NASO — North American Space Operations
• ANDEA — Annales of the Dearborn Observatory
• SDIO — Strategic Defense Initiative Organization
• NESSI — Near Earth Space Surveillance Initiative
• CIT — California Institute of Technology (Pasadena, CA)
• MPL — Mars Polar Lander
• DSSN — Delta Scuti Star Newsletter
• ISY — International Space Year (1992)
• CBER — Center for Biologics Evaluation and Research
• GLP — Good Laboratory Practice
• VVORE — Van Vleck Observatory Reprints
• FWHM — Full Width at Half Maximum
• NAS — Norsk Astronomisk Selskap
• LR — Long Radius
• ANOLL — Annals of the Private Observatory of Lucien Libert
• ESABU — European Space Agency Bulletin
• PAAS — Publications of the American Astronomical Society
• PGLO — Publications of the Goethe Link Observatory

• PNAOJ — Publications of the National Astronomical Observatory of Japan
• SLC — Space Launch Complex
• COLIC — Contributions of Lick Observatory
• COARM — Contributions from the Armagh Observatory
• JD — Julian Date
• LBLRR — LBL Research Review
• COBRN — Contributions of the Public Observatory and Planetarium in Brno
• ECRI — Emergency Care Research Institute
• IQSY — International Quiet Sun Year
• IRAJS — Irish Astronomical Journal Supplement
• AUJPA — Australian Journal of Physics Astrophysical Supplement
• CHA&A — Chinese Astronomy and Astrophysics
• CMS — Correctional Medical Services
• ARA&A — Annual Review of Astronomy and Astrophysics
• IRAJ — Irish Astronomical Journal
• IUEEN — IUE ESA Newsletter
• NMI — Nautical Mile
• LSR — Local Standard of Rest
• CIUO — Circular of the Union Observatory Johannesburg
• JIMO — Journal of the International Meteor Organization
• CNB — Cosmic Neutrino Background
• ASSU — Annual Scientific Supplement to Urania
• LBT — Large Binocular Telescope
• OAP — Odessa Astronomical Publications
• IPC — Interprocess Communication
• ONR — Office of Naval Research (U.S.)
• HRI — High Resolution Imager
• AREP — Astronomy Reports
• PDR — Photo Dissociation Region
• MEDGV — Germany's Medical Equipment Safety Law
• GLOMR — Global Low-Orbiting Message Relay
• ESIS — ESA Space Information Systems
• COSSE — Cosmic Search Summer
• MHD — Magnetohydrodynamic
• CODDO — Communications from the David Dunlap Observatory
• NRAOR — National Radio Astronomy Observatory Reprints
• PN — Planetary Nebula
• ESPI — European Space Policy Institute
• ELT — Extremely Large Telescope
• COASP — Comments on Astrophysics and Space Physics
• PLAST — Planetary Astronomy
• COSKA — Contributions of the Astronomical Observatory Skalnate Pleso
• JAD — Journal of Astronomical Data
• NASPY — North American Society of Electro Physiology and Pacing
• ACRV — Assured Crew Return Vehicle
• FAHS — Federation of American Health Systems
• MECO — Magnetospheric Eternally Collapsing Object
• ECS — Environmental Control System (Subsystem)
• PMANO — Publications of the Manila Observatory
• SRON — Space Research Organization of the Netherlands

• PVVO — Publications of the Van Vleck Observatory
• JBRE — Jodrell Bank Reprints
• FTL — Faster Than Light
• AACC — American Association for Clinical Chemists
• MMT — Multiple Mirror Telescope
• JHAS — Journal for the History of Astronomy Supplement
• EEXSC — Earth and Extraterrestrial Sciences
• CIRCE — Confusion-limited Infrared Cosmology Explorer
• GPC — General Purpose Computer
• MDS — Medium Deep Survey
• BCRAO — Bulletin Crimean Astrophysical Observatory
• NIR — Near Infrared
• PBEIO — Publications of the Beijing Astronomical Observatory
• LF — Luminosity Function
• JKAS — Journal of Korean Astronomical Society
• UVS — Ultraviolet Spectrometer
• TPS — Thermal Protection System
• UPPAN — Uppsala Astronomical Observatory Annals
• CRARE — Cracow Observatory Reprints
• CEA — Center for EUV Astrophysics
• CAMRE — Cambridge Observatories Reprints
• PDDO — Publications of the David Dunlap Observatory
• FDLI — Food and Drug Law Institute
• ISEE — International Sun-Earth Explorer
• NEWAR — New Astronomy Review
• JASAC — Japan Astronomical Study Association Circulars
• MELAR — Melbourne Observatory Annual Report
• DSMA — Division of Small Manufacturers Assistance
• OCC — Operations control center
• JASV — Journal of the Astronomical Society of Victoria Melbourne
• IUENN — IUE NASA Newsletter
• PI — Principle Investigator
• WHT — William Herschel Telescope
• MCD — Minimum Cost Design
• JAAME — Japanese Association for the Advancement of Medical Equipment
• CHPA — Consumer Healthcare Products Association
• CLMA — Clinical Laboratory Management Association
• APJL — Astrophysical Journal Letters
• CCR — Cost-Charge Ratio
• PSLV — Polar Satellite Launch Vehicle (Indian Space Research Organization; India)
• LICOB — Lick Observatory Bulletin
• SIM — Space Interferometry Mission
• HIAA — Health Insurance Association of America
• FDR — Final Design Review
• EOS — Earth Observing System (U.S.)
• RSNA — The Radiological Society of North America, Inc.
• ICH — International Conference of Harmonization
• STO — Solar Terrestrial Observatory
• MMH — Monomethyl Hydrazine
• IU — Interface Unit

• ATLAS — ACTIVITIES Atmospheric Laboratory for Applications and Science
• MEDEC — Medical Devices Canada
• IAPM — International Association of Medical Prosthesis Manufacturers
• S/N — Signal-to-Noise ratio
• LRSP — Living Reviews in Solar Physics
• HRSA — U.S. Health Resources and Services Administration
• JBAN — Jodrell Bank Annals
• PERCO — Perkins Observatory Contributions
• OEJV — Open European Journal on Variable Stars
• NAHIT — National Alliance for Health Information Technology
• CD-ROM — compact disc-read only memory
• PCARS — Publication of COMU Astrophysics Research Center
• RA — Research Assistant
• PCINO — Publications of the Cincinnati Observatory
• PCA — Proportional Counter Array
• COPER — Contributions of Perkins Observatory
• RAA — Relative Azimuth Angle
• ASAIO — American Society for Artificial Internal Organs
• HIDA — Health Industry Distributors Association
• RSO — Resident Space Object
• AO — announcement of opportunity
• QSR — Quality System Regulation
• MASSMEDIC — Massachusetts Medical Device Industry Council
• PPN — Proto-Planetary Nebula
• DRG — Diagnosis-Related Groups
• SUNY — State Universityrsity of New York
• HIS — Health Information Systems
• CFC — Chloroflourocarbon
• INDA — Investigational New Drug Application
• MVI — Microgravity Vestibular Investigation
• ASCRS — American Society of Cataract and Refractive Surgery's
• AFGWC — Air Force Global Weather Central (U.S.)
• ARKOD — Annual Report of the Kodaikanal Observatory
• PSK — Phase Shift Key
• JAPA — Journal of Astrophysics and Astronomy
• ESTP — European Space Technology Platform
• SPOT — Satellite Pour l'Observation de la Terre (France)
• USPHS — United States Public Health Service
• DSP — Defense Support Program
• ATDRS — Advanced Tracking and Data Relay Satellite
• WIMP — Weakly Interacting Massive Particle
• CEC — Commission of the European Communities ;
• OASH — Office of the Assistant Secretary for Health
• MDMA — Medical Device Manufacturers Association
• FIR — Far Infrared
• COROT — Convection Rotation and Planetary Transits
• CFF — Columbus Free Flyer
• TOKRE — Tokyo Astronomical Observatory Reprints
• OPM — Outer Planet Mission
• D — Directive

• JHA — Journal for the History of Astronomy
• S/C — Spacecraft
• A&AS — Astronomy and Astrophysics Supplement Series
• UARS — Upper Atmosphere Research Satellite (NASA)
• CDS — Coronal Diagnostic Spectrometer
• TIROS — Television InfraRed Observation Satellite (POES)
• AAT — Anglo Australian Telescope
• RAE — Radio Astronomy Explorer
• SOT — Solar Optical Telescope
• RA — Regulatory Affairs
• LAC — Lockheed Aircraft Corporation
• RGOO — Royal Greenwich Observatory Observations
• CGRO — Compton Gamma-Ray Observatory
• LAN — Local Apparent Noon
• HFMA — Healthcare Financial Management Association
• PSPRO — Publications of the Sproul Observatory
• CFIT — Controlled Flight into Terrain
• UCLA — Harbor-University of California Los Angeles
• LM&SS — Lunar Mapping and Scientific Survey
• APC — Ambulatory Payment Class
• ND — Neutral Density
• LOD — Length of Day
• PEPI — Physics of the Earth and Planetary Interiors
• CIRRIS — Cryogenic Infrared Radiance Instrument for Shuttle
• G — Gravity
• SFR — Star Formation Rate
• EGRET — Energetic Gamma Ray Explorer Telescope
• ECCLS — European Committee on Clinical Laboratory Standards
• IPEM — Institute of Physics and Engineering in Medicine
• CCAS — Cape Canaveral Air Station
• MOPH — Ministry of Public Health
• ANSAO — Annals of the Astrophysical Observatory of the Smithsonian Institution
• RNAOJ — Report of the National Astronomical Observatory of Japan
• WR — Western Range
• OSTA — Office of Space and Terrestrial Applications (US NASA; now OAST)
• PDR — Physician’s Desk Reference
• SEB — Systems Engineering Branch
• MOS — Metal Oxide Semiconductor (FET Devices)
• STERE — Steward Observatory Reprints
• MAFI — Medical Alert Foundation International
• SERAJ — Serbian Astronomical Journal
• WRORE — Wroclaw Astronomical Observatory Reprints
• LAWOB — Laws Observatory Bulletin
• SPAC — State Pharmaceutical Administration of China
• PMT — Photo Multiplier Tube
• EFPIA — European Federation of Pharmaceutical Industries and Associations
• DCT — Discrete Cosine Transformer
• QSO — Quasar|Quasi-Stellar Object
• NCSC — National Council of Senior Citizens
• NIGMS — National Institute Of General Medical Sciences (NIH)

• MTI — Minnesota Technology Inc
• ATM — Apollo Telescope Mount (on Skylab)
• RAD — Radiant
• LRO — Lunar Reconnaissance Orbiter
• SPED — Space Education
• PV — photovoltaic (solar)
• CNSA — China National Space Administration
• EPIC — Earth Polychromatic Imaging Camera
• WD — White Dwarf
• ICD-9-CM — International Classification of Diseases, 9th Edition
• GOES — Geostationary Orbiting Environmental Satellite
• PROPAC — Prospective Payment Assessment Commission
• IGM — Intergalactic Medium
• MS — Master Schedule
• NRO — U.S. National Reconnaissance Office
• VO — Virtual Observatory
• UGC — Uppsala General Catalog
• DOAMS — distant-object attitude-measuring system
• QBO — Quasi-biennial Oscillation (atm.)
• POMIN — Publications of the Astronomical Observatory University of Minnesota
• CENELEC — European Committee for Electromechanical Standardisation
• HSQB — Health Standard and Quality Bureau
• MJD — Modified Julian Date
• TPF — Terrestrial Planet Finder
• LHA — Local Hour Angle
• NEEDS — NASA end-to-end data system
• POSS — Palomar Observatory Sky Survey
• MM — Memory Module
• ETC — Estimated Time to Completion
• LASS — large-amplitude space simulator
• PAMELA — Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics
• AMANDA — Antarctic Muon And Neutrino Detector Array
• VHT — Very High Temperature
• OHTA — Office of Health Technology Assessment
• SMDA — Safe Medical Devices Act (1990)
• SPIRE — Spectral Infrared Rocket Experiment
• HIMSS — Healthcare Information and Management Systems Society
• MOTIF — Maui Optical Tracking and Identification Facility
• LAMO — low altitude mapping orbit
• MEI — Medical Economic Index
• GPE — Gravitational Potential Energy
• JCAHO — Joint Committee on the Accreditation of Healthcare Organizations
• MMKMO — Memoirs Of The Kakioka Magnetic Observatory
• HIBCC — Health Industry Business Communications Council
• JCCT — Joint Commission on Commerce and Trade (US-China)
• CST — Constant-Separation Traversing
• SDSS — Sloan Digital Sky Survey
• MRSR — Mars Rover Sample Return
• NAG — Numerical Algorithms Group Inc.
• MIL-STD — Military Standard

• MIAA — Medical Industry Association of Australia
• PCS — Pointing Control System
• PDA — Parenteral Drug Association
• BATSE — Burst and Transient Source Experiment
• CL — Command Language
• MEV — Mars Excursion Vehicle
• TMT — Thirty-Meter Telescope
• SYDOP — Sydney Observatory Papers
• ISTAHC — International Society of Technology Assessment in Health Care
• TV — Thermal Vacuum
• JBIS — Journal of the British Interplanetary Society
• VTVL — Vertical Takeoff Vertical Landing
• JETRO — Japan External Trade Organization
• ANTOK — Annals of the Tokyo Astronomical Observatory
• JAXA — Japan Aerospace Exploration System
• CBI — Confederation of British Industries
• USNOC — United States Naval Observatory Circulars
• HUT — Hopkins Ultraviolet Telescope
• IES — Institute of Environmental Sciences
• JET-X — Joint European Telescope for X-ray astronomy
• SPRRE — Sproul Observatory Reprints
• EUDRA — European Drug Regulatory Authorities Network
• GRC — Glenn Research Center
• AAOPR — Anglo-Australian Observatory Epping Preprint
• AMDM — Association of Medical Diagnostics Manufacturers
• QSIT — Quality System Inspection Technique
• ISSRT — Israel Space Research and Technology Information Bulletin
• EGG — Evaporating Gaseous Globule
• LAT — Large Area Telescope
• ORA — FDA's Office of Regulatory Affairs
• GML — Galactic Modeling Language
• SHA — Sidereal Hour Angle
• SNAP — Supernova / Acceleration Probe
• AIPS — Astronomical Image Processing System
• ASCP — American Society for Clinical Pharmacology and Therapeutics
• SF — Square Foot
• LLC — Limited Liability Partnership
• UPPOR — Uppsala Astronomical Observatory Reports
• FIPS — Fast Imaging Plasma Spectrometer
• SPIRIT — Spatial Infrared Telescope
• ETR — Eastern Test Range (ESME Preferred)
• BEV — Billion Electron Volts
• SNR — Super Nova Remnant
• SST — Spectroscopic Survey Telescope
• DSSC — Deep Space Station Complex
• IDT — Investigation Definition Team
• ODF — Orbit Determination Facility
• PHA — Potentially Hazardous Asteroid
• NAMES — National Association of Medical Equipment Services
• LLAGN — Low-Luminosity Active Galactic Nucleus

• MITTS — Mobile Igor Tracking Telescope System
• SOLSTICE — Solar Stellar Irradiance Comparison Experiment
• IFA — Institute for Astronomy
• MTPPI — Medical Technology and Practice Patterns Institute
• ISBRV — International Space Business Review
• COPRE — Copenhagen University Observatory Reprints
• CSG — Council of State Governments
• OG — Original Gravity
• DEM — Differential Emission Measure
• LAPSS — Large-Area Pulse Solar Simulator
• TDRS — Tracking and Data Relay Satellites
• TIMED — Thermosphere Ionosphere Mesosphere Energetics and Dynamics
• SPIE — The Society of Photo-optical Instrumentation Engineers
• GEO — Geosynchronous Earth Orbit
• RTV — Room Temperature Vulcanizer
• WFC — Wide-Field Camera
• PSC — Point Source Catalog
• SSRMS — Space Station Remote Manipulator System
• CYSF — Cape York Space Facility
• MOSS — Market-Oriented Sector Selective
• JFMDA — Japan Federation of Medical Device Associations
• NERVA — Nuclear Engine for Rocket Vehicle Application
• GRO — Gamma Ray Observatory (NASA)
• PVASO — Publications of the Vassar College Observatory
• OARE — Orbital Acceleration Research Experiment
• IMDA — Independent Medical Distributors Association
• STOMS — Space Telescope Observatory Management System
• SEF — Space Environmental Facility
• SO — Space Operations
• LH — Liquid Hydrogen
• LAMMR — large-antenna multichannel microwave radiometer
• TOKAB — Tokyo Astronomical Bulletin
• LIGO — Laser Interferometer Gravitational-Wave Observatory
• MDDI — Medical Device and Diagnostics Industry
• TTP — Time to Perigee
• EFCS — Earth-fixed coordinate system
• FK4 — Fundamental Katalog 4
• EUV — Extreme Ultra-Violet 2
• NUSTAR — Nuclear Spectroscopic Telescope Array
• AGPS — Assisted Global Positioning System
• INTEGRAL — International Gamma-Ray Astrophysics Laboratory
• OMS — orbital maneuvering system
• ROAN — Royal Observatory Annals
• NLN — National League for Nursing
• CATS — Cheap Access to Space
• MTC — Man-Tended Capability
• CHI — California Healthcare Institute
• PPRC — Physician Payment Review Commission
• MTF — Modulation transfer function.
• SUSIM — Solar Ultraviolet Spectral Irradiance Monitor

• STACC — Standard Telemetry And Communications Component
• HIB — Health Insurance Bureau (Japan)
• PYUNO — Publications of the Yunnan Observatory
• SOHO — SOlar and Heliospheric Observatory
• VAB — Vehicle Assembly Building
• UW — University of Wisconsin
• PRO — Professional Review Organization
• NSTL — National Space Technology Laboratories (NASA)
• FDAMA — FDA Modernization Act of 1997
• ASH — American Society of Hematology's
• SPICE — Survey Probe Infrared Celestial Experiment
• MDA — Medical Device Amendments
• GRS — Gamma Ray Spectrometer
• CU — Calibration Unit
• SSS — Spinning Sun Sensor
• DH — Data Handling
• GHRS — Goddard High Resolution Spectrograph
• HPB — Health Protection Board (Canada)
• OAO — Orbital Astronomical Observatory
• AR — Active Region
• SANS — Stellar Autonomous Navigation System
• DEED — Minnesota Department of Employment and Economic Development
• PLANEMO — Planetary Mass Object
• STSKY — Star Sky
• SSDF — Space Science Development Facility
• S&T — Sky & Telescope
• DIN — Deutsches Institut fur Normung
• RVGSP — Reviews of Geophysics and Space Physics
• RAPS — Regulatory Affairs Professional Society
• BHB — Blue Horizontal Branch
• TNO — Trans-Neptunian Object
• JGR — Journal of Geophysical Research
• MPBU — Minor Planet Bulletin
• DADS — Data Archive and Distribution System
• KBO — Kuiper Belt Object
• SPPOL — Space Policy
• PYERO — Publications of the Yerkes Observatory
• WAXS — Wide Angle X-ray Scattering
• AVSOM — American Association of Variable Stars Observers Monographs
• FOC — Faint Object Camera
• NHIB — National Health Insurance Bureau (Taiwan)
• MACHO — Massive Compact Halo Object
• UHMW — Ultra High Molecular Weight
• MPEC — Minor Planet Electronic Circular
• VLA — Very Large Array
• MST — Mean Solar Time
• DNA — Digital Network Architecture
• LAIRT — Large-Aperture Infrared Telescope
• WILOO — Williamstown Observatory Observations
• PT — Pass-Through

• SM — Secondary Mirror
• SSPF — Space Station Processing Facility
• ERF — Energy Rejection Filter
• PMC — Permanently Manned Capability (of Space Station)
• PWASO — Publications of the Washburn Observatory
• ISM — Interstellar Medium
• CBR — Cosmic Background Radiation
• RTK — Right-To-Know
• COWAT — Contributions of the University of Waterloo Observatory
• M&P — Moon and Planets
• LS/ST — Light Shield/Star Tracker
• SOPH — Solar Physics
• IOLM — International Organization of Legal Metrology
• ASIM — American Society of International Medicine
• CCR — Configuration Change Request
• BBT — Big Bang Theory
• PACS — Physics and Astronomy Classification Schemex
• NEAR — Near-Earth Asteroid Rendezvous
• MDR — Medical Device Register
• PAB — Pharmaceutical Affairs Bureau (Japan)
• HDIF — Health Care Data Interchange Format
• FRC — Flight Research Center
• IGY — International Geophysical Year (1 July 1957 - 31 December 1958)
• PPQA — Pre-Product Quality Assurance
• GLOB — Globular
• EDMA — European Diagnostics Manufacturer's Association
• HTML — Hyptertext Markup Language
• E — Earth
• PC — Planetary Camera
• IOA — Institute Of Astronomy (Cambridge)
• SRAG — Space Radiation Analysis Group
• NMDC — National Medical Device Coalition
• STMAP — Studies in Mathematical Physics
• MVEMJSUNP — Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto
• UNOOSA — United Nations Office for Outer Space Affairs
• WMAP — Wilkinson Microwave Anisotropy Probe
• JRASN — Journal of the Royal Astronomical Society of New Zealand
• ER — Eastern Range
• QE — Quantum Efficiency
• MEDMARC — Medical Device Material Assurance and Reinsurance Company, Ltd.
• AIMBE — American Insitute for Medical and Biological Engineering
• SPAN — Space Physics Analysis Network
• SM — Standard Model
• SSI — Solid-State Imager
• PERI — Pharmaceutical Education & Research Institute
• XUV — Extreme Ultraviolet
• AAONW — Anglo-Australian Observatory Epping Newsletter
• SDO — Scattered Disk Object
• PISCO — Parallel Imager for Southern Cosmological Observations
• VLBI — Very Long Baseline Interferometry

• APINV — Astrophysical Investigations
• TECRV — Technology Review
• RGOB — Royal Greenwich Observatory Bulletin
• HGA — High Gain Antennae
• EMDM — European Medical Device Manufacturer
• SAA — South Atlantic Anomaly
• DCR — Document Change Request
• STATS — star tracker alignment test set
• IPA — Institute for Polyacryclate Sciences
• ODC — Other Direct Cost
• OWL — Overwhelmingly Large Telescope
• CIAO — Chandra Interactive Analysis of Observations
• DMF — Data Management Facility
• ATEL — Astronomer's Telegram
• MDC — Major Diagnostics Category
• BCS — Bragg Crystal Spectrometer
• CM — Center of Mass
• AU — Alternate Universe
• PLR — Planetary Report
• SIRTF — Space Infrared Telescope Facility
• MOTIE — Ministry of Trade, Industry, and Energy (Korea)
• HAACP — Hazard Analysis Critical Control Points Program
• ET — External Tank
• RGB — Red Giant Branch
• USAFA — United States Air Force Academy
• M — Messier
• ASC — Agence Spatiale Canadienne
• MEDSUN — Medical Device Surveillance Network
• SCP — Supernova Cosmology Project
• PMA — Premarket Application
• AGN — Active Galaxy Nucleus
• EBTC — Edison BioTechnology Center
• DDORE — David Dunlap Observatory Richmond Hill Reprints
• NAHC — National Association of Home Care
• ESAST — European Space Agency Scientific Technical Review
• TR — Tape Recorder
• BD — Bonner Durchmusterung
• QTG — Quantum Theory of Gravity
• HCPCS — Health Care Common Procedure Coding System
• ASSA — Astronomical Society of South Africa
• PST — Personal Solar Telescope
• BAVSO — Bulletin of the American Association of Variable Stars Observers
• DWE — Doppler Wind Experiment
• MPC — Minor Planet Circulars
• COCIR — Coordination Committee of the Radiological and Electromedical Industries
• HEDIS — Healthplan Employee Data and Information
• IFCC — International Federation of Clinical Chemists
• UADE — Unanticipated Adverse Device Effects
• MNBIO — Minnesota Biotechnology
• SEM — space environment monitoring

• TGF — Terrestrial Gamma-Ray Flash
• IPNS — Intense Pulsed Neutron Source
• USNOR — United States Naval Observatory Reports
• TEA — Torque Equilibrium Attitude
• TEC — Thermal Electric Cooler
• POL — Physician's Office Laboratory
• B/W — Black and White
• RSU — Rate Sensor Unit
• SG — Shattered Galaxy (game)
• SIRTF — Shuttle InfraRed Telescope Facility
• AASPP — Astrononomy and Astrophysics Series
• MODIS — Moderate Resolution Imaging Spectroradiometer
• MPI — Minnesota Project Innovation
• FPA — Floating Point Accelerator
• KODOB — Kodaikanal Observatory Bulletins
• SIP — Sickness Index Profile
• PBRN — Publications of the Astronomical Institute of the University of Borneo
• TOCC — TDRS Operations Control Center
• 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)
• MACRO — Monopole, Astrophysics and Cosmic Ray Observatory
• CEAB — Central European Astrophysical Bulletin
• ICCD — Intensified Charge-Coupled Device
• SPD — Solar Physics Division
• CEV — Crew Exploration Vehicle
• NACA — National Advisory Committee on Aeronautics
• SPWD — Space World
• MMASI — Memoirs of the Astronomical Society of India
• DG — Data Group
• AVSOQ — American Association of Variable Stars Observers Quarterly Reports
• HOTOL — Horizontal Takeoff and Landing Launcher
• ODE — Office of Device Evaluation
• THAST — Theoretical Astrophysics
• JHU — The Johns Hopkins University (Baltimore, MD)
• DSS — Digitized Sky Survey
• PAB — Publications of The Astrophysics Branch Ottawa
• STHCG — Studies in High Energy Physics Cosmology and Gravitation
• ST-ECF — Space Telescope - European Coordinating Facility
• POVRO — Publications of the Owens Valley Observatory
• ROE — Royal Observatory, Edinburgh
• EUCOMED — European Confederation of Medical Suppliers Associations
• DPS — Division for Planetary Sciences
• SSGSR — Springer Verlag Springer Series on Group Geophysics Space Research
• VDC — Volts, Direct Current
• JCMT — James Clerk Maxwell Telescope
• TOY — Time of Year
• ADSAC — Advanced Series in Astrophysics and Cosmology
• CCLRC — Central Laboratory of the Research Councils
• XMM — X-ray Multi Mirror
• AVSOA — American Association of Variable Stars Observers Abstracts
• OHP — Observatoire de Haute-Provence

• PBPK — Physiologically-Based Pharmacokinetic
• XRT — X-Ray Telescope
• PKAS — Publication of the Korean Astronomical Society
• MPS — Mission Planning System
• STEREO — Solar Terrestrial Relations Observatory
• UDL — Unique Data Log
• IDA — International Dark-Sky Association, Inc.
• MA — Medical Alley
• SAC — Solar Array Carrier
• ANSHO — Shanghai Observatory Annals
• PEB — Performance Evaluation Board
• LCG — light curve generator
• MMRAS — Memoirs of the Royal Astronomical Society
• ATC — Absolute Time Command
• SGR — Soft Gamma Repeater
• WSMR — White Sands Missile Range (whiz-murr)
• CTB — Cargo Transfer Bag
• PVSS — Publications of Variable Star Section
• LPV — Long Period Variable
• MBBNET — Minnesota Biomedical Business Network
• ESS — Engineering Support System
• ISO — Imaging Spectrometic Observatory
• LVPS — Low Voltage Power Supply
• SNR — SuperNova Remnant
• ADU — Astronomical Distance Unit
• B/L — Baseline
• VLT — Very Large Telescope
• ADASS — Astronomical Data Analysis Software and Systems
• LDEF — Long Duration Exposure Facility (for Spacecraft Material Testing)
• WR — Wolf-Rayet Star
• MMIC — Medical Manufacturers' Information Council
• MVCA — Minnesota Venture Capital Association
• SST — Space Surveillance and Tracking
• APPLE — Ariane Passenger Payload Experiment
• TAI — International Atomic Time
• GG — Gravity Gradient
• MMBAA — Memoirs of the British Astronomical Association
• SIMBAD — Set of Identifications, Measurements, and Bibliography for Astronomical Data
• LRO — Large Radio Observatory
• AGILE — Astro-rivelatore Gamma a Immagini Leggero
• DSNPR — Deep Space Network Progress Report
• MMAAR — Maria Mitchell Association Annual Report
• ASTRA — Astrophysics and Space Sciences Transactions
• SAC — Saguaro Astronomy Club
• NOCC — Network Operations Control Center (GSFC)
• PDAO — Publications of the Dominion Astrophysical Observatory
• SI — Science Instrument
• HRMS — High Resolution Microwave Survey (SETI, Project Phoenix)
• CAPMI — Royal Observatory Cape Mimeogram
• LNSP — Lecture Notes and Supplements in Physics

• TMA — Tycho Magnetic Anomaly
• MV — Apparent Visual Magnitude
• ROUS — Rodents Of Unusual Size
• PFAO — Publications of the Flower Astronomical Observatory
• OGSE — Optical Ground Support Equipment
• NR — Non-Relativistic
• EGRET — Energetic Gamma Ray Experiment Telescope
• FQR — Flight Qualification Review
• PAN-STARRS — Panoramic Survey Telescope and Rapid Response System
• SKA — Square Kilometre Array
• DOC — Data Operations Center
• ZPF — Zero-Point-Fluctuation
• RAPS — radiologists, anesthesiologists, and pathologists
• ODB — Operations Data Base
• OFAD — Optical Field Angle Distortion
• MDR — Medical Device Reports
• TCE — Thermal Control Electronics
• LDEO — Lamont-Doherty Earth Observatory
• PCOOO — Publications of the Cook Observatory
• POHEL — Publications of the Astronomical Observatory Helsinki
• HZ — Habitable Zone
• D/A — Digital-to-Analog
• CD — Cordoba Durchmusterung
• BHTA — British Healthcare Trades Industry
• GAS — Getaway Special
• TMC — Taurus Molecular Cloud
• MMO — Mercury Magnetospheric Orbiter
• BIS — British Interplanetary Society
• AAAD — Amateur Astronomers Association Delhi
• CWS — Committee on World Standards
• MTSRE — Mount Stromlo Observatory Reprints
• CRISTA — Cryogenic Infrared Spectrometer Telescope For Atmosphere
• LITVC — Liquid Injection Thrust Vector Control
• SVPCS — Springer Verlag Springer Series on Physics Chemistry Space
• PDO — Publications of the Dominion Observatory Ottawa
• AEDRV — Astronomy Education Review
• PLAWO — Publications of Laws Observatory
• MACHO — Massive Astronomical Compact Halo Object
• IMO — International Meteor Organization
• VMS — Vertical Motion Simulator
• ESOB — European Southern Observatory Bulletin
• ZD — Zenith Distance
• VCS — Vernier Control System
• CAROB — Carter Observatory Wellington New Zealand Astronomical Bulletins
• LGM — Little Green Men
• BMDO — Ballistic Missile Defense Office
• AP&SS — Astrophysics and Space Science
• MPO — Mercury Planetary Orbiter
• ISTS — Institute for Space and Terrestrial Science
• CORAD — Communications from the Radcliffe Observatory Pretoria South Africa

• PA — Position Angle
• MIP — Moon Impact Probe
• ARBEI — Astrophysics Reports Publications of the Beijing Astronomical Observatory
• NM — Non-Moment
• ANLL — Annals of the Observatory of Lucien Libert
• SSP — Subsolar Point
• BANS — Bulletin of the Astronomical Institutes of the Netherlands, Supplement Series
• FRAS — fellow of the Royal Astronomical Society
• PPMTO — Publications of the Purple Mountain Observatory
• LEND — Lunar Exploration Neutron Detector
• RC — Relativistic Correction
• MSP — Millisecond Pulsar
• PSF — Point Spread Function
• GST — Ground System Test
• APL&C — Astrophysical Letters Communications
• PAIB — Publications of the Astronomy Institute of Bonn
• IPNPR — Interplanetary Network Progress Report
• RMS — Record Management System
• HEO — Highly Elliptical Orbit
• VEEGA — Venus-Earth-Earth Gravity Assist
• KP — Kitt Peak
• NEO — Near Earth Object
• PASPS — Publications of the Astronomical Society of the Pacific Supplement
• OOTU — Origin Of The Universe
• RV — Radial Velocity
• PRAST — Practical Astronomy
• TEI — The Education Initiative
• PMCCO — Publications of the Leander McCormick Observatory
• ALMA — Atacama Large Millimeter Array
• WSO — Wilcox Solar Observatory
• VAC — Volts, Alternating Current
• MTWRE — Mount Wilson and Palomar Observatory Reprints
• JWST — James Webb Space Telescope
• CEO — Corporate Europe Observatory
• IRBS — Infrared Background Sensor
• MAGIC — Major Atmospheric Gamma-ray Imaging Cherenkov Telescope
• CCA — Cambridge Contemporary Astrophysics
• HVR — Hyper-Variable Region
• VAP — Verification and Acceptance Program
• ESTEC — European Space Technology Center
• EPD — Energetic Particles Detector
• SPO — Sacramento Peak Observatory
• PAICZ — Publications of the Astronomical Institute of the Czechoslovak Academy of Sciences
• LST — Large Space Telescope
• SMM — Solar Maximum Mission
• COLON — Communications of the University of London Observatory
• ACE — Actuator Control Electronics
• KODRE — Kodaikanal Observatory Reprints
• LAMP — Lyman-Alpha Mapping Project
• MLI — Multilayer Insulation

• SL — Comet Shoemaker-Levy
• NEA — Noise Equivalent Angle
• MOWG — Mission Operations Working Group
• VPF — Vertical Processing Facility
• APL — Astrophysical Letters
• APSSS — Astrophysics and Space Science Supplement
• MO — Mars Observer
• MOND — Modified Newtonian Dynamics
• ANBOS — Annals of the Bosscha Observatory Lembang
• DES — Deep Ecliptic Survey
• VAFB — Vandenberg Air Force Base
• PBOSO — Publications of the Bosscha Observatory Lembang
• PAM-D — Payload Assist Module, Delta-class
• RASS — ROSAT All-Sky Survey
• IRFNA — Inhibited Red Fuming Nitric Acid
• SR — Spectral Recording
• MER — Mars Exploration Rover
• NEP — North Ecliptic Pole
• SAS — Space Adaptation Syndrome
• WCFZ — Worst Case Fresnel Zone
• VLBA — Very Long Baseline Array
• SST — Spitzer Space Telescope
• NED — NASA/IPAC Extragalactic Database
• AC — Astrographic Catalogue
• SMS — Science Mission Specification
• GIO — graphics input/output
• WAA — Westchester Amateur Astronomers
• POCC — Payload Operations Control Center
• HRS — High Resolution Spectrograph
• COOXF — Communications from the University Observatory Oxford
• LGRB(S) — long gamma ray burst(s)
• PISTO — Publications of the Istanbul Observatory
• DLR — Deutschen Zentrum für Luft- und Raumfahrt
• PKIRO — Publications of the Kirkwood Observatory of Indiana University
• GHA — Greenwich Hour Angle
• OMC — Orion Molecular Cloud
• TBBT — The Big Bang Theory
• MEERE — Kenneth Mees Observatory Reprints
• SMART — Small Missions for Advanced Research in Technology
• IRA — Infrared Astronomy
• RAL — Radio Astronomy Laboratory
• UBM — Unpressurized Berthing Mechanism
• CAS — Cambridge Astrophysics Series
• IWG — Interface Working Group
• AGK3 — Katalog der Astronomischen Gesellschaft 3
• MOLA — Mars Observer Laser Altimeter
• DENIS — Deep Near-Infrared Survey
• PNLF — Planetary Nebula Luminosity Function (astronomy)
• IDT — Instrument Development Team
• BDB — Big Dumb Booster

• TMP — Technical Management Plan
• MNSSA — Monthly Notes of the Astronomical Society of South Africa
• SIC — Spacecraft Identification Code
• DSO — Deep Sky Object
• PLSS — Portable Life Support System
• MFR — Manipulator Foot Restraint
• EAAA — Escambia Amateur Astronomers Association
• ANCGH — Annals of Royal Observatory, Cape of Good Hope
• SID — Sudden Ionospheric Disturbance
• STAR — Space Telescope Axial Replacement
• WKO — Well-Known Object
• UIT — Ultraviolet Imaging Telescope
• APT — Automatic Photometric Telescope
• LFT — Luyten Five-Tenths
• HB — Hot Bands
• LERC — Lewis Research Center
• VHE — Very High Energy
• OBAFGKM — Oh, Be A Fine Girl, Kiss Me
• SQPK — staggered quadrature phase shift keying
• CARRE — Carter Observatory Wellington New Zealand Reprints
• VTHL — Vertical Takeoff Horizontal Landing
• CIT — Circumstellar Imaging Telescope
• ETOL — ESA Test and Operations Language
• CSVS — Catalogue of Suspected Variable Stars
• CCDM — Catalog of Components of Double and Multiple Stars
• RICAP — Roma International Conference on Astroparticle Physics
• ITF — Intensity Transfer Function
• AVSOR — American Association of Variable Stars Observers Reports
• RTS — Relative Time Sequence
• SP — Solar Physics
• AMR — Antarctic Meteorite Research
• BALTA — Baltic Astronomy
• TT — Terrestrial Time
• SPDM — Special Purpose Dextrous Manipulator
• ECA — Earth Crossing Asteroid
• FIRST — Frontiers in Research: Space and Time
• MTSOM — Mount Stromlo Observatory Mimeographs
• OAF — Optical Alignment Facility
• COPRI — Contributions from the Princeton University Observatory
• VOIR — Venus Orbiting Imaging Radar
• PF&CO — Publications of the Flower and Cook Astronomical Observatory
• EU — Extended Universe
• STARCAT — Space Telescope Archive Catalog
• DQE — Detector Quantum Efficiency
• IAO — International Astronomy Olympiad
• CPD — Cape Photographic Durchmusterung
• LOWOB — Lowell Observatory Bulletin
• CSM — Command and Service Module
• WTR — Western Test Range
• MINISAT — Miniature Satellite

• SP — sun point
• PGOOO — Publications of the Goodsell Observatory
• OXFOO — Oxford University Observatory Observations
• ATM — Amateur Telescope Maker
• TOPS — Toward Other Planetary Systems
• CPMF — cost plus management fee
• SAOCO — Smithsonian Astrophysical Observatory - Contributions to Astrophysics
• COAST — Communications in Asteroseismology
• PASK — Publications of the Academy of Science Kasakstan
• OTHB — Over The Horizon Backscatter
• RLQ — Radio Loud Quasar
• CVZ — Continuous Viewing Zone (Hubble Space Telescope; US NASA)
• MPC — Minor Planets Circular
• TMTE — Telemetry Test Equipment
• AST — Astrometry Science Team
• MDRS — Mars Desert Research Station
• UIC — User Identification Code
• PCS — Physics and Chemistry in Space
• NSC — Navigational Star Catalog
• PDAA — Publications of the Department of Astronomy, Austin, Texas
• ISR — Instrument Science Report
• OPS — Operations Division
• RTC — Real-Time Command
• EROS — Earth Resources Observation Satellite
• AXP — Anomalous X-Ray Pulsar
• BCG — Blue Compact Galaxy
• T&E — Test and Evaluation
• SPRL — Space Physics Research Laboratory
• CRS — Cambridge Reference Sequence
• HAO — High Altitude Observatory (NCAR)
• MICRE — University of Michigan Observatory Reprints
• AIT — Assembly, Integration, and Testing
• NG — Newsgroup
• SOHO — Solar Heliospheric Observatory
• BWI — Baltimore-Washington International Airport, between Baltimore, Maryland and Washington, DC, United States
• MPF — Mars PathFinder
• FAME — Full-sky Astrometric Mapping Explorer
• MS — Mission Schedule
• KTB — Cretaceous-Tertiary Boundary
• SAT — Synthetic Aperture Telescope
• EBE — Extraterrestrial Biological Entity
• GDS — Great Dark Spot
• CDCA — Centre de Depoiullement des Cliches Astronimiques
• HLV — Heavy Lift Vehicle
• CCD — Color-Color Diagram
• BRITE — Bright-Star Target Explorer
• NEAF — North East Astronomy Forum
• MTR — Mean Time to Restore
• FDI — failure detection and isolation
• CM/QA — Configuration Management/Quality Assurance

• FGE — Fine Guidance Electronics
• DDTE — Design, Development, Test, and Evaluation
• FACC — Ford Aerospace Communications Corporation
• OLT — Observatory Level Test
• CSM — Circumstellar Material
• ASTQ — Astronomy Quarterly
• ABBA — ADC Backend For Bolometer Array
• SMA — Secondary Mirror Assembly
• A — Angstrom unit
• WCS — World Coordinate System
• CCL — Closed Conference Loop
• EU — Engineering Unit
• SPP — Subset Preprocessor
• LUT — Lookup Table
• PAD — Pulse Amplitude Discriminator
• SLAP — Space Link Access Protocol
• EHB — Extreme Horizontal Branch
• MONGO — Interactive graphics software package
• FAST — Fast Auroral Snapshot Explorer
• CTO — Color Temperature Orange
• ODAS — OCA (Observatoire de la Côte d'Azur) - DLR (Deutschen Zentrum für Luft- und Raumfahrt) Asteroid Survey
• HRA — High Resolution Apodizer
• MTWAR — Mount Wilson and Palomar Observatory Annual Report
• LBVS — Luminous blue variable
• RM — Retrieval Mode
• MSOCC — Multisatellite Operations Control Center
• DQF — Data Quality File
• AEA — Atomic Energy Agency
• NSL — Northrop Space Laboratory
• NSSCC — NORAD Space Surveillance Computation Center
• CSO — Caltech Submillimeter Observatory
• AOR — Astronomical Observation Request
• AGN — Active Galactic Nucleus
• A/D — Analog to Digital (conversion)
• ZHR — Zenith Hourly Rate
• FSM — First Servicing Mission
• SB — Spectroscopic Binary
• LST — Local Sidereal Time
• GVI — Global Village Idiot
• SETI — Search for Extra Terrestial Intelligence
• DISR — Descent Imager/Spectral Radiometer
• IPPPSSOOT — file naming convention for HST data sets
• PWM — pulse width modulated
• TAR — Test Authorization Request
• SIA — Solar Inertial Attitude
• TAG — Two-Axis Gimbal
• CSPN — Central Star of Planetary Nebula
• SCSP — Science and Culture Series Physics
• SARA — Satellite pour Astronomie Radio Amateur
• PDA — Photon Detector Assembly

• MCSA — Mir Cooperative Solar Array
• SUMER — Solar Ultraviolet Measurements of Emitted Radiation
• NGS — National Geographic Society
• SXT — Soft X-Ray Telescope
• CAI — Calcium Aluminum-rich Inclusion
• SXR — Soft X-Ray
• QPOE — Quick Position Oriented Event
• GSPC — Guide Star Photometry Catalog
• AAA — Amateur Astronomers Association
• ACV — Alpha Canes Venatici
• ABB — After the Big Bang
• ZAP — Z Axis Precession
• LBN — Lynds Bright Nebula
• IDT — Image Dissector Tube
• Z — Redshift Factor
• DN — Digital Number
• MSTO — Main Sequence Turn-Off
• BMO — Black Moving Object
• SV — Science Verification
• FES — Fine Error Signal
• PEP — Proposal Entry Processor
• GCVS — General Catalog of Variable Stars
• PODPS — Post Observation Data Processing System
• TAUVEX — Tel Aviv University Ultraviolet Explorer
• JVO — Japanese Virtual Observatory
• OCB — Operational Configuration Baseline
• SAL — Space Astronomy Laboratory (Univ. Wisconsin, Madison WI)
• FPA — Focal Plane Assembly
• ARGOS — Advanced Research Global Observation Satellite
• VRCS — Vernier Reaction Control System
• ORB — Observatoire Royal de Belgique (Royal Observatory of Belgium)
• SWAS — Submillimeter Wave Astronomy Satellite
• SN — SuperNova
• IPS — Inches Per Second
• AST — Apparent Solar Time
• ACRV — Astronaut Crew Rescue Vehicle
• GEIS — Generic Edited Information Set
• UDMH — Unsymmetrical Dimethyl Hydrazine (Alar Metabolite)
• HFQPO(S) — high-frequency quasi-periodic oscillation(s)
• MEM — Maximum Entropy Method
• SED — Spectral Energy Distribution
• EA — Eclipsing Algol
• CDMH — Cold Dark Matter Haloes
• CCAR — Colorado Center for Astrodynamics Research
• VSSCI — Variable Star Section Circulars
• STERJ — Solar, Terrestrial and Environmental Research Japan
• TKSC — Tsukuba Space Center
• BAC — Bordeaux Astrographic Catalog
• DCF — Data Capture Facility
• COTS — Cheap Off the Shelf

• TFMRP — Transfer Function Mode Reduction Package
• BOOK — Bio Optical Organized Knowledge
• ATR — Absolute Time Reference
• GOX — Gaseous Oxygen
• IRDC — Infrared Dark Cloud
• SLOI — Satellite Lake Observatory Initiative
• LCRS — Las Campanas Redshift Survey
• PK — Perek-Kohoutek
• LBV — Luminous Blue Variable
• NICMOS — Near-Infrared Camera and Multi-Object Spectrometer
• VSSSC — Variable Star Section Special Circulars
• SNAP — Structural Network Analysis Program
• SCAS — Southern Cross Astronomical Society, Inc.
• WAA — Western Amateur Astronomers
• SST — Software Support Team
• RPI — Rensselaer Polytechnic Institute (Rensselaer, NY)
• CELT — California Extremely Large Telescope
• VSSRE — Variable Star Section Reprints
• CAAS — Central Arkansas Astronomical Society
• SWEEPS — Sagittarius Window Eclipsing Extrasolar Planet Search
• VFN — virtual file name
• EJASA — Electronic Journal of the Astronomical Society of the Atlantic
• MLY — Mega Light Year
• DOV — Director of Orbital Verification
• NEA — Near-Earth Asteroid
• AWG — Astronomy Working Group
• GTO — Guaranteed Time Observer
• TOYAL — Transactions of the Astronomical Observatory of Yale University
• SOUST — Southern Skies
• STIF — Software Test and Integration Facility
• SRS — Stellar Radiation Sensor
• RQZ — Radio Quiet Zone
• AVWG — Assembly and Verification Working Group
• SLTV — System Level Thermal Vacuum
• VRM — Venus Radar Mapper
• ZOF — zone of exclusion
• NRF — National Research Foundation
• GMC — Giant Molecular Cloud
• CSS — Catalina Sky Survey
• SAREX — Search and Rescue Exercise
• SFS — Smallest Feature Size
• VGRF — Variable-Gravity Research Facility
• SQM — Strange Quark Matter
• CFCO — Committee for Crescent Observation
• FEM — Finite Element Model
• WAA — Wiener Arbeitsgemeinschaft für Astronomie
• LSO — Large Solar Observatory
• OMS — Observatory Monitoring System
• XCS — XMM Cluster Survey
• RC — Reference Catalogue

• BDF — Block Data Format
• ACS — Advanced Camera for Surveys
• EAPU — External Auxiliary Power Unit
• SUVSR — Scandinavian Union of Amateur Astronomers Variable Star Section
• RXTE — Rossi X-Ray Timing Explorer
• DSD — Data Systems Division
• CPMM — characters per millimeter
• DMS — Data Management Subsystem
• ADIL — Astronomy Digital Image Library
• HIPO — Hierarchic Input-Process-Output
• SERF — Space Environment Research Facility
• CAMAC — Computer-Aided Measurement and Control
• NEMP — Nitrogen-Enhanced Metal-Poor
• RNP — Rotation, Nutation and Precession
• ENE — East North East
• ARAA — Annual Review of Astronomy and Astrophysics
• SPIF — Shuttle/POCC Interface Facility
• O — Oblivion
• QV — quick visual
• COMPTEL — Compton Telescope
• ADAF — Advection-dominated Accretion Flow
• CIP — Celestial Intermediate Pole
• TZO — Thorne-Å»ytkow Object
• OPB — Observation Planning Branch
• AESS — Institute of Electrical and Electronic Engineers - Aerospace and Electronics Systems Society
• LMST — Local Mean Sidereal Time
• SPWEA — Space Weather
• AVO — Astrophysical Virtual Observatory
• VZA — Viewing Zenith Angle
• AJD — Astronomical Julian Day
• WBHF — WideBand High Frequency
• CEMP — Carbon-Enhanced Metal-Poor
• WIYN — Wisconsin Indiana Yale NOAO Telescope Consortium
• LIRG — Luminous Infrared Galaxy
• SWAT — Swift Action Team
• CREAM — Cosmic Ray Energetics and Mass
• SCSA — Science and Culture Series Astrophysics
• LENA — Low Energy Neutrino Astronomy
• TIUCS — Transactions of the International Union for Cooperation in Solar Research
• VERITAS — Very Energetic Radiation Imaging Telescope Array System
• IRAC — International Radio Advisory Committee
• PEGA — Programs in Extra-Galactic Astronomy
• SDP — science data packet
• UKIRT — United Kingdom Infrared Telescope
• NIMS — Near-Infrared Mapping Spectrometer
• NOT — NOrdic Telescope
• PMIRR — Pressure Modulated InfraRed Radiometer
• SDMS — Spatial Data Management System
• AGK — Astronomische Gesellschaft Katalog
• STOL — Systems Test and Operations Language

• AQR — Aquarius
• YSO — Young Stellar Object
• SAGA — Solar Array Gain Augmentation
• VPU — video processing unit
• CVAS — Chippewa Valley Astronomical Society
• QPO — Quasi-periodic Oscillation
• EMP — Extremely Metal-Poor
• MWO — Mount Wilson Observatory
• SQPN — staggered quadriphase pseudo-random noise
• IRAC — Infrared Array Camera
• MMR — Mean-Motion Resonance
• EKBO — Edgeworth-Kuiper Belt Object
• RIACS — Research Institute for Advanced Computer Science
• EVAC — East Valley Astronomy Club
• SEB — Source Evaluation Board
• PSL — Program Support Library
• ROLUN — Reports of the Lund Observatory
• THEMIS — Thermal Emission Imaging System
• STAVF — Space Telescope Assembly and Verification Facility
• ETI — Extraterrestrial Intelligence
• RGA — Rate Gyro Assembly
• WXQ — Waxing Quarter
• RTLT — Round Trip Light Time
• C&DH — Control and Data Handling
• P&A — Physics and Astronomy
• RMS — Remote Manipulator System
• SJC — slit jaw camera
• PRESTO — Project to Re-Engineer Space Telescope Observing
• SPA — Solar Panel Assembly
• QZ — Quasi Zenith
• IMSL — International Mathematical and Statistical Library
• GSOWG — Ground Systems Operations Working Group
• WIRE — Wide-Field Infrared Explorer
• DN — Dwarf Nova
• BBH — Big Black Hole
• ULAS — Union List of Astronomy Serials
• CAAA — Capital Area Astronomy Association
• IAAC — Internet Amateur Astronomers Catalog
• GLOW — Gross Lift-Off Weight
• C/C — configuration control
• SPT — South Pole Telescope
• BCCP — Berkeley Center for Cosmological Physics
• TSTO — Two-Stage-To-Orbit
• AD — Analog to Digital
• TWA — TW Hydrae Association
• APT — Automated Patrol Telescope
• IDMP — International Daylight Measurement Program
• OCS — Optical Control System
• PASP — Publications of the Astronomical Society of Pacific
• IFT — Inverse Fourier Transform

• VELLO — Very Low Luminosity Object
• FGS — Fine Guidance Sensors
• SHAD — Stellar Horizon Atmospheric Dispersion
• XN — X-ray Nova
• AOA — ASCA Online Arxiv
• SOFA — Standards of Fundamental Astronomy
• CM — Critical mass
• EAAS — East Antrim Astronomical Society
• WOMBAT — Wavelength-Oriented Microwave Background Analysis Team
• OSB — Operations Software Branch
• CG — Compact Galaxy
• ORR — Orbit Readiness Review
• VILCO — Villanova University Observatory Contributions
• HTVL — Horizontal Takeoff Vertical Landing
• DPOSS — Digitized Palomar Observatory Sky Survey
• SIF — Science Instrument Formatter
• RVMA — Reviews in Modern Astronomy
• IDM — Intelligent Database Machine
• MSE — Milton S. Eisenhower library
• STR — Science Tape Recorder
• LMSC — Lockheed Missile and Space Corporation
• ESTR — Engineering and Science Tape Recorder
• UST — Universal Standard Time
• AET — Accuracy Enhancing Technology
• CCO — Catalogue of Cometary Orbits
• PMDB — Project Management Data Base
• PSR — Pulsar Supernova Remnant
• PTF — Payload Test Facility
• ACP — Aerosol Collector and Pyrolyser
• KAIT — Katzman Automatic Imaging Telescope
• SGRB(S) — short gamma ray burst(s)
• DDCU — DC-to-DC Converter Unit
• FIRST — Far InfraRed and Submillimeter Space Telescope
• HERA — Hermes Robotic Arm
• SAM — Small Angle Maneuver
• SPIEL — Signal Processing Interactive Extensible Language
• LC — Las Campanas observatory
• SETA — Search for Extra Terrestrial Artifacts
• PUSNO — Publications of the US Naval Observatory
• UGSU — UG SU Ursae Majoris
• CASB — Catalogs and Survey Branch
• CISCO — Cooled Infrared Spectrograph and Camera for OHS
• ACS — Actuator Control System
• WISARD — Web Interface for Searching Archival Research Data
• CBS — Contract and Business Services
• CNSR — Comet Nucleus Sample Return
• GBT — Green Bank Telescope
• SSC — Science Support Center
• ICSO — International Conference on Space Optics
• OCO — Oort Cloud Object

• MCG — Morphological Catalog of Galaxies
• OSS — Observation Support System
• CMT — Carlsberg Meridian Telescope
• OVIWG — Orbital Verification Implementation Working Group
• PFI — Partial Frame Image
• SPE — Static Phase Error
• BSG — Blue SuperGiant
• HLO — High Light Output
• SSRV — Space Science Reviews
• CCIR — Comit? Consultatif International Pour La Radio (French For Consultative Committee On International Radio
• ASP — Analog Signal Processor
• MEV — million electron volts
• FPSA — FPA Structure Assembly
• RRAT — Rotating RAdio Transient
• TYC — Tycho
• EAAE — European Association for Astronomy Education
• BRAVO — Back-End Redesign for Added Value for Observers
• CFCP — Center for Cosmological Physics
• IRAIT — International Robotic Antarctic Infrared Telescope
• HTHL — Horizontal Takeoff Horizontal Landing
• RABF — Radio Astronomy Bandstop Filter
• DN — Dwarf Novae
• NPS — North Polar Sequence
• TCB — Barycentric Coordinate Time
• BITP — Bogolyubov Institute for Theoretical Physics
• DSOB — Data Systems Operations Branch
• PFS — Percent Full Scale
• SFC — Space Forecast Center
• E/A — Ephemeris/Attitude
• SIPS — Southern Infrared Proper Motion Survey
• CSAA — Committee on Space Astronomy and Astrophysics
• LCDM — Lambda Cold Dark Matter
• RNGC — Revised New General Catalog
• TAROT — Télescope à Action Rapide pour les Objets Transitoires
• DVA — Detector Vacuum Assembly
• RPO — Research Programs Office
• MAST — Multimission Archive at Space Telescope
• MIDAS — Munich Image Data Analysis System
• STSDAS — Space Telescope Science Data Analysis System
• CADC — Canadian Astronomical Data Center
• ODL — Observation Data Log
• GXY — Galaxy
• EOSL — Earth Observation Systems Laboratory
• XIS — X-ray Imaging Spectrometer
• CVC — Current-to-Voltage Converter
• IRCS — Infrared Camera and Spectrograph
• STL — science trailer line
• SMOV — Servicing Mission Observatory Verification
• GMRT — Giant Meter-wave Radio Telescope
• AEDP — Astrometry and Engineering Data Processing

• REPT — Relativistic Electron-Proton Telescope
• FOCAS — Faint Object Classification and Analysis System
• SEP — System Enhancement Plan
• SQIID — Simultaneous Quad Infrared Imaging Device
• UKST — United Kingdom Schmidt Telescope
• MS — Meteor Scattering
• ETR — Engineering Tape Recorder
• AOC — Award Of Contract
• IQL — Interactive Query Language
• NAO — National Astronomy Olympiad
• ALAT — Airborne Large Aperture Telescope
• LWR — Long Wavelength Redundant
• TML — Total Mass Loss
• PNS — Pulsed Neutron Source
• UCSD — University of California San Diego
• LWS — Long Wavelength Spectrometer
• R&I — Receiving and Inspection
• NLTE — Non-local Thermodynamic Equilibrium
• CIBR — Cosmic Infrared Background Radiation
• L — Lagrange
• ASCA — Advanced Satellite for Cosmology and Astronomy
• CG — Cometary Globule
• BOAO — Bohyunsan Optical Astronomy Observatory
• CMBR — Cosmic Microwave Background Radiation
• PPF — Payload Processing Facility (USAF)
• CMC — Carlsberg Meridian Catalogue
• TECU — Technology and Culture
• FFD — First Fixation Duration
• LSST — Large Synoptic Survey Telescope
• BST — British Summer Time [GMT 0100]
• BEM — Bug-Eyed Monster (Late 40's-early 50'soft-used, and still in use, Sci-Fi term)
• SAREX — Space Amateur Radio Experiment
• RFT — Rich Field Telescope
• SS — Safing System
• IRTF — Infrared Telescope Facility
• AXAF — Assembly and Verification Working Group
• CDIMP — Catalogue of Discoveries and Identifications of Minor Planets
• ♅ — Uranus
• CTIO — Cerro Tololo Inter-American Observatory
• AAAM — Active Amateur Astronomers of Maryland
• PNNV — Planetary Nebula Nucleus Variable
• OC — Open Cluster
• ULE — Ultralow Expansion
• DAV — Deerlick Astronomy Village
• ETRD — Engineering Tape Recorded Data
• BLO — Bl Lac Object
• OSCAR — Orbital Satellite Carrying Amateur Radio
• PNN — Planetary Nebula Nucleus
• ELIAS — European Large Area ISO Survey
• VISTAR — visible space tracking and reconnaissance

• SEI — Space Exploration Initiative
• SS — System Simulator
• TUASB — Tokyo University Institute of Space and Aeronautical Science Bulletin
• IV — intra vehicular
• GEM — Galileo Europa Mission
• CC — Candidate Companion
• MPCS — Minor Planet circulars Supplement
• SJR — Software Justification Report
• CIB — Cosmic Infrared Background
• AAT — Anglo-Australian Telescope
• SANSA — South African National Space Agency
• C&A — calibration and analysis
• SMM — science mission management
• IPPW — International Planetary Probe Workshop
• CXO — Chandra X-ray Observatory
• DCEP — Delta Cepheid
• XSC — Extended Source Catalog
• ATCA — Australia Telescope Compact Array
• IBBTF — Imagination Baffled By The Facts
• PDBI — Plateau de Bure Interferometer
• EAFB — Edwards Air Force Base
• RPSS — Remote Proposal Submission System
• CRTS — Centre Royal de Teledetection Spatiale
• SCUBA — Submillimetre Common User Bolometer Array
• LV — Lunette Verte
• PUAMS — Publications of the Astronomical Institute of the University of Amsterdam
• STEIS — Space Telescope Electronic Information System
• LINER — Low Ionization Nuclear Emission Region
• SDAS — Scientific Data Analysis System
• ISPM — International Solar Polar Mission
• SSU — Steady State Universe
• GMT — Greenwich Mean Time (now obsolete)
• CSV — Catalog of Suspected Variables
• JOP — Joint Observing Program
• PASP — Proceedings of the Astronomical Society of the Pacific
• ITA — Institute of Theoretical Astronomy
• CINEOS — Campo Imperatore Near-Earth Object Survey
• RAG — Radio Astronomy Group
• SRAA — Scenic Rim Astronomy Association, Inc.
• OAO — Orbiting Astronomical Observatory
• DIG — Dwarf Irregular Galaxy
• SAS — Science Analysis Software
• RC — Ritchey-Chretien
• DM — Dark Matter
• OPO — Operations Project Office
• PSR — Project Status Review
• ADS — Aitken Double Stars
• SUPRIME — SUbaru PRIME focus CAMera
• PROS — Post Reduction Offline Software
• FGSAA — FGS Access Area

• ASKAP — Australian Square Kilometre Array Pathfinder
• ACM — Asteroids Comets Meteors
• VRSD — Verification Requirements and Specifications Document
• N — Nova
• APSB — Advance Planning Systems Branch
• CRAP — Completely Radical Anthropic Principle
• SID — Software Implementation Directive
• ASAS — All Sky Automated Survey
• QE — Quality Engineer
• SGEMP — Space-Generated Electromagnetic Pulse
• VSOLB — Variable Star Observers League in Japan - Bulletin
• MU — Memory Unit
• GAF — Geographic Adjustment Factor
• SDA — Science Data Analyst Small Computer Systems Interface
• PWD — Pre-White Dwarf
• TASS — The Amateur Sky Survey
• ISEE — International Sun Earth Explorer
• DAG — Doğu Anadolu Gozlemevi
• OV — Orbital Verification
• MOXE — MOnitoring X-Ray Experiment
• QPSK — quadriture phase shift keying
• STIF — Science and Technology Information Facility
• PNG — Planetary Nebulae, Galactic
• AEG — Astro Event Group
• TAU — Thousand Astronomical Unit
• IARA — Italian Amateur Radio Astronomy
• MOID — Minimum Orbit Intersection Distance
• SIMA — Secondary Mirror Incremental Motor Actuator
• NOMAD — Naval Observatory Merged Astrometric Dataset
• ICF — Intrinsic Correlation Function
• MOSES — Mission Operations and Systems Engineering Support
• TUASR — Tokyo University Institute of Space and Aeronautical Science Report
• PORTS — Preliminary Operations Requirements and Test Support
• WIRCAM — Wide-field InfraRed Camera, instrument on the Canada-France-Hawaii Telescope
• STOCC — Space Telescope Operations Control Center (GSFC, Greenbelt MD)
• AAS — Archaeology Astronautics and Seti
• DES — Dark Energy Survey
• OPD — Operations and Data Processing Division
• SVPHA — Soviet Physics Astronomy
• TO — target of opportunity
• PSI — Planetary Science Institute
• ECT — Equator Crossing Time
• PCT — Program Coordinator Team
• TCG — Geocentric Coordinate Time
• SIB — Science Instrument Branch
• MV — absolute visual magnitude
• LFAE — Light Field Attribute Explorer
• UGZ — UG Z Camelopardalis
• OCX — observation comments file
• GCC — Globular Cluster Candidate

• IB — Interstellar Band
• LOTOSS — Lick Observatory and Tenagra Observatory Supernova Searches
• UMCP — University of Maryland College Park
• OPUS — OSS and PODPS Unified Systems
• SUGRA — Supergravity
• MOTV — Manned Orbital Transfer Vehicle
• MGS — Mars Global Surveyor
• CNO — Carbon-Nitrogen-Oxygen
• LPICO — Lunar and Planetary Institute Contributions
• WKAA — West Kentucky Amateur Astronomers
• TAC — telemetry and command processor
• CST — Constant Strain Triangle
• SESD — Science and Engineering Systems Division
• PEP — PhotoElectric Photometry
• SPSS — Science Planning and Scheduling System
• BATC — Beijing-Arizona-Taiwan-Connecticut
• ACURA — Association of Canadian Universities for Research in Astronomy
• SWAN — Solar Wind ANisotropy
• BAV — Bundesdeutsche Arbeitsgemeinschaft fur Veraenderliche Sterne
• LRG — Luminous Red Galaxy
• DS — Dwarf Star
• ESB — Engineering Support Branch
• PW&SO — Publications of the Warner Swasey Observatory
• IPMO — Isolated Planetary-Mass Objects
• BDEC — Bendix Field Engineering Corporation
• FEB — Falling-Evaporating Body
• CP — Chemically Peculiar
• SMBH — Super Massive Black Hole
• LTM — Like The Moon
• E — Eclipsing
• GSSS — Guide Star Selection System
• NAIF — Navigation Ancillary Information Facility
• VPC — viewport coordinates
• COMICS — Cooled Mid-Infrared Camera and Spectrometer
• MAG — Magnitude
• SSP — Surface Science Packages
• VIMOS — Visible Multiobject Spectrograph
• CNS — Computing and Network Services
• WFS — Wave Front Sensor
• CSPAR — Center for Space Plasma and Aeronomic Research
• OCST — Office of Commercial Space Transportation
• EUSO — Extreme Universe Space Observatory
• HESI — High Energy Solar Imager
• AH — ampere hours
• UGWZ — UG WZ Sagittae
• OW — Outer Wall
• BPM — Bruce Proper Motion
• WDS — Washington Double Star
• ASWG — Astronomical Science Working Group
• FASTT — Flagstaff Astrometric Scanning Transit Telescope

• AGAPE — Andromeda Galaxy and Amplified Pixels Experiment
• UNPSA — United Nations Programme on Space Applications
• RSG — Red Super Giant
• SEST — Swedish-ESO Submillimetre Telescope
• CST — Constant
• RDI — Radiation Driven Implosion
• ILOC — International Lunar Occultation Center
• ATPI — Astronomy Through Practical Investigations
• EIT — Extreme Ultraviolet Imaging Telescope
• APASS — AAVSO Photometric All-Sky Survey
• LEST — Large Earth-based Solar Telescope
• PAR — Photon Activity Rate
• SSPRV — Space and Solar Power Review
• PRE — Photospheric Radius Expansion
• CCO — Central Compact Object
• NLST — National Large Solar Telescope
• ERO — Extremely Red Object
• HDOS — Hughes Danbury Optical Systems (Danbury CT)
• SDM — Secondary Deployment Mechanism
• CSLG — Campus-wide Software License Grants Program
• STDN — Satellite Tracking and Data Network
• LP — Luyten Palomar
• CMCC — Central Mission Control Centre
• KIC — Kepler Input Catalog
• FGC — Flat Galaxy Catalogue
• SINGS — Spitzer Infrared Nearby Galaxies Survey
• RLOF — Roche Lobe Overflow
• BZ — Brillouin zone - a uniquely defined primitive cell in reciprocal space
• NEAP — Near Earth Asteroid Prospector
• SHAD — Stellar Horizon Attitude Determination
• PTF — Palomar Transient Factory
• ABRIXAS — A BRoadband Imaging X-ray All-sky Survey
• TIC — Tycho Input Catalog
• ESIS — European Space Information System
• VVDS — VIMOS-VLT Deep Survey
• TIB — Telescope Instrument Branch
• START — Solar Thermal Analysis Review and Training
• EAC — European Astronaut Centre
• DCA — Detector Control Assembly
• XMM — X-ray Multi- Mirror satellite
• OT — Off-Topic
• SER — Systems Engineering Report
• SOSYR — Solar System Research
• NIU — NASCOM Interface Unit
• LWS — Long-Wave Spectrograph
• SPG — Special Projects Group
• DSN — deep-space network
• EARS — Electrostatic Atmospherics Radio Sensor
• CNES — Centre National d'Etude Spatiales
• FSS — Flight Servicing System

• SVWG — Science Verification Working Group
• OTS — Oasa Tamura Sugitani
• XBP — X-Ray Bright Point
• SIS — SETI (Search for Extra-Terrestial Intelligence) Intercept System
• ECA — Electronics Control Assembly
• CXBR — Cosmic X-ray Background Radiation
• LOTIS — Livermore Optical Transient Imaging System
• GDSO — Georgi Dobrovolski Solar Observatory
• ODS — Our Dark Skies
• USMP — United States Microgravity Payload
• TRACE — Transition Region and Coronal Explorer
• SSSPM — SuperCOSMOS Sky Survey Proper Motion
• PMPS — Parkes Multibeam Pulsar Survey
• IIPS — Interactive Image Processing System
• GC — Galactic Center
• HETE-2 — high energy transient explorer
• MW — Milky Way
• NCSA — National Center for Supercomputer Applications (Urbana IL)
• FEAT — Fine Error Averaging Test
• ACA — Atacama Compact Array
• MLRS — McDonald Laser Ranging Station
• NEO — Near-Earth Object - Non-combatant Evacuation Operations
• MXRB — Massive X-Ray Binary
• CHZ — Circumstellar Habitable Zone
• MRSRM — Mars Rover and Sample Return Mission
• RORF — Radio/Optical Reference Frame
• KAO — Kuiper Airborne Observatory
• SHP — Standard Header Packet
• TSI — Total Solar Irradiance
• SHAR — Stellar Horizon Atmospheric Refraction
• RWA — Reaction Wheel Assembly
• URPX — Uranian Ring Plane Crossing
• ICRC — International Cosmic Ray Conference
• PWN — Pulsar Wind Nebula
• CTRF — Celestial and Terrestrial Reference Frames
• SMC — Small Magellanic Cloud
• SAO — Swinburne Astronomy Online
• EMP — Ephemerides of Minor Planets
• MMF — Moving Magnetic Feature
• IWCA — International Workshop on Cometary Astronomy
• PFR — Portable Foot Restraint
• CRRES — Combined Release Radiation Effects Satellite
• GHZ — Galactic Habitable Zone
• TRB — Test Review Board
• TTC — telemetry, tracking, and command
• SMC — Standard Model of Cosmology
• SAOC — SAO Catalog
• EAPJ — Electronic AstroPhysical Journal Letters
• CIAO — Coronagraphic Imager with Adaptive Optics
• NGST — Next Generation Space Telescope

• SEST — Swedish ESO Submillimeter Telescope
• RC — Red Clump
• CTTS — Classical T Tauri Star
• VISTA — Visible and Infrared Survey Telescope for Astronomy
• UGSS — UG SS Cygni
• NGS — New Generation STAR
• ROTSE — Robotic Optical Transient Search Experiment
• SMM — Spectro-Mirror Mechanism
• MYSO — Massive Young Stellar Object
• CFHT — Canada-France-Hawaii Telescope
• MOR — Mission Operations Room
• ADAS — Asiago DLR Asteroid Survey
• SPS — Solar Power Satellite
• LINEAR — Lincoln Near Earth Asteroid Research
• TRACE — Transition Regional and Coronal Explorer
• TLP — Transient Lunar Phenomenon
• SMO — Servicing Mission Office
• SEA — Sensor Electronics Assembly
• SF — Star Field
• WGAS — Working Group on Astronomical Software
• M — Mira
• ERRSAC — Eastern Regional Remote Sensing Applications Center
• SFU — Space Flier Unit
• LHS — Luyten Half-Second
• IRD — Interface Requirements Document
• KM — Kilometres
• EF — Event Foreground
• PEPE — Plasma Experiment for Planetary Exploration
• BCD — Blue Compact Dwarf
• SEP — Solar Energetic Particle
• CHIP — Cosmic Hot Interstellar Plasma
• CGSS — Catalogue of Galactic S Stars
• UAO — University of Arizona Observatories
• BRAS — Baton Rouge Astronomical Society
• FPAS — FPA Shroud
• WFCAM — Wide Field Camera
• GPB — Group Parameter Block
• AUDS — ALFA Ultra Deep Survey
• COL — Collinder catalog
• DBW — decibel reference to 1 watt
• RSB — Research Support Branch
• IOTA — Infrared-Optical Telescope Array
• BSS — Blue Straggler Star
• CRL — Compound Refractive Lens
• SSO — Special Studies Office
• NS — Neutron Star
• ECO — Earth crossing object
• TPI — Technical Proposal Instructions
• LOSS — Lick Observatory Supernova Search
• MBA — Main-Belt Asteroid

• DCMF — Data Capture and Management Facility
• SCUBA-2 — Submillimetre Common User Bolometer Array 2
• STVSW — Space Telescope Verification Software
• RTC — Researching The Cosmos
• GIMP — Geomagnetically Induced Motion Problem
• GRB — Gamma Ray Bursters
• LN2 — liquid N2
• DIB — Diffuse Interstellar Band
• LP — Lonely Planet
• MMTO — Multiple Mirror Telescope Observatory
• MT — Moving Target
• LETGS — Low Energy Transmission Gratings Spectrometer
• CVP — Continuously Variable Planetary
• WAC — Wide Angle Converter
• BCD — Basic Calibrated Data
• IVC — Institute Visiting Committee
• EOR — End of Record
• TT — Terrestrial Time (replaced Ephemeris Time, ET)
• SCP — Small Computer Systems Interface
• DE — Dwarf elliptical
• SPST — Science Planning and Scheduling Team
• DRS — Direct Receiving Station
• EOL — Earth Observing Laboratory (formerly ATD)
• MUSTANG — Multiplexed SQUID TES Array at Ninety GHz
• MONS — Measuring Oscillations in Nearby Stars
• NODO — NASA Orbital Debris Observatory
• Q&A — qualification and acceptance
• BCVS — Bibliographic Catalogue of Variable Stars
• LMXB — Low-Mass X-Ray Binary
• PASA — Pan-Arab Space Agency
• DDA — Division on Dynamical Astronomy
• MKO — MAUNA KEA OBSERVATORY
• WSAL — Winston-Salem Astronomical League
• CGRO — Compton Telescope
• USOC — Unified System Orbit Computation
• CCITT — Consultative Committee on International Telegraph & Telephone
• OST — Observation Sequence Table
• TAAS — The Albuquerque Astronomical Society
• PFM — Pre-Flight Module
• SSRT — Single Stage Rocket Technology
• GMOS — Gemini Multi-Object Spectrographs
• VLB — Very Long Baseline
• GKS — Graphic Kernel System
• SMS — Sun Moon and Stars
• CTWG — Calibration Targets Working Group
• PWHHO — Publications of West Hendon House Observatory, Sunderland
• OBP — Onboard Processor
• CRAQ — Centre for Research in Astrophysics of Québec
• TB — Thermal Balance
• SFD — SXT Full Disk

• STIC — Space Telescope Institute Council
• NLTT — New Luyten Two-Tenths
• PGPLOT — FORTRAN subroutine library for plotting graphics
• NDC — Network Data Center
• OGLE — Optical Gravitational Lensing Experiment
• ACK — acknowldgement message
• CAL — Casual Astronomy League
• SVAL — Soviet Astronomy Letters
• DDF — Directors Discretionary Funds
• LDE — Long Duration Event
• VF — Variable Frequency
• SXG — Spectrum-X-Gamma
• SIRD — Support Instrumentation Requirements Document
• SPB — Science Planning Branch
• RCS — Readiness Control System
• SIPE — Science Instrument Protective Enclosure
• LSA — Large Science Aperture
• VPO — VISTA Project Office
• CCMS — Command Control and Monitor System
• UCLAP — University of California Los Angeles - Astronomical Papers
• ULX — Ultra-Luminous X-ray source
• PVTEL — PV TELescopii
• ACIS — Advanced CCD Imaging Spectrometer
• GAAC — Gloucester Area Astronomy Club
• SMA — Submillimeter Array
• CANX — Canadian Advanced Nanospace Experiments
• SCARS — Science Computing & Research Support Division
• CMD — Color-Magnitude Diagram
• JSGA — Japan Spaceguard Association
• ACT — Astrographic Catalog Tycho
• SETG — Search for Extra-Terrestrial Genomes
• SSD — Science Support Division
• XRB — X-Ray Background
• CMOS — Complimentary Metal Oxide Semiconductor
• SCOA — Smithsonian Contributions to Astrophysics
• MPP — multi-pinned phase
• MLSO — Mauna Loa Solar Observatory
• LOFAR — Low Frequency Array
• PRR — preliminary requirements review
• LST — Large Stellar Telescope
• ITT — International Telephone and Telegraph Corporation
• JFC — Jupiter Family Comets
• GSP — General Support Pool
• LONEOS — Lowell Observatory Near-Earth-Object Search
• SCAC — Science Computing Advisory Commitee
• FIRST — Faint Images of the Radio Sky at Twenty-centimeters
• TAI — International Atomic Time (Temps Atomique International) [to 2015 July 1st, 35s ahead of UTC; from 2015 July 1st, 36s ahead of UTC.]
• FRB(S) — gamma ray burst(s)
• CGRO — Compton Gamma Ray Obsrvatory
• ALTS — Astronomy Lunch Time Seminar

• WRO — Warren Rupp Observatory
• CSWA — Committee on the Status of Women in Astronomy
• SCT — Schmidt-Cassegrain Telescope
• UKIDSS UKIRT — Infrared Deep Sky Survey
• RRL — RR Lyrae
• US/PS — see PRESTO
• GRAB — Galactic Radiation and Background
• ECF — European Coordinating Facility
• DSOS — Dish Surface Optimization System
• PACS — Photoconductor Array Camera and Spectrometer
• PRB — Preliminary Review Board
• CODMAC — Committee on Data Management and Computing
• SIAF — Science Instrument Aperture File
• SOGS — Science Operations Ground System
• SOB — Science Observatory Branch
• SWRI — Southwest Research Institute
• LSVT — Large Solar Vacuum Telescope
• SDF — Science Data Formatter
• TFOV — target field of view
• MSO — Mount Stromlo Observatory
• EMU — Extra-vehicular Mobility Unit
• CDBS — Calibration Data Base System
• SDS — Star Diagnosis System
• UVCS — Ultraviolet Coronal Spectrometer
• IRS — International Reference Star
• AMASE — Astrophysics Multi-Spectral Archive Search Engine
• OSG — Observatory Support Group
• GRAND — Gamma Ray and Neutron Detector (NASA)
• LSG — Liaison Scientists Group
• DCB — Design Change Board
• HSI — Host System Interface
• MOSS — Moving Object Support System
• TBC — Time Base Correctors
• WYBT — Whole Year Blazar Telescope
• STFS — Space Telescope Flight Software
• HSC — Hierachical Storage Controller
• ACYG — Alpha CYGni
• NTR — Nuclear Thermal Rocket
• R-L — Richardson-Lucy
• CVA — Central Valley Astronomers
• PPM — Positions And Proper Motions (catalog)
• CEP — CEPheid
• SAMPEX — Solar Anomalous And Magnetospheric Particle Explorer (spacecraft)
• DEFCAL — deflection calibration
• WAPP — Wide-base Arecibo Pulsar Processor
• QEH — Quantum Efficiency Hysteresis
• UG — U Geminorum
• CFS — Chandrasekhar - Friedmann - Schutz instability
• WFAO — Wide Field Adaptive Optics
• EB — Eclipsing Beta

• WSGS — White Sands Ground Station
• EPAO — Educational and Public Affairs Office
• AC — Ascendant Cusp
• GRS — Great Red Spot
• SCP — Science Data Analyst
• BSS — Bigelow Sky Survey
• HPR — Hardware Problem Report
• TAAA — Tucson Amateur Astronomy Association
• IAU — International Astrophysical Union
• WF/PC — Wide Field/Planetary Camera
• AIM — Aeronomy of Ice in the Mesosphere
• PM — Primary Mirror
• SOARD — Steward Observatory Asteroid Relational Database
• DRD — Data Requirements Document
• PSR — Pulsar
• CCAS — Cape Cod Astronomical Society
• ASTRO — Autonomous Space Transport Robotic Operations
• PZT — Photographic Zenith Tube
• VMO — Valley of the Moon Observatory
• WDS — Washington Double Star Catalog
• NESS — Near Earth Space Surveillance
• DCL — Digital Control Language
• R&R — Reproducibility And Repeatability
• ISSA — Infrared Sky Survey Atlas
• SIMM — Standard Inline Memory Module
• WFIS — Wide-Field-of-view Imaging Spectrometer
• FIGV — Factor Inercial de Ganho solar do enVidracado
• TO — Texas Instruments
• SCO — Software Change Order
• PROPLYD — Protoplanetary Disk
• WBS — Wide Band Spectrometer
• SSS — SuperCOSMOS Sky Surveys
• STARS — Seismic Telescope for Astrophysical Research from Space
• IRIS — InfraRed Imaging Surveyor
• IO — Interacting Object
• MOMV — Manned Orbital Maneuvering Vehicle
• XANES — X-Ray Near Edge Spectroscopy
• TAMS — Terminal-Age Main Sequence
• MPP — Multi-Pinned-Phase
• WSF — Wake Shield Facility
• PSS — Palomar Sky Survey
• PASS — POCC Application Software Support
• BHXRT — Black Hole X-Ray Transient
• ♆ — Neptune
• WIYN — Wisconsin, Indiana University, Yale University, and NOAO (National Optical Astronomy Observatories) Observatory
• EBA — Electronics Bay Assembly
• TSRS — Trieste Solar Radio System
• WDM — Warm Dark Matter
• EPD — Expected Planetary Differences
• CCDS — Centers for the Commercial Development of Space

• SFN — Star Formation Newsletter
• EBL — Extragalactic Background Light
• SCL — Service Control Level
• RSN — Radio SuperNova
• EDB — Engineering Data Base
• PBO — Pine Bluff Observatory
• ASW — Address and Synchronization Word
• MI — Maximum Influence
• SOFIA — Stratospheric Observatory for Infrared Astronomy
• CSM — Central Star Magnitude
• PDS — Photometric Data Systems
• SXARI — SX ARIetis
• SPYBAL — spectrum Y balance
• STAC — Space Telescope Advisory Council
• AER — Astronomy Education Review
• SAD — Supra-Arcade Downflow
• LDS — Luyten Double Star
• HVPS — High Voltage Power Supply
• IMIO — Image Input/Output
• MFP — magnetic field perturbation theory
• TC — Test Conductor (Controller)
• EOT — End Of Tape
• SCMS — STScI Code Management System
• VST — VLT Survey Telescope
• NEAT — Near Earth Asteroid Tracking
• RSFC — Radially Stratified Flame Core
• SVA — Soviet Astronomy
• EC — Embedded Cluster
• ORFEUS — Orbiting and Retrievable Far and Extreme Ultraviolet Spectrometer
• WFPC2 — Wide Field Planetary Camera-2
• CCS — Cool Carbon Star
• ESTEC — European Space Research and Technology Center
• CRSR — Center for Radiophysics and Space Research
• SLSN-I — hydrogen-poor SLSNe
• WINAR — Windsor Observatory Annual Report
• RS — Reed-Solomon error detection
• NIR — Near Infrared Research
• AOSS — AURA Observatory Support Services
• MEPCO — Meeting of European Planetary and Cometary Observers
• DBSA — Database and System Administration team
• EGRET — Energetic Gamma-Ray Experiment Telescope
• SSA — Star Selector Assembly
• IAPPP — International Amateur/Professional Photoelectric Photometry
• RE — ROSAT (ROentgen SATellite) EUV (Extreme Ultra-Violet)
• LPCI — Lunar Phases Concept Inventory
• SPC — Short Period Comets
• SDD — Single Dish Data
• SB — Super Bright
• TRES — Transatlantic Exoplanet Survey
• VMC — Velocity Modulating Camera

• SIP — Software Implementation Plan
• MSC — Mission Support Calibration
• HR — Hertzsprung-Russell
• NTT — New Technology Telescope
• HKO — Hong Kong Observatory
• LM — Low Mass
• CTA — Computer Technology Associates (GSFC)
• CSMA — Committee on the Status of Minorities in Astronomy
• WBS — Work Breakdown Schedule
• UGWZ — U Gem variable type star (WZ Sagittae sub-type)
• ASIAA — Academia Sinica Institute of Astronomy and Astrophysics
• SSE — Star Selector Encoder
• LWP — Long Wavelength Primary
• GRB(S) — gamma ray burst(s)
• ORD — Operations Requirements Document
• VVS — Vereniging voor Sterrenkunde
• CODE — Creation Out of Deep Energy
• C&T — Communications and Tracking
• BIMA — Berkeley-Illinois-Maryland Array
• OAOT — Orbiting Astronomical Observatory Technology
• MUNICS — MUnich Near-Infrared Cluster Survey
• LAL — LALande
• RAMBO — Robust associations of massive baryonic objects
• CGCS — Cool Galactic Carbon Star
• TAC — The Astronomy Connection
• MUF — Mysterious Unknown Force
• QBSA — Quarterly Bulletin on Solar Activity
• GASA — Graduate Astronomy Students Association
• UVOT — Ultraviolet Optical Telescope
• MHGL — Mexican Hat Gravitational Lens
• MTL — Mission Time Line
• DE — Detector Efficiency
• NGC — New General Catalog
• EED — Extracted Engineering Data
• ECEF — EarthCentered EarthFixed
• MPS — Microlensing Planet Search
• SXPHE — SX PhoEnicis
• LFSA — List of Frequently Seen Acronyms
• GSY — Galactic Standard Year
• MACRO — Monopoles, Astrophysics, and Cosmic Ray Observatory
• MDB — multiplexed data bus
• NGT — Next Generation Telescope
• LIC — local interstellar cloud
• HAC — Huachuca Astronomy Club
• VLM — Very Low Mass
• R — Ray
• ACTS — Advanced Communications Technology Satellite
• SDAS — Scarborough And District Astronomy Society
• YSG — Yellow Super Giant
• PEPSI — PEP System

• F — Fraunhofer lines
• MPEC — Minor Planets Electronic Circular
• LTT — Luyten Two-Tenths
• LSB — Low Surface Brightness
• WAT — Wide Angle Tail
• TAMS — Terminal Age Main Sequence
• VOS — Virtual Operating System
• ICET — International Center for Earth Tides
• DNS — Double Neutron Star
• BATTERS — Bisei Asteroid Tracking Telescopes for Rapid Survey
• FTETTM — From The Earth To The Moon
• GCI — geocentric intertial
• FD — File Descriptor
• ACPG — Astronomical Community Participation Group
• B — Barnard
• CAMC — Carlsberg Automatic Meridian Circle
• WSO — World Space Observatory
• HMC — Halley Multicolor Camera
• NCP — North Celestial Pole
• WFPC2 — Wide Field and Planetary Camera 2
• SZE — Sunyaev-Zeldovich Effect
• SDH — science data header
• MMTF — Maryland-Magellan Tunable Filter
• RFO — Robert Ferguson Observatory
• MIPS — Multi-band Imaging Photometer
• EGP — Extrasolar Giant Planet
• PMS — Pre–Main Sequence
• UESAC — Uppsala-ESO Survey of Asteroids and Comets
• SSB — Science Software Branch
• LTP — Lunar Transient Phenomenon
• WTTS — Weak-Line T-Tauri Star
• SH — Super Hot
• GRU — Ground Replaceable Unit
• UXOR — UX ORionis objects
• PCAS — Planet-Crossing Asteroid Survey
• BO — Biological Origin
• SOFA — Selectable Optical Filter Assembly
• NA — Negative Alignment
• EO — Earth Observatory
• ARAS — Astronomical Ring for Access to Spectroscopy
• MOST — Microvariability and Oscillations of STars Telescope
• AP — Astral Projection
• LS — List Star
• QHO — Quail Hollow Observatory
• CA — Coronagraphic Apodizer
• UV-VIS — Ultraviolet - Visible
• ILRT — intermediate-luminosity red transients
• IYA — International Year of Astronomy
• SSC — STEIS Steering Committee
• SSPS — Sky Survey Prototype System

• TSS — Texas supernova survey
• SRC — Science Research Council (formerly DSIR) (U.K.)
• OAO — Okayama Astrophysical Observatory
• VMOA — Valley of the Moon Observatory Association
• DCX — Delta Clipper Experimental
• IMAGE — Imager for Magnetopause to Auroral Global Exploration
• TR — TRansit
• RSA — Revised Shapley-Ames
• VSSC — Vikram Sarabhai Space Centre
• RCB — R Coronae Borealis
• SPSO — Science Program Selection Office
• TMN — Tokyo Meteor Network
• VFIR — Very Far Infra-Red
• ASWG — ATST (Advanced Technology Solar Telescope) Science Working Group
• ULIRG — Ultraluminous Infrared Galaxy
• AMSU — Advanced Mass Spectrometry Unit
• STAN — Space Telescope Analysis Newsletter
• TCS — Thermal Control System (Subsystem)
• MPAS — Mornington Peninsula Astronomical Society
• XRF — X-Ray Flash
• SIDS — SI Detector System
• SLOWPOKES — Sloan Low-mass Wide Pairs of Kinematically Equivalent Stars
• INFOL — Ingredient Necessary FOr Life
• SPD — Science Programs Division
• NT — Non-Thermal
• NIR — Near Infrared Reflection
• LMT — Large Millimeter Telescope
• VERA — VLBI Exploration of Radio Astrometry
• WMAP — Wilkinson Microwave Anisotrophy Probe
• PGC — Principal Galaxy Catalog
• ARTEMIS — Advanced Relay TEchnology MISsion
• JAC — Japan Astronomical Circular
• TSS — Targeted Search System
• URO — Unidentified Red Object
• RSAA — Research School of Astronomy and Astrophysics
• NSUM — Non-Spatial Universal Mechanics
• WFAU — Wide-Field Astronomy Unit
• BHAS — Black Hills Astronomical Society
• BLAST — Balloon-borne Large Aperture Submillimeter Telescope
• WCT — Window Correction Table
• BB — Black-body
• IUESIPS — Iue Spectral Image Processing System
• MICO — Multi-year Interactive Computer Almanac
• SCRT — Stockholm Centimetre Radio Telescope
• SN — Signal-to-Noise
• STIS — Space Telescope Imaging Spectrograph
• SLSN-II — hydrogen-rich SLSNe
• SPIRIT — SPace InfraRed Imaging Telescope
• PO — Primary Object
• WFPCII — Replacement For WFPC

• OZ — Objective Zenith
• HGD — Hot Gas Discharge
• CRAF — Committee on Radio Astronomy Frequencies
• COD — Carbon Oxygen Dwarf
• FFI — Full Frame Image
• NLDP — National Launch Development Program
• VSAT — Very Small Angle Tracker
• ODX — Occular Dynamic eXperiment
• SAR — Software Analysis Room
• CCF — Cosmogenic Correlation Factor
• VTT — Vacuum Tower Telescope
• HRC — High Resolution Camera
• CIDA — Cometary Interplanetary Dust Analyzer
• WYAS — West Yorkshire Astronomical Society
• SBIG — Santa Barbara Instrument Group
• EME — Earth-to-Moon-to-Earth
• HDF — Hubble Deep Field
• OHD — Observational Hubble-parameter Data
• CCSN — core-collapse supranovæ
• WHDF — William Herschel Deep Field
• STS — Shuttle Transport System
• CIO — Catalog of Infrared Observations
• SGC — Southern Galaxy Catalogue
• NFF — New Firm Formation
• SUSI — Sydney University Stellar Interferometer
• ♇ — Pluto
• RMS — Republic Management Systems, Inc.