mark@typhoon.ucar.edu (Mark Bradford) (04/17/91)
Acronym List for sci.astro, sci.space, and sci.space.shuttle: Version 2.1, 16 Apr 1991 Last posted: 12 Mar 1991 This list is offered as a reference for translating commonly appearing acronyms in the space-related newsgroups. If I forgot or botched your favorite acronym, please let me know! Also, if there's an acronym *not* on this list that confuses you, drop me a line, and if I can figure it out I'll add it to the list. The list will be posted at random intervals, more or less monthly. All comments regarding it are welcome; I'm reachable as bradfrd2@ncar.ucar.edu. Note that this just tells what the acronyms stand for -- you're on your own for figuring out what they *mean*! Note also that the total number of acronyms in use far exceeds what I can list; special-purpose acronyms that are essentially always explained as they're introduced are omitted. Thanks to everybody who's sent suggestions since the first version of the list, and especially to Garrett A. Wollman (wollman@griffin.uvm.edu), who is maintaining an independent list, somewhat more verbose in character than mine. He cribs from me, I crib from him. It works. :-) AAS: American Astronomical Society ACRV: Assured Crew Return Vehicle (or) Astronaut Crew Rescue Vehicle AGN: Active Galactic Nucleus ALS: Advanced Launch System ANSI: American National Standards Institute AOA: Abort Once Around (Shuttle abort plan) APU: Auxiliary Power Unit ARC: Ames Research Center (NASA) ASRM: Advanced Solid Rocket Motor ATDRS: Advanced Tracking and Data Relay Satellite ATO: Abort To Orbit (Shuttle abort plan) AU: Astronomical Unit AURA: Association of Universities for Research in Astronomy AW&ST: Aviation Week and Space Technology (a.k.a. AvLeak) AXAF: Advanced X-ray Astrophysics Facility BATSE: Burst And Transient Source Experiment (on GRO) BBXRT: Broad-Band X-Ray Telescope (ASTRO package) BH: Black Hole BTW: By The Way C&T: Communications & Tracking CCAFS: Cape Canaveral Air Force Station CCD: Charge-Coupled Device CD-ROM: Compact Disk Read-Only Memory CFHT: Canada-France-Hawaii Telescope CIT: Circumstellar Imaging Telescope COBE: COsmic Background Explorer COSTAR: Corrective Optics Space Telescope Axial Replacement CRAF: Comet Rendezvous / Asteroid Flyby CRRES: Combined Release / Radiation Effects Satellite CSM: Command and Service Module (Apollo spacecraft) DDCU: DC-to DC Converter Unit DFRF: Dryden Flight Research Facility DMSP: Defense Meteorological Satellite Program DOD: Department Of Defense (sometimes DoD) DOE: Department Of Energy DOT: Department of Transportation EAFB: Edwards Air Force Base ECS: Environmental Control System EDO: Extended Duration Orbiter EGRET: Energetic Gamma Ray Experiment Telescope (on GRO) ELV: Expendable Launch Vehicle EMU: Extravehicular Mobility Unit EOS: Earth Observing System ESA: European Space Agency ET: (Shuttle) External Tank ETLA: Extended Three Letter Acronym ETR: Eastern Test Range EUV: Extreme UltraViolet EUVE: Extreme UltraViolet Explorer EVA: ExtraVehicular Activity FAQ: Frequently Asked Questions FGS: Fine Guidance Sensors (on HST) FIR: Far InfraRed FITS: Flexible Image Transport System FOC: Faint Object Camera (on HST) FOS: Faint Object Spectrograph (on HST) FTP: File Transfer Protocol FTS: Flight Telerobotic Servicer FUSE: Far Ultraviolet Spectroscopic Explorer FYI: For Your Information GAS: Get-Away Special GBT: Green Bank Telescope GEO: Geosynchronous Earth Orbit GHRS: Goddard High Resolution Spectrograph (on HST) GIF: Graphics Interchange Format GMRT: Giant Meter-wave Radio Telescope GMT: Greenwich Mean Time (also called UT) GOES: Geostationary Orbiting Environmental Satellite GPC: General Purpose Computer GPS: Global Positioning System GRO: Gamma Ray Observatory GSC: Guide Star Catalog (for HST) GSFC: Goddard Space Flight Center (NASA) HD: Henry Draper catalog entry HF: High Frequency HLC: Heavy Lift Capability HLV: Heavy Lift Vehicle HR: Hertzsprung-Russell (diagram) HSP: High Speed Photometer (on HST) HST: Hubble Space Telescope HUT: Hopkins Ultraviolet Telescope (ASTRO package) IAU: International Astronomical Union IDA: International Dark-sky Association IDL: Interactive Data Language IGM: InterGalactic Medium IMHO: In My Humble Opinion IOTA: International Occultation Timing Association IR: InfraRed IRAF: Image Reduction and Analysis Facility IRAS: InfraRed Astronomical Satellite ISAS: Institute of Space and Astronautical Science (Japan) ISM: InterStellar Medium ISO: Infrared Space Observatory (or) International Standards Organization ISPM: International Solar Polar Mission (now Ulysses) IUE: International Ultraviolet Explorer IUS: Inertial Upper Stage JEM: Japanese Experiment Module (for SSF) JILA: Joint Institute for Laboratory Astrophysics JPL: Jet Propulsion Laboratory JSC: Johnson Space Center (NASA) KPNO: Kitt Peak National Observatory KSC: Kennedy Space Center (NASA) LANL: Los Alamos National Laboratories LaRC: Langley Research Center (NASA) LDEF: Long Duration Exposure Facility LEM: Lunar Excursion Module (a.k.a. LM) (Apollo spacecraft) LEO: Low Earth Orbit LeRC: Lewis Research Center (NASA) LLNL: Lawrence-Livermore National Laboratories LM: Lunar Module (a.k.a. LEM) (Apollo spacecraft) LN2: Liquid N2 (Nitrogen) LOX: Liquid OXygen LRB: Liquid Rocket Booster MB: Manned Base MCC: Mission Control Center MECO: Main Engine CutOff MMH: MonoMethyl Hydrazine MMT: Multiple Mirror Telescope MMU: Manned Maneuvering Unit MOL: Manned Orbiting Laboratory MOMV: Manned Orbital Maneuvering Vehicle MOTV: Manned Orbital Transfer Vehicle MSFC: (George C.) Marshall Space Flight Center (NASA) MTC: Man Tended Capability NASA: National Aeronautics and Space Administration NASDA: NAtional Space Development Agency (Japan) NASP: National AeroSpace Plane NBS: National Bureau of Standards (now NIST) NGC: New General Catalog NICMOS: Near Infrared Camera / Multi Object Spectrometer (HST upgrade) NIR: Near InfraRed NIST: National Institute for Standards and Technology (was NBS) NOAA: National Oceanic and Atmospheric Administration NOAO: National Optical Astronomical Observatories NRAO: National Radio Astronomical Observatory NRO: National Reconnaissance Organization NS: Neutron Star NSF: National Science Foundation NTT: New Technology Telescope OCST: Office of Commercial Space Transportation OMB: Office of Management and Budget OMS: Orbital Maneuvering System OPF: Orbiter Processing Facility OSC: Orbital Sciences Corporation OSCAR: Orbiting Satellite Carrying Amateur Radio OSSE: Oriented Scintillation Spectrometer Experiment (on GRO) OTA: Optical Telescope Assembly (on HST) OTV: Orbital Transfer Vehicle OV: Orbital Vehicle PAM: Payload Assist Module PM: Pressurized Module PMC: Permanently Manned Capability PV: Photovoltaic QSO: Quasi-Stellar Object RF: Radio Frequency RFI: Radio Frequency Interference RIACS: Research Institute for Advanced Computer Science RMS: Remote Manipulator System RNGC: Revised New General Catalog ROSAT: ROentgen SATellite RTLS: Return To Launch Site (Shuttle abort plan) SAA: South Atlantic Anomaly SAR: Synthetic Aperture Radar SAREX: Shuttle Amateur Radio Experiment SDI: Strategic Defense Initiative SEI: Space Exploration Initiative SETI: Search for ExtraTerrestrial Intelligence SID: Sudden Ionospheric Disturbance SIR: Shuttle Imaging Radar SIRTF: Space InfraRed Telescope Facility SLAR: Side-Looking Airborne Radar SLC: Space Launch Complex SLS: Space Life Sciences SME: Solar Mesosphere Explorer SMM: Solar Maximum Mission SN: SuperNova (e.g., SN1987A) SNR: Signal to Noise Ratio (or) SuperNova Remnant SPAN: Space Physics and Analysis Network SPDM: Special Purpose Dextrous Manipulator SPOT: Systeme Probatoire pour l'Observation de la Terre SPS: Solar Power Satellite SRB: Solid Rocket Booster SRM: Solid Rocket Motor SSF: Space Station Fred (er, Freedom) SSI: Space Studies Institute SSME: Space Shuttle Main Engine SSPF: Space Station Processing Facility SSRMS: Space Station Remote Manipulator System SST: Spectroscopic Survey Telescope (or) SuperSonic Transport SSTO: Single Stage To Orbit STIS: Space Telescope Imaging Spectrometer (to replace FOC and GHRS) STS: Shuttle Transport System (or) Space Transportation System STScI: Space Telescope Science Institute SWF: ShortWave Fading TAL: Transatlantic Abort Landing (Shuttle abort plan) TAU: Thousand Astronomical Unit (mission) TCS: Thermal Control System TDRS: Tracking and Data Relay Satellite TDRSS: Tracking and Data Relay Satellite System TLA: Three Letter Acronym TOMS: Total Ozone Mapping Spectrometer TSS: Tethered Satellite System UARS: Upper Atmosphere Research Satellite UBM: Unpressurized Berthing Mechanism UDMH: Unsymmetrical DiMethyl Hydrazine UGC: Uppsala General Catalog UHF: Ultra High Frequency USAF: United States Air Force UT: Universal Time (a.k.a. GMT, UTC, or Zulu Time) UTC: Coordinated Universal Time (a.k.a. UT) UV: UltraViolet VAB: Vehicle Assembly Building (formerly Vertical Assembly Building) VAFB: Vandenberg Air Force Base VEEGA: Venus-Earth-Earth Gravity Assist (Galileo flight path) VHF: Very High Frequency VLA: Very Large Array VLBA: Very Long Baseline Array VLBI: Very Long Baseline Interferometry VLT: Very Large Telescope VMS: Vertical Motion Simulator VOIR: Venus Orbiting Imaging Radar (superseded by VRM) VRM: Venus Radar Mapper (now called Magellan) WD: White Dwarf WFPC: Wide Field / Planetary Camera (on HST) WFPCII: Replacement for WFPC WIYN: Wisconsin / Indiana / Yale / NOAO telescope WSMR: White Sands Missile Range WTR: Western Test Range -- Mark Bradford (bradfrd2@ncar.ucar.edu) <> To err is human, to moo bovine. "No no no, don't tug on that - you never know what it might be attached to."
mark@typhoon.ucar.edu (Mark Bradford) (05/22/91)
Acronym List for sci.astro, sci.space, and sci.space.shuttle: Version 2.2, 21 May 1991 Last posted: 16 Apr 1991 This list is offered as a reference for translating commonly appearing acronyms in the space-related newsgroups. If I forgot or botched your favorite acronym, please let me know! Also, if there's an acronym *not* on this list that confuses you, drop me a line, and if I can figure it out, I'll add it to the list. The list will be posted at random intervals, more or less monthly. All comments regarding it are welcome; I'm reachable as bradfrd2@ncar.ucar.edu. Note that this just tells what the acronyms stand for -- you're on your own for figuring out what they *mean*! Note also that the total number of acronyms in use far exceeds what I can list; special-purpose acronyms that are essentially always explained as they're introduced are omitted. Further, some acronyms stand for more than one thing; as of version 2.2 of the list, these acronyms appear on multiple lines, unless they're simply different ways of referring to the same thing. Thanks to everybody who's sent suggestions since the first version of the list, and especially to Garrett A. Wollman (wollman@griffin.uvm.edu), who is maintaining an independent list, somewhat more verbose in character than mine, and to Daniel Fischer (dfi@specklec.mpifr-bonn.mpg.de), who is maintaining a truly HUGE list (535 at last count) of acronyms and terms, mostly in German (which I read, fortunately). A&A: Astronomy and Astrophysics AAO: Anglo-Australian Observatory AAS: American Astronomical Society AAVSO: American Association of Variable Star Observers ACE: Advanced Composition Explorer ACRV: Assured Crew Return Vehicle (or) Astronaut Crew Rescue Vehicle AGN: Active Galactic Nucleus AIAA: American Institute of Aeronautics and Astronautics AJ: Astronomical Journal ALPO: Association of Lunar and Planetary Observers ALS: Advanced Launch System ANSI: American National Standards Institute AOA: Abort Once Around (Shuttle abort plan) Ap.J: Astrophysical Journal APU: Auxiliary Power Unit ARC: Ames Research Center (NASA) ATLAS: Atmospheric Laboratory for Applications and Science ASRM: Advanced Solid Rocket Motor ATDRS: Advanced Tracking and Data Relay Satellite ATM: Amateur Telescope Maker ATO: Abort To Orbit (Shuttle abort plan) AU: Astronomical Unit AURA: Association of Universities for Research in Astronomy AW&ST: Aviation Week and Space Technology (a.k.a. AvLeak) AXAF: Advanced X-ray Astrophysics Facility BATSE: Burst And Transient Source Experiment (on GRO) BBXRT: Broad-Band X-Ray Telescope (ASTRO package) BEM: Bug-Eyed Monster BH: Black Hole BIMA: Berkeley Illinois Maryland Array BTW: By The Way C&T: Communications & Tracking CCAFS: Cape Canaveral Air Force Station CCD: Charge-Coupled Device CCDS: Centers for the Commercial Development of Space CD-ROM: Compact Disk Read-Only Memory CFA: Center For Astrophysics CFHT: Canada-France-Hawaii Telescope CHARA: Center for High Angular Resolution Astronomy CIRRIS: Cryogenic InfraRed Radiance Instrument for Shuttle CIT: Circumstellar Imaging Telescope CM: Command Module (Apollo spacecraft) CNO: Carbon-Nitrogen-Oxygen CNSR: Comet Nucleus Sample Return COBE: COsmic Background Explorer COMPTEL: COMPton TELescope (on GRO) COSTAR: Corrective Optics Space Telescope Axial Replacement CRAF: Comet Rendezvous / Asteroid Flyby CRRES: Combined Release / Radiation Effects Satellite CSM: Command and Service Module (Apollo spacecraft) CTIO: Cerro Tololo Interamerican Observatory DDCU: DC-to-DC Converter Unit DFRF: Dryden Flight Research Facility DMSP: Defense Meteorological Satellite Program DOD: Department Of Defense (sometimes DoD) DOE: Department Of Energy DOT: Department of Transportation EAFB: Edwards Air Force Base ECS: Environmental Control System EDO: Extended Duration Orbiter EGRET: Energetic Gamma Ray Experiment Telescope (on GRO) ELV: Expendable Launch Vehicle EMU: Extravehicular Mobility Unit EOS: Earth Observing System ESA: European Space Agency ESO: European Southern Observatory ET: (Shuttle) External Tank ETLA: Extended Three Letter Acronym ETR: Eastern Test Range EUV: Extreme UltraViolet EUVE: Extreme UltraViolet Explorer EVA: ExtraVehicular Activity FAQ: Frequently Asked Questions FAST: Fast Auroral SnapshoT explorer FFT: Fast Fourier Transform FGS: Fine Guidance Sensors (on HST) FIR: Far InfraRed FITS: Flexible Image Transport System FOC: Faint Object Camera (on HST) FOS: Faint Object Spectrograph (on HST) FTP: File Transfer Protocol FTS: Flight Telerobotic Servicer FUSE: Far Ultraviolet Spectroscopic Explorer FWHM: Full Width at Half Maximum FYI: For Your Information GAS: Get-Away Special GBT: Green Bank Telescope GCVS: General Catalog of Variable Stars GEM: Giotto Extended Mission GEO: Geosynchronous Earth Orbit GDS: Great Dark Spot GHRS: Goddard High Resolution Spectrograph (on HST) GIF: Graphics Interchange Format GMC: Giant Molecular Cloud GMRT: Giant Meter-wave Radio Telescope GMT: Greenwich Mean Time (also called UT) GOES: Geostationary Orbiting Environmental Satellite GPC: General Purpose Computer GPS: Global Positioning System GRO: Gamma Ray Observatory GRS: Gamma Ray Spectrometer (on Mars Observer) GRS: Great Red Spot GSC: Guide Star Catalog (for HST) GSFC: Goddard Space Flight Center (NASA) GTO: Geostationary Transfer Orbit HAO: High Altitude Observatory HD: Henry Draper catalog entry HEAO: High Energy Astronomical Observatory HF: High Frequency HGA: High Gain Antenna HLC: Heavy Lift Capability HLV: Heavy Lift Vehicle HMC: Halley Multicolor Camera (on Giotto) HR: Hertzsprung-Russell (diagram) HRI: High Resolution Imager (on ROSAT) HSP: High Speed Photometer (on HST) HST: Hubble Space Telescope HUT: Hopkins Ultraviolet Telescope (ASTRO package) HV: High Voltage IAU: International Astronomical Union IAUC: IAU Circular ICE: International Cometary Explorer IDA: International Dark-sky Association IDL: Interactive Data Language IGM: InterGalactic Medium IGY: International Geophysical Year IMHO: In My Humble Opinion IOTA: Infrared-Optical Telescope Array IOTA: International Occultation Timing Association IPS: Inertial Pointing System IR: InfraRed IRAF: Image Reduction and Analysis Facility IRAS: InfraRed Astronomical Satellite ISAS: Institute of Space and Astronautical Science (Japan) ISM: InterStellar Medium ISO: Infrared Space Observatory ISO: International Standards Organization ISPM: International Solar Polar Mission (now Ulysses) ISY: International Space Year IUE: International Ultraviolet Explorer IUS: Inertial Upper Stage JEM: Japanese Experiment Module (for SSF) JGR: Journal of Geophysical Research JILA: Joint Institute for Laboratory Astrophysics JPL: Jet Propulsion Laboratory JSC: Johnson Space Center (NASA) KAO: Kuiper Airborne Observatory KPNO: Kitt Peak National Observatory KSC: Kennedy Space Center (NASA) KTB: Cretaceous-Tertiary Boundary (from German) LANL: Los Alamos National Laboratory LaRC: Langley Research Center (NASA) LDEF: Long Duration Exposure Facility LEM: Lunar Excursion Module (a.k.a. LM) (Apollo spacecraft) LEO: Low Earth Orbit LeRC: Lewis Research Center (NASA) LEST: Large Earth-based Solar Telescope LFSA: List of Frequently Seen Acronyms (!) LGA: Low Gain Antenna LGM: Little Green Men LH: Liquid Hydrogen (also LH2 or LHX) LLNL: Lawrence-Livermore National Laboratory LM: Lunar Module (a.k.a. LEM) (Apollo spacecraft) LMC: Large Magellanic Cloud LN2: Liquid N2 (Nitrogen) LOX: Liquid OXygen LRB: Liquid Rocket Booster LSR: Local Standard of Rest LTP: Lunar Transient Phenomenon MB: Manned Base MCC: Mission Control Center MECO: Main Engine CutOff MMH: MonoMethyl Hydrazine MMT: Multiple Mirror Telescope MMU: Manned Maneuvering Unit MNRAS: Monthly Notices of the Royal Astronomical Society MOC: Mars Observer Camera (on Mars Observer) MOL: Manned Orbiting Laboratory MOLA: Mars Observer Laser Altimeter (on Mars Observer) MOMV: Manned Orbital Maneuvering Vehicle MOTV: Manned Orbital Transfer Vehicle MPC: Minor Planets Circular MRSR: Mars Rover and Sample Return MRSRM: Mars Rover and Sample Return Mission MSFC: (George C.) Marshall Space Flight Center (NASA) MTC: Man Tended Capability NASA: National Aeronautics and Space Administration NASDA: NAtional Space Development Agency (Japan) NASM: National Air and Space Museum NASP: National AeroSpace Plane NBS: National Bureau of Standards (now NIST) NDV: NASP Derived Vehicle NGC: New General Catalog NICMOS: Near Infrared Camera / Multi Object Spectrometer (HST upgrade) NIMS: Near-Infrared Mapping Spectrometer (on Galileo) NIR: Near InfraRed NIST: National Institute for Standards and Technology (was NBS) NOAA: National Oceanic and Atmospheric Administration NOAO: National Optical Astronomical Observatories NRAO: National Radio Astronomical Observatory NRO: National Reconnaissance Organization NS: Neutron Star NSF: National Science Foundation NSSDC: National Space Science Data Center NTT: New Technology Telescope OAO: Orbiting Astronomical Observatory OCST: Office of Commercial Space Transportation OMB: Office of Management and Budget OMS: Orbital Maneuvering System OPF: Orbiter Processing Facility ORFEUS: Orbiting and Retrievable Far and Extreme Ultraviolet Spectrometer OSC: Orbital Sciences Corporation OSCAR: Orbiting Satellite Carrying Amateur Radio OSSA: Office of Space Science and Applications OSSE: Oriented Scintillation Spectrometer Experiment (on GRO) OTA: Optical Telescope Assembly (on HST) OTV: Orbital Transfer Vehicle OV: Orbital Vehicle PAM: Payload Assist Module PI: Principal Investigator PLSS: Portable Life Support System PM: Pressurized Module PMC: Permanently Manned Capability PMIRR: Pressure Modulated InfraRed Radiometer (on Mars Observer) PMT: PhotoMultiplier Tube PSF: Point Spread Function PSR: PulSaR PV: Photovoltaic PVO: Pioneer Venus Orbiter QSO: Quasi-Stellar Object RCS: Reaction Control System RF: Radio Frequency RFI: Radio Frequency Interference RIACS: Research Institute for Advanced Computer Science RMS: Remote Manipulator System RNGC: Revised New General Catalog ROSAT: ROentgen SATellite RTG: Radioisotope Thermoelectric Generator RTLS: Return To Launch Site (Shuttle abort plan) SAA: South Atlantic Anomaly SAMPEX: Solar Anomalous and Magnetospheric Particle EXplorer SAO: Smithsonian Astrophysical Observatory SAR: Search And Rescue SAR: Synthetic Aperture Radar SARA: Satellite pour Astronomie Radio Amateur SAREX: Search and Rescue Exercise SAREX: Shuttle Amateur Radio Experiment SAS: Space Activity Suit S/C: SpaceCraft SCA: Shuttle Carrier Aircraft SCT: Schmidt-Cassegrain Telescope SDI: Strategic Defense Initiative SDIO: Strategic Defense Initiative Organization SEI: Space Exploration Initiative SEST: Swedish-European Submillimeter Telescope SETI: Search for ExtraTerrestrial Intelligence SID: Sudden Ionospheric Disturbance SIR: Shuttle Imaging Radar SIRTF: Space (formerly Shuttle) InfraRed Telescope Facility SL: SpaceLab SLAR: Side-Looking Airborne Radar SLC: Space Launch Complex SLS: Space(lab) Life Sciences SMC: Small Magellanic Cloud SME: Solar Mesosphere Explorer SMEX: SMall EXplorers SMM: Solar Maximum Mission SN: SuperNova (e.g., SN1987A) SNR: Signal to Noise Ratio SNR: SuperNova Remnant SNU: Solar Neutrino Units SOFIA: Stratospheric Observatory For Infrared Astronomy SOHO: SOlar Heliospheric Observatory SPAN: Space Physics and Analysis Network SPDM: Special Purpose Dextrous Manipulator SPOT: Systeme Probatoire pour l'Observation de la Terre SPS: Solar Power Satellite SRB: Solid Rocket Booster SRM: Solid Rocket Motor SSF: Space Station Fred (er, Freedom) SSI: Solid-State Imager (on Galileo) SSI: Space Studies Institut SSME: Space Shuttle Main Engine SSPF: Space Station Processing Facility SSRMS: Space Station Remote Manipulator System SST: Spectroscopic Survey Telescope SST: SuperSonic Transport SSTO: Single Stage To Orbit STIS: Space Telescope Imaging Spectrometer (to replace FOC and GHRS) STS: Shuttle Transport System (or) Space Transportation System STScI: Space Telescope Science Institute SWAS: Submillimeter Wave Astronomy Satellite SWF: ShortWave Fading TAL: Transatlantic Abort Landing (Shuttle abort plan) TAU: Thousand Astronomical Unit (mission) TCS: Thermal Control System TDRS: Tracking and Data Relay Satellite TDRSS: Tracking and Data Relay Satellite System TES: Thermal Emission Spectrometer (on Mars Observer) TLA: Three Letter Acronym TOMS: Total Ozone Mapping Spectrometer TPS: Thermal Protection System TSS: Tethered Satellite System UARS: Upper Atmosphere Research Satellite UBM: Unpressurized Berthing Mechanism UDMH: Unsymmetrical DiMethyl Hydrazine UFO: Unidentified Flying Object UGC: Uppsala General Catalog UHF: Ultra High Frequency UIT: Ultraviolet Imaging Telescope (Astro package) UKST: United Kingdom Schmidt Telescope USAF: United States Air Force USMP: United States Microgravity Payload UT: Universal Time (a.k.a. GMT, UTC, or Zulu Time) UTC: Coordinated Universal Time (a.k.a. UT) UV: UltraViolet UVS: UltraViolet Spectrometer VAB: Vehicle Assembly Building (formerly Vertical Assembly Building) VAFB: Vandenberg Air Force Base VEEGA: Venus-Earth-Earth Gravity Assist (Galileo flight path) VHF: Very High Frequency VLA: Very Large Array VLBA: Very Long Baseline Array VLBI: Very Long Baseline Interferometry VLF: Very Low Frequency VLT: Very Large Telescope VMS: Vertical Motion Simulator VOIR: Venus Orbiting Imaging Radar (superseded by VRM) VRM: Venus Radar Mapper (now called Magellan) WD: White Dwarf WFPC: Wide Field / Planetary Camera (on HST) WFPCII: Replacement for WFPC WIYN: Wisconsin / Indiana / Yale / NOAO telescope WSMR: White Sands Missile Range WTR: Western Test Range WUPPE: Wisconsin Ultraviolet PhotoPolarimter Experiment (Astro package) XMM: X-ray Multi Mirror XUV: eXtreme UltraViolet YSO: Young Stellar Object -- Mark Bradford (bradfrd2@ncar.ucar.edu) <> To err is human, to moo bovine. "Look! A giant, scaly ape!"