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# |
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26M |
26-meter diameter antenna (DSS-16,46 and 66) |
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34(HEF) |
34-meter diameter high efficiency antenna (DSS 15,45 and 65) |
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34BWG1 |
34-meter diameter beam waveguide antenna (DSS 24, 34 and 54) |
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34BWG2 |
34-meter diameter beam waveguide antenna (DSS 25, 26 and 55) |
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34HSB |
34-meter diameter high-speed beam antenna (DSS-27) |
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34M |
34-meter diameter antenna |
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70M |
70-meter diameter antenna (DSS 14, 43 and 63) |
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A |
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ACE |
Advance Composition Explorer Mission |
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ACP |
Asset Contention Period |
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ACR |
Antenna Controller Replacement |
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AOS |
Acquisition of Signal |
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ARC |
Ames Research Center (NASA, Moffett Field, California) |
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ARSE |
Advanced Radio Interferometry between Space and Earth (ARISE) Mission |
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ASCAL |
Antenna and Sun Sensor Calibration |
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ASI |
Agenzia Spaziale Italiana (Italian Space Agency) |
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AVE |
Average |
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AXAF |
Advanced X-ray Astrophysics Facility |
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AZ-EL |
Azimuth-Elevation Axis; (type of antenna mount) |
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B |
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BER |
Bit Error Rate |
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BOT |
Beginning Of Track |
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BWG |
Beam Waveguide (antenna) |
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C |
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C/O |
Checkout |
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CAS |
Cassini Mission |
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CAT M&E |
CATalog Maintenance and Enhancement program |
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C-Band |
Radio frequency band operating at approximately 3.90 to 6.20 gigahertz |
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CDSCC |
Canberra Deep Space Communication Complex (Australia) |
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CHDR |
Chandra X-ray Observatory Mission |
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CLK SYNC |
CLOCK SYNChronization |
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CLOCK SYNC |
CLOCK SYNChronization |
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CLU1 |
Cluster 2 - S/C #1 (Salsa) Mission |
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CLU2 |
Cluster 2 - S/C #2 (Samba) Mission |
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CLU3 |
Cluster 2 - S/C #3 (Rumba) Mission |
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CLU4 |
Cluster 2 - S/C #4 (Tango) Mission |
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CNES |
Centre National d'Etudes Spatiales (France’s National Center for Space
Studies) |
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CSIRO |
Commonwealth Scientific and Industrial Research Organization (Australia) |
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CSOC |
Consolidated Space Operations Contract |
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D |
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D/L |
Downlink |
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Dawn |
Dawn Mission |
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Delta-DOD |
Delta Differential One-Way Doppler (VLBI data type) |
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Delta-DOR |
Delta Differential One-way Ranging |
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DEMO |
DEMOnstration activity |
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DIF |
Deep Impact Mission |
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DOY |
Day Of Year |
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DSCC |
Deep Space Communications Complex |
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DSMS |
Deep Space Mission System |
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DSN |
Deep Space Network |
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DSS |
Deep Space Station |
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DTE |
Direct-to-Earth |
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DTF-21 |
Development and Test Facility |
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DTR |
Digital Tape Recorder |
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E |
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EDL |
Entry, Descent and Landing |
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EGA |
Earth Gravity Assist (maneuver) |
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ENC |
Encounter |
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EOEM |
End Of Extended Mission |
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EOM |
End of Mission |
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EOPM |
End Of Prime Mission |
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EOT |
End Of Track |
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ERT |
Earth-Received Time |
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ESA |
European Space Agency |
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ESOC |
European Space Operations Center (Darmstadt, West Germany) |
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EVN |
European VLBI Network |
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G |
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GBRA |
Ground Based Radio Astronomy |
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GBT |
GreenBank Telescope |
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GDS |
Ground Data System |
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GDSCC |
Goldstone Deep Space Communications Complex (California) |
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GEO |
Geo-synchronous Earth Orbiter |
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GMT |
Greenwich Mean Time |
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GNS |
Genesis Mission |
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GODR |
Goldstone Orbital Debris Radar |
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GPB |
Gravity Probe B Mission |
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GSSR |
Goldstone Solar System Radar Mission |
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GTL |
Geotail Mission |
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GW |
Gravity Wave |
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GWE |
Gravity Wave Experiment |
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H |
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HALCA |
Highly Advanced Laboratory for Communications and Astronomy mission |
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HEF |
High-efficiency (antenna) |
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HEO |
High-Earth Orbiter; Highly Elliptical Orbiter |
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HGA |
High Gain Antenna |
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HSB |
High Speed Bandwidth (antenna) |
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HSO |
Helioseismology Observations (SOHO) |
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I |
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IMAG |
Imager for Magnetopause-to-Aurora Global Exploration Mission |
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IND |
Interplanetary Network Directorate |
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INTG |
International Gamma Ray Astrophysics Lab (INTEGRAL) Mission |
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IOC |
In-Orbit Checkout |
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ISAS |
Japan's Institute of Space and Astronautical Science |
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J |
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JAXA |
Japan Aerospace Exploration Agency |
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JOI |
Jupiter Orbit Insertion |
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JPL |
Jet Propulsion Laboratory |
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JSC |
Johnson Space Center (NASA, Houston, Texas) |
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K |
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Ka-Band |
Radio frequency band operating at approximately 27 to 40 gigahertz |
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KPLR |
Kepler Mission |
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Ku-Band |
Radio frequency band operating at approximately 12 to 18 gigahertz |
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L |
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LEO |
Low Earth Orbiter |
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LEOP |
Launch and Early Orbit Phase |
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LGA |
Low-Gain Antenna |
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LOS |
Loss Of Signal |
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LUNA |
Lunar - A Mission |
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M |
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M01O |
2001 Mars Odyssey Mission |
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M07O |
Mars CNES Premier Orbiter 2007 mission |
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M07S |
Mars Competed Scout 2007 Mission |
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M07T |
Mars ASI/NASA Marconi Telecommunications Orbiter 2007 Mission |
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M09L |
Mars Science Laboratory 2009 Mission |
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M09O |
Mars ASI/NASA Science Orbiter 2009 Mission |
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M09P |
Mars CNES Premier Orbiter 2009 Mission |
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M11L |
Mars CNES MSR Lander 2011 Mission |
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M11O |
Mars CNES MSR Orbiter 2011 Mission |
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M13O |
Mars CNES MSR Orbiter 2013 Mission |
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MAGROL |
Magnetometer Roll Maneuvers |
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MAP |
Microwave Anisotropy Probe Mission |
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MEGA |
Mission Enhancement by Ground-based Astronomy |
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MER1 |
Mars Exploration Rover - B Mission - Opportunity |
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MER2 |
Mars Exploration Rover - A Mission - Spirit |
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MESSENGER |
MErcury Surface Space ENvironment GEochemistry and Ranging Mission |
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MEX |
Mars Express Orbiter Mission |
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MGS |
Mars Global Surveyor Mission |
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MOI |
Mars Orbit Insertion |
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MRO |
Mars Reconnaissance Orbiter Mission |
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MRR |
Mission Requirements Request |
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MSGR |
MESSENGER Mission |
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MSPA |
Multiple Spacecraft Per Antenna |
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MUSC |
MUSES - C Mission |
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MUSES |
Mu Space Engineering Spacecraft |
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M-Wave Spect |
GBRA Microwave Spectroscopy |
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N |
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N/A or NA |
Not Available; also Not Applicable |
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NASA |
National Aeronautics and Space Administration |
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NASDA |
National Space Development Agency (Japan) |
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NEAR |
Near-Earth Asteroid Rendezvous Mission |
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NHRZ |
New Horizons Mission |
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NIB |
Non-Interference Basis |
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NOPE |
Network Operations Project Engineer |
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NOZO |
Nozomi (Planet-B) Mission |
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NRAO |
National Radio Astronomy Observatory |
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NSP |
Network Simplification Program |
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NSS |
Network Support Subsystem |
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O |
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OCM |
Orbit Correction Maneuver |
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ORT |
Operation Readiness Test |
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OSM |
Orbit Stabilization Maneuver |
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OTM |
Orbit Trim Maneuver |
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OVT |
Operational Verification Test |
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OWLT |
One-Way Light Time |
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P |
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PAT |
Performance Acceptance Test |
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PBK |
Playback |
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PEX |
Pluto Express Mission |
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PIT |
Project Interface Test |
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PLNB |
Nozomi (Planet-B) mission |
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PN10 |
Pioneer 10 ACS Mission |
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POLR |
Polar Mission |
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Post |
Post-calibration |
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Pre |
Pre-calibration |
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R |
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RA |
Right Ascension |
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RADA |
RadioAstron Mission |
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RAPT |
Resource Allocation Planning Team |
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RARB |
Resource Allocation Review Board |
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RASA |
Radio Astronomy / Special Activities |
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RNG |
Range (or Ranging) System |
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ROSE |
Rosetta Mission |
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RS or R/S |
Radio Science |
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RSD |
Radar Speckle Displacement (GSSR) |
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RTLT |
Round-Trip Light Time |
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S |
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S/C |
Spacecraft |
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S-Band |
Radio frequency band operating at approximately 1700 to 300 megahertz |
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SDU |
Stardust Mission |
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SELE |
Selene Mission |
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SELENE |
SELenological and ENgineering Explorer mission |
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SGP |
Space Geodesy Program Mission |
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SIRD |
Support Instrumentation Requirements Document |
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SKM |
Station Keeping Maneuver |
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SLE |
Space Link Extension |
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SOE |
Sequence Of Events |
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SOHO |
Solar Heliospheric Observatory Mission |
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SOI |
Saturn Orbit Insertion |
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SOLP |
Solar Probe Mission |
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SPS |
Service Preparation Subsystem |
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SSO |
Single Spacecraft Operations |
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ST5 |
Space Technology 5 Mission |
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STA |
Stereo Ahead Mission |
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STB |
Stereo Behind Mission |
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STF |
Space Infrared Telescope Facility Mission |
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SVLBI |
Space Very Long Baseline Interferometry |
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T |
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TBA |
To Be Announced |
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TBD |
To Be Determined (or Defined) |
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TBS |
To Be Supplied |
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TCM |
Trajectory Correction Maneuver |
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TMOD |
Telecommunications and Mission Operations Directorate |
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TSO |
Temporal Solar Observations (SOHO) |
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U |
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U/L |
Uplink |
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ULYS or ULS |
Ulysses Mission |
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USC |
Microwave Subsystem Controller |
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UTC |
Universal Time Coordinated same as Greenwich Mean Time |
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V |
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VGR1 |
Voyager 1 Mission |
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VGR2 |
Voyager 2 Mission |
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VLBA |
Very Long Baseline Array |
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VLBI |
Very Long Baseline Interferometry |
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VSP2 |
VLBI Space Observatory Programme (VSOP-2) Mission |
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W |
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WCB |
Wide Channel Bandwidth |
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WIND |
Wind Mission |
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X |
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X-Band |
Radio frequency band operating at approximately 8 to 12 gigahertz |
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XMT |
Transmit |
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XMTR |
Transmitter |
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Z |
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Z or Zulu |
Military name for Greenwich Mean Time |
