| Acronym |
Definition |
|
A |
| AAC |
Associate Analysis Center |
| AC |
Analysis Center |
| AC |
Astronomical Council (Russia) |
| ACC |
IGS Analysis Center Coordinator |
| ACSnet |
Australian Computer Science Network |
| ADEOS |
Advanced Earth Observing Satellite |
| AFGL |
Air Force Geophysics Laboratory |
| AGU |
American Geophysical Union |
| AIUB |
Astronomical Institute of Berne (Berne, Switzerland) |
| ALO |
Astronomical Latitude Observatory (Poland) |
| AMSAT |
Amateur Satellite |
| AOA |
Allen Osborne Associates (USA) |
| APOLLO |
Apache Point Observatory Lunar Laser-ranging Operation (USA) |
| APSG |
Asia-Pacific Space Geodynamics Program |
| ARC |
Ames Research Center (Moffett Field, CA) |
| ARELAS |
Arequipa, Peru Laser Station |
| ARI |
Academic Research Infrastructure |
| ARIES |
Astronomical Radio Interferometric Earth |
| ARPAnet |
Advanced Research Projects Agency Network |
| ASI |
Italian Space Agency (Italy) |
| ASL |
Albuquerque Seismological Laboratory |
| ATSC |
AlliedSignal Technical Services Corporation (Lanham, MD) |
| AUSLAS |
Graz, Austria Laser Station |
| AUSLIG |
Australian Surveying and Land Information Group |
| AWG |
Analysis Working Group (ILRS) |
| AZ |
Azimuth |
| AZ-EL |
Azimuth-Elevation |
|
B |
| BARD |
Bay Area Regional Deformation (USA) |
| BBS |
Bulletin Board System |
| BE-C |
Beacon Explorer C |
| BFEC |
Bendix Field Engineering Corporation (Lanham, MD) |
| BFL |
Bundesamt fur Landestopographie (Switzerland) |
| BIPM |
Bureau International des Poids et Measures (France) |
| BIGS |
Brazilian Institute of Geography and Statistics |
| BIH |
Bureau International de l'Heure |
| BITnet |
Because It's Time Network |
| BKG |
Bundesamt für Kartographie und Geodäsie (Germany) |
| BM |
Bench Mark |
|
C |
| Cal/Val |
Calibration/Validatation |
| CB |
Central Bureau |
| CBIS |
Central Bureau Information System |
| CCD |
Charged Coupled Device |
| CDP |
Crustal Dynamics Project |
| CEE |
Centro de Estudios Espaciales (Chile) |
| CERGA |
Centre d'Etudes et de Recherches Geodynamiques et Astronomiques
(France) |
| CERN |
Center for European Laboratory for Particle Physics (Switzerland) |
| CfA |
Center for Astrophysics (USA) |
| CGS |
Centro di Geodesia Spaziale (Italy) |
| CHAMP |
Challenging Mini-Satellite Payload |
| CIC |
CIGNET Information Center (Rockville, MD) |
| CICESE |
Centro de Investigacion Cientifica y de Education Superior
de Ensenada (Mexico) |
| CIGNET |
Cooperative International GPS Network |
| CIO |
Conventional International Origin |
| CIPE |
Central Institute for Physics of the Earth (Germany) |
| CIS |
Commonwealth of Independent States |
| CLG |
Central Laboratory for Geodesy (Bulgaria) |
| CLS |
Collecte, Localisation, Satellites (France) |
| CM |
Center of Mass |
| CNES |
Centre National d'Etudes Spatiales (France) |
| CODE |
Center for Orbit Determination in Europe |
| Co-I |
Co-Investigator |
| COM |
Center of Mass |
| CORE |
Continuous Observation of the Rotation of the Earth |
| CORS |
Continuously Operating Reference Station |
| COSMIC |
Constellation Observing System for Meteorology, Ionosphere
and Climate |
| COSPAR |
Committee on Space Research |
| CPF |
Consolidated Prediction Format |
| CPP |
Combination Pilot Project |
| CRL |
Communications Research Laboratory (Japan) |
| CRLHI |
CRL, Hiraiso Solar Terrestrial Research Center (Ibaraki, Japan) |
| CSIR |
Council for Scientific and Industrial Research (South Africa) |
| C-SPAD |
Compensated Single Photoelectron Avalanche Detector |
| CSR |
Center for Space Research (University of Texas, Austin, TX) |
| CSRIFS |
Combined Square Root Information Filter and Smoother |
| CSTG |
International Coordination of Space Techniques for Geodesy
and Geodynamics |
| CTIOV1 |
Cerro Tololo Inter-American Observatory (La Serena, Chile) |
|
D |
| D-PAF |
Germany Processing and Analysis Facility |
| DAN |
Canadian Network |
| DAO |
Dominion Astrophysical Observatory (Victoria, Canada) |
| DBMS |
Data Base Management System |
| DC |
IGS Data Center |
| DDN |
Defense Data Network |
| DDNA |
Divided Difference Noise Analysis |
| DEC |
Digital Equipment Corporation |
| DECnet |
DEC networking product |
| DEOS |
Delft Institute for Earth-Oriented Space Research (The Netherlands) |
| DFN |
Deutsches Forschungnetz (Germany) |
| DFRF |
Dryden Flight Research Facility (Edwards, CA) |
| DFTNIC |
Data Flow Technology Network Information Center (GSFC) |
| DGFI |
Deutsches Geodaetisches ForschungsInstitut (Germany) |
| DGPS |
Differential GPS |
| DLR |
Deutsche Forschungsanstalt für Luft- und Raumfahrt (Germany) |
| DMAHTC |
Defense Mapping Agency Hydrographic and Topographic Center |
| DOMES |
Directory of MERIT Sites |
| DORIS |
Doppler Orbitography and Radiopositioning Integrated by Satellite |
| DOSE |
Dynamics of the Solid Earth |
| DOSLI |
Department of Survey and Land Information (Wellington, New
Zealand) |
| DOY |
Day of year |
| DPSSL |
Diode Pumped Solid State laser |
| DRAO |
Dominion Radio Astrophysical Observatory (Canada) |
| DREN |
Defense Research and Engineering Network |
| DSIR/PEL |
Dept. of Scientific & Indus. Res./Physics & Engineering Lab
(Lauder, New Zealand) |
| DSN |
Deep Space Network |
| DSS |
Deep Space Station |
| DUT |
Delft University of Technology (The Netherlands) |
| DUT/OSG |
Delft University of Technology/Observatory for Space Geodesy
(The Netherlands) |
|
E |
| EARN |
European Academic Research Network |
| ED |
European Datum |
| EDC |
EuroLAS Data Center (Munich, Germany) |
| EDM |
Electronic Distance Measuring |
| EGNOS |
European Geostationary Navigation Overlay System |
| EGS |
European Geophysical Society |
| EGU |
European Geophysical Union |
| EMR |
Energy, Mines, and Resources (Canada) |
| ENSO |
El Niño/Southern Oscillation |
| EOP |
Earth Orientation Parameter |
| EOS |
Electro Optical Systems (Australia) |
| EPUSP-PTR |
Escola Politecnica da USP-PTR |
| ERI |
Earthquake Research Institute, University of Tokyo (Japan) |
| ERP |
Earth rotation parameter |
| ERS |
Earth Resources Satellite |
| ERS-1 |
Earth Resources Satellite 1 |
| ERS-2 |
Earth Resources Satellite 2 |
| ESA |
European Space Agency |
| ESE |
Earth Science Enterprise (USA) |
| ESOC |
European Space Operations Center |
| ET |
Event Timer |
| ETS |
Engineering Test Satellite |
| EUREF |
European Reference Frame |
| EUROLAS |
European Laser Consortium |
| Euro-SPAN |
European Space Physics Analysis Network |
|
F |
| FESG |
Forschungseinrichting Satellitengeodäsie (Research Facility
for Space Geodesy, Germany) |
| FFI |
Forsvarets ForskningsInstitutt (Norwegian Defense Research
Establishment) |
| FGI |
Finnish Geodetic Institute |
| FGNP |
Field Generated Normal Points |
| FINLAS |
Metsahovi, Finland Laser Station |
| FLINN |
Fiducial Laboratories for an International Natural Science
Network |
| FR |
Full-Rate |
| FRD |
Foundation for Research and Development (South Africa) |
| FTLRS |
French Transportable Laser Ranging System |
|
G |
| GA |
Geosciences Australia |
| GAPE |
Great Alaska and Pacific VLBI Experiment |
| GAMIT |
GPS At MIT |
| GAOUA |
Main Astronomical Observatory of the National Academy of Sciences
of Ukraine |
| GB |
Governing Board |
| GBSS |
Geodetic base station software |
| GDC |
IGS Global Data Center |
| GDSN |
Global Digital Seismograph Network |
| GeoDAF |
Geodetical Data Archive Facility (Italy) |
| GeodIS |
Geodetic Information System (Germany) |
| GEOS |
Geodetic and Earth Orbiting Satellite |
| GEOSAT |
Geodesy Satellite |
| GFO |
Geosat Follow-On |
| GFO-1 |
Geosat Follow-On 1 |
| GFZ |
GeoForschungsZentrum (Potsdam, Germany) |
| GGAO |
Goddard Geophysical and Astronomical Observatory (Greenbelt,
MD) |
| GGN |
Global GPS Network |
| GGOS |
Global Geodetic Observing System |
| GGP |
Global Geodynamics Project (Gravity) |
| GHMA |
Greek Hellenic Mapping Agency |
| GI |
Geological Institute (Russia) |
| GIG |
GPS IERS and Geodynamics Experiment |
| GIPSY |
GPS-Inferred Positioning System |
| GISS |
Goddard Institute for Space Studies (New York, NY) |
| GLAS |
Geoscience Laser Altimeter System |
| GLONASS |
Global Navigation Satellite System |
| GLONASS |
Global'naya Navigatsionnay Sputnikovaya Sistema (Russia) |
| GLRS |
Geodynamics Laser Ranging System |
| GLTN |
Goddard Laser Tracking Network (USA) |
| GNAAC |
IGS Global Network Associate Analysis Center |
| GOCE |
Gravity Field and Steady-State Ocean Circulation Explorer |
| GOES |
Geostationary Operational Environmental Satellite |
| GOME |
Global Ozone Monitoring Experiment |
| GORF |
Goddard Optical Research Facility (Greenbelt, MD) |
| GP-B |
Gravity Probe B |
| GRACE |
Gravity Recovery And Climate Experiment |
| GRELAS |
Dionysos, Greece Laser Station |
| GRGS |
Groupe de Recherches de Geodesie Speciale (France) |
| GRS |
Global Reference System |
| GSAC |
GPS Seamless Archive Center |
| GSC |
Geological Survey of Canada |
| GSD |
Geological Survey Division, NRCan (Canada) |
| GSI |
Geographical Survey Institute (Tsukuba, Japan) |
| GSN |
Global Seismographic Network |
| GSS |
Geodetic Survey Squadron |
| GSTB |
Galileo System Test Bed |
| GTSN |
Global Telemetered Seismograph Network |
| GUTS |
Global and High Accuracy Trajectory Determination System |
|
H |
| H2A/LRE |
Laser Ranging Experiment |
| HARTRAO |
Hartebeesthoek Radio Astronomy Observatory (South Africa) |
| HAVAGO |
Horizontal and Vertical Adjustment of Geodetic Observations |
| HDJ |
Hydrographic Department of Japan |
| HEPnet |
High Energy Physics Network |
| HMC |
Hydrogen Maser Clock |
| HO |
Haystack Observatory (Haystack, MA) |
| HOLLAS |
Haleakala Laser Station (Maui, HI) |
| HOPLAS |
Mount Hopkins Laser Station (Mt. Hopkins, AZ) |
| HRAO |
Hartebeesthoek Radio Astronomy Observatory |
| HRAS |
Harvard Radio Astronomy Station |
| HTC |
Hydrographic and Topographic Center |
| HTSI |
Honeywell Technology Solutions, Inc. (USA) |
|
I |
| IAA/RAS |
Institute of Applied Astronomy of the Russian Academy of Sciences |
| IAG |
International Association of Geodesy |
| IAPG |
Institut für Astronomische und Physikalische Geodäsie
(Germany) |
| IAU |
International Astronomical Union |
| IBGE |
Instituto Brasileiro de Geografia de Estatistica (Brazil) |
| ICCG |
Interagency Coordinating Committee for Geodynamics |
| ICG |
Inter-Union Commission of Geodynamics |
| ICESat |
Ice Cloud and Land Elevation Satellite |
| ICET |
International Center for Earth Tides |
| ICRF |
International Celestial Reference Frame |
| ICRS |
International Celestial Reference System |
| IDA |
International Deployment of Accelerometers Network |
| IDS |
International DORIS Service |
| IERS |
International Earth Rotation Service |
| IESAS |
Academia Sinica, Institute of Earth Sciences (Taiwan) |
| IFAG |
Institut für Angewandte Geodaesie (Germany) |
| IFE |
Institut für Erdmessung (Germany) |
| IGeS |
International Geoid Service |
| IGEX |
International GLONASS Experiment |
| IGGOS |
Integrated Global Geodetic Observing System |
| IGLOS-PP |
International GLONASS Service -- Pilot Project |
| IGN |
Institut Geographique National (France) |
| IGOS |
Integrated Global Observing Strategy |
| IGP |
IGS predicted orbit |
| IGR |
IGS rapid orbit |
| IGS |
International GNSS Service |
| IGSCB |
IGS Central Bureau |
| ILRS |
International Laser Ranging Service |
| IMVP |
Institute of Metrology for Time and Space (Russia) |
| INASAN |
Institute of Astronomy of the Russian Academy of Sciences |
| INPE |
Instituto Nacional de Pesquisas Espaciais (Brazil) |
| InSAR |
Interferometric Synthetic Aperture Radar |
| INTA |
Instituto Nacional de Technica Aeroespacial (Spain) |
| ION |
Institute of Navigation (USA) |
| IONEX |
Ionosphere map exchange format |
| IPIE |
Science Research Institute for Precision Instrument Engineering
(Russia) |
| IPRG |
Institute for Petroleum Research and Geophysics (Israel) |
| IRFC |
IGS Reference Frame Coordinator |
| IRIS |
Indian Research Satellite |
| IRS |
Institut für Erdmessung (Germany) |
| IRV |
Inter-Range Vector |
| ISAS |
Institute for Space and Astronautic Science (Sagamihara, Japan) |
| ISGN |
Integrated Space Geodetic Network |
| ISRO |
Institute for Space Research Observatory (Graz, Austria) |
| ISTRAC |
ISRO Telemetry Tracking and Command Network (India) |
| ITRF |
International Terrestrial Reference Frame |
| ITRS |
International Terrestrial Reference System |
| ITSS |
Raytheon Information Technology and Scientific Services (USA) |
| IUGG |
International Union of Geodesy and Geophysics |
| IVS |
International VLBI Service for Geodynamics and Astrometry |
| IVTAN |
Institute for High Temperature of the Russian Academy of Sciences |
|
J |
| JAnet |
Joint Academic Network (United Kingdom) |
| JAROS |
Japan Resources Observation System Organization |
| JAXA |
Japan Aerospace Exploration Agency |
| JCET |
Joint Center for Earth Systems Technology (USA) |
| JEA |
Environmental Agency of Japan |
| JGM |
Joint Gravity Model |
| JGR |
Journal of Geophysical Research |
| JHD |
Japanese Hydrographic Department |
| JILA |
Joint Institute for Laboratory Astrophysics (USA) |
| JIVE |
Joint Institute for VLBI for Europe |
| JPS |
Javad Positioning Systems |
| JSP |
Joint Seismic Program (USA) |
| JUnet |
Japanese University Network |
|
K |
| KACST |
King Abdulaziz City for Science and Technology (Riyadh, Saudi
Arabia) |
| KAO |
Korean Astronomical Observatory |
| kHz |
Kilohertz |
| KMS |
National Survey and Cadastre (Denmark) |
| KOOLAS |
Kootwijk, The Netherlands Laser Station |
| KPGO |
Kokee Park Geophysical Observatory (Kauai, HI) |
| L |
| LAAS |
Local Area Augmentation System |
| LAGEOS |
LAser GEOdynamics Satellite |
| LASSO |
Laser Synchronization from Stationary Orbit |
| LDC |
IGS Local Data Center |
| LDEO |
Lamont-Doherty Earth Observatory (Palisades, NY) |
| LERC |
Lewis Research Center (Cleveland, OH) |
| LGDO |
Lamont-Doherty Geological Observatory (Palisades, NY) |
| LLR |
Lunar Laser Ranging |
| LOD |
Length of day |
| LRA |
Laser Retroreflector Array |
| LRE |
Laser Retroreflector Experiment |
| L+T |
Swiss Federal Office of Topography |
| LURE |
LUnar Ranging Experiment |
|
M |
| MACLAS-1 |
McDonald Laser Station One (2.7 meter telescope) (TX) |
| MACLAS-2 |
McDonald Laser Station Two (MLRS) (TX) |
| MAO |
Main Astronomical Observatory (Ukraine) |
| MATLAS |
Matera, Italy Laser Station |
| MCC |
Mission Control Center (Russia) |
| MCEP |
Mean Celestial Ephemeris Pole |
| MCP |
Micro Channel Plate |
| MDI |
McDonnell Douglas, Inc. |
| MEDLAS |
Mediterranean Laser Campaign |
| MERIT |
Monitoring of Earth Rotation and Intercomparison of Techniques |
| MFEnet |
Magnetic Fusion Energy Network |
| MILnet |
Defense data network |
| MJ |
Millijoule |
| MLRO |
Matera Laser Ranging Observatory (Italy) |
| MLRS |
McDonald Laser Ranging System |
| MOBLAS |
MOBile LASer Ranging System |
| MOM |
Mobile Optical Mount |
| MSL |
Mean Sea Level |
| MSO |
Mount Stromlo (Canberra, NSW,
Australia) |
| MSSSO |
Mount Stromlo and Siding Spring Observatory (Canberra, NSW,
Australia) |
| MSTI |
Miniature Seeker Technology Integration |
| MTLRS |
Modular Transportable Laser Ranging System |
| MTPE |
Mission to Planet Earth (USA) |
| MV |
Mobile VLBI |
| MWG |
Missions Working Group (ILRS) |
|
N |
| NAD |
North American Datum |
| NAO |
National Astronomical Observatory (Tokyo, Japan) |
| NAPEOS |
Navigation Package for Earth Observation Satellites |
| NASCOM |
NASA COMmunications Network |
| NASDA |
National Space Development Agency (Japan) |
| NATMAP |
NATional MAPping |
| NAVSTAR |
Navigation Satellite Timing and Ranging |
| NBSM |
National Bureau of Surveying and Mapping (PRC) |
| NCEDC |
Northern California Earthquake Data Center (USA) |
| NCEP |
National Centers for Environment Prediction (USA) |
| NCL |
University of Newcastle upon Tyne (United Kingdom) |
| NCMN |
National Crustal Motion Network |
| NCSA |
National Center for Supercomputing Applications (USA) |
| NCST |
Naval Center for Space Technology (USA) |
| Nd:YAG |
Neodymium Yttrium Aluminum Garnet |
| NERC |
Natural Environment Research Council (United Kingdom) |
| NEROC |
North East Rotation Observatory Corporation |
| NEWG |
Networks and Engineering Working Group (ILRS) |
| NGRS |
National Geodetic Reference System |
| NGVD |
National Geodetic Vertical Datum |
| NIC |
Network Information Center (NASA Goddard) |
| NICT |
National Institute of Information and Communications Technology
(Japan) |
| NIES |
National Institute for Environmental Studies (Japan) |
| NLRS |
National Laser Ranging System (Orroral, Australia) |
| NLS |
National Land Survey (Sweden) |
| NMA |
Norwegian Mapping Authority |
| NMD |
National Mapping Division (Australia) |
| NOS |
National Ocean Survey |
| NP |
Normal Point |
| NPL |
National Physical Laboratory (India) |
| NPOESS |
National Polar-orbiting Operational Environmental Satellite
System |
| NRAO |
National Radio Astronomy Observatory |
| NRCan |
National Resources of Canada (Ottawa, Canada) |
| NRIAG |
National Research Institute of Astronomy and Geophysics (Egypt) |
| NRT |
Near real time |
| ns |
Nanosecond |
| NSGF |
NERC Space Geodesy Facility
(United Kingdom) |
| NSSDC |
National Space Science Data Center (NASA Goddard) |
| NUVEL |
Northwestern University velocity model |
|
O |
| OASIS |
GIPSY-Orbit Analysis and SImulation Software |
| OCA |
Observatoire de la Cote d'Azur (France) |
| OGT |
Observatoire Géodésique de Tahiti (French Polynesia) |
| ODC |
IGS Operational Data Center |
| OLG |
Observatory Lustbuehel Graz (Austria) |
| ORRLAS |
Orroral, Australia Laser Station |
| ORT |
Optical Ranging Telescope |
| OSGB |
Ordinance Survey of Great Britain |
| OSO |
Onsala Space Observatory (Sweden) |
| OSTA |
Office of Space and Terrestrial Applications (USA) |
| OTAGO |
University of Otago (Dunedin, New Zealand) |
| OUAT |
Olsztyn University of Agriculture and Technology (Poland) |
| OVRO |
Owens Valley Radio Observatory |
|
P |
| PANGA |
Pacific Northwest Geodetic Array (USA) |
| Pan-STARRS |
Panoramic Survey Telescope and Rapid Response System (USA) |
| PAS |
Polish Academy of Sciences |
| PASSCAL |
Program for Array Seismic Studies of the Continental Lithosphere
(USA) |
| PCGIAP |
Permanent Committee for GIS Infrastructure for Asia and the
Pacific |
| PGC |
Pacific Geoscience Center (Canada) |
| PGGA |
Permanent GPS Geodetic Array (Southern California) |
| PI |
Principal Investigator |
| PL |
Phillips Laboratory (USA) |
| PM/UT |
Polar Motion/Universal Time |
| PMSL |
Permanent Service for Mean Sea Level |
| PMT |
Photo Multiplier Tube |
| POD |
Precision orbit determination |
| POLAC |
Paris Observatory Lunar Analysis Center (France) |
| POLARIS |
POLar motion Analysis by Radio Interferometry |
| PPET |
Portable Pico-Second Event Timer |
| PPME |
Pacific Plate Motion Experiment |
| PRAMM |
Planning Research Analysis Marketing and Management Firm (USA) |
| PRARE |
Precise Range and Range-rate Equipment |
| PSI |
Packetnet Systems Interface |
| PSLR |
Portable Satellite Laser Ranging System (Latvia) |
| PSN |
Piano Spazial Nazionale (Italy) |
| PTTI |
Precise Time and Time Interval |
| PULKOVA/RAS |
Astronomical Observatory at Pulkova/Russian Academy of Sciences |
| PW |
Precipitable water |
| PWV |
Precipitable water vapor |
|
Q |
| QL |
Quick-Look |
| QLDAC |
Quick-Look Data Analysis Center (The Netherlands) |
|
R |
| RAS |
Russian Academy of Sciences |
| RCFC&WCD |
Riverside County Flood Control and Water Conservation District
(USA) |
| RDAAC |
Regional GPS Data Acquisition and Analysis Center on Northern
Eurasia |
| RDC |
IGS Regional Data Center |
| RGO |
Royal Greenwich Observatory (Great Britain) |
| RGOLAS |
RGO, Herstmonceux, Great Britain Laser System |
| RINEX |
Receiver INdependent EXchange |
| RIS |
Reflector in Space |
| RISC |
Reduced Instruction-Set Computing |
| RISDE |
Russian Institute of Space Device Engineering |
| RITSS |
Raytheon Information Technology and Scientific Services (USA) |
| RM |
Reference Monument |
| RMS |
Root Mean Square |
| RMT |
Reference MonumenT |
| RNAAC |
IGS Regional Network Associate Analysis Center |
| ROA |
Real Instituto y Observatorio de la Armada (Spain) |
| ROB |
Observatoire Royal de Belgium (Brussels, Belgium) |
| RRA |
RetroReflector Array |
| RRL |
Radio Research Laboratories (Japan) |
| RSA |
Russian Space Agency |
| RSG |
Refraction Study Group (ILRS) |
| RSMAS |
Rosenstiel School of Marine and Atmospheric Science (USA) |
| RSU |
Rivers State University of Science and Technology (Nigeria) |
| RTCM |
Radio Technical Commission for Maritime Services (USA) |
| RTK |
Real Time Kinematic |
|
S |
| SA |
Selective Availability |
| SAAO |
South African Astronomical Observatory |
| SAC-C |
Satelite de Aplicaciones Cientificas-C |
| SAFE |
San Andreas Fault Experiment |
| SAGE |
Strategic Aerosol and Gas Experiment |
| SALRO |
Saudi Arabian Laser Ranging Observatory (Riyadh, Saudi Arabia) |
| SAO |
Smithsonian Astrophysical Observatory |
| SAO |
Shanghai Astronomical Observatory (PRC) |
| SAR |
Synthetic Aperture Radar |
| SC |
Station Coordinates |
| SC |
Sub-Commission |
| SCEC |
Southern California Earthquake Center |
| SCEG |
School of Civil Engineering and Geosciences (United Kingdom) |
| SCIGN |
Southern California Integrated GPS Network |
| SDSC |
San Diego Supercomputer Center |
| SENH |
Solid Earth and Natural Hazards (USA) |
| SETIC |
Selective Time-Interval Counter |
| SEWP |
Scientific and Engineering Workstation Procurement |
| SGAPO |
Space Geodesy and Altimetry Projects Office |
| SGMS |
Space Geodetic Measurement Sites |
| SGP |
Space Geodesy Project |
| SHAO |
Shanghai Observatory (PRC) |
| SHO |
Simosato Hydrographic Observatory (Japan) |
| SHOLAS |
Simosato, Japan Laser Station |
| SINEX |
Software Independent Exchange Format |
| SIO |
Scripps Institution of Oceanography (San Diego, CA) |
| SIRAL |
SAR/Interferometric Radar Altimeter |
| SK |
Statens Kartverk (Norway) |
| SLR |
Satellite Laser Ranging |
| SNR |
Signal-to-noise ratio |
| SOAP |
Single Operator Automation System |
| SOD |
Site Occupation Designator |
| SOPAC |
Scripps Orbit and Permanent Array Center |
| SOR |
Starfire Optical Range (USA) |
| SP |
Signal Processing |
| SPAD |
Single Photon Avalanche Diode |
| SPAN |
Space Physics Analysis Network |
| SPE |
Single Photo Electron |
| SPIE |
International Society for Optics and Photonics |
| SPNLAS |
San Fernando, Spain Laser Station |
| SPWG |
Signal Processing Working Group (ILRS) |
| SRI |
Space Research Institute (Russia) |
| SRIF |
Square Root Information Filter |
| SRS |
Stanford Research Systems |
| SSFPO |
Space Station Freedom Project Office |
| SSL |
Space Science Laboratory (NASA MArshall) |
| SST |
Satellite-to-Satellite Tracking |
| STALAS |
Stationary Laser Station (NASA Goddard) |
| STARSHINE |
Student Tracked Atmospheric Research Satellite for Heuristic
International Networking Experiment |
| STDN |
Spaceflight Tracking and Data Network |
| SUNSAT |
Stellenbosch UNiversity SATellite (South Africa) |
| SV |
Space Vehicle |
| SV |
Station Velocities |
| SWEPOS |
Swedish Permanent GPS Network |
| swisstopo |
Swiss Federal Office of Topography |
| SXAO |
Shaanxi Astronomical Observatory (PRC) |
T |
| TAI |
International Atomic Time |
| TBF |
Time Bias Function |
| TDRSS |
Tracking and Data Relay Satellite System |
| TEC |
Total electron content |
| TEXnet |
Texas Network |
| TFO |
TOPEX/Poseidon Follow-On |
| THEnet |
Texas Higher Education Network |
| TIGO |
Transportable Integrated Geodetic Observatory |
| TIPS |
Tether Physics and Survivability Experiment |
| TIRV |
Tuned Inter-Range Vector |
| TIU |
Time Interval Unit |
| TLRS |
Transportable Laser Ranging System |
| TOPEX |
Ocean TOPography EXperiment |
| T/P |
TOPEX/Poseidon |
| TRF |
Terrestrial Reference Frame |
| TROS |
TRansportable Observation Station |
| TROS |
Transportable Range Observation System |
| TSK |
Tskuba Space Center (Japan) |
| TUM |
Technical University of Munich (Germany) |
| TVDS |
Transportable VLBI Data System |
| TZD |
Tropospheric zenith delay |
|
U |
| UARS |
Upper Atmospheric Research Satellite |
| UB |
University of Bonn (Germany) |
| UCAR |
University Corporation for Atmospheric Research (USA) |
| UFP |
Université de la Polynésie Française (French Polynesia) |
| UFPR |
University Federal de Parana (Brazil) |
| UNAM |
Universidad Nacional Autonoma de Mexico |
| UNAVCO |
University NAVSTAR Consortium |
| UNICANT |
University of Canterbury (Christchurch, New Zealand) |
| UNSA |
Universidad Nacional de San Augustin (Peru) |
| UOSATS |
University of Surrey Satellite (United Kingdom) |
| UPAD |
University of Padova (Italy) |
| UPC |
Polytechnical University of Catalonia (Spain) |
| UPF |
Université de la Polynésie Française
(French Polynesia) |
| URL |
Uniform Resource Locator |
| UT |
Universal Time |
| UTC |
Coordinated Universal Time |
| UTCSR |
University of Texas Center for Space Research |
| UTOPIA |
University of Texas Orbit Processor (USA) |
|
V |
| VCL |
Vegitation Canopy Lidar |
| VLBA |
Very Long Baseline Array |
| VLBI |
Very Long Baseline Interferometry |
| VNIIFTRI |
All-Russian Scientific Research Institute for Physical-Technical
and Radiotechnical Measurements (Russia) |
| VSAT |
Very Small Aperture Terminal |
| VSL |
NMi Van Swinden Laboratorium (The Netherlands) |
|
W |
| WAAS |
Wide area augmentation system |
| WCPT |
West Coast Precision Traverse |
| WEGENER |
Working Group of European Geoscientists for the Establishment
of Networks for Earthquake Research |
| WESTPAC |
Western Pacific Laser Tracking Network Satellite |
| WETLAS |
Wettzell, Germany Laser Station |
| WG |
Working Group |
| WGS |
World Geodetic System |
| WING |
Western Pacific Integrated Network of GPS |
| WLRS |
Wettzell Laser Ranging System (Germany) |
| WPLS |
Western Pacific Laser Tracking Network Satellite |
| WPLTN |
Western Pacific Laser Tracking Network |
| WRMS |
Weighted Root Mean Square |
| WTU |
Wuhan Technical University (PRC) |
| WUT |
Warsaw University of Technology (Poland) |
| WVR |
Water vapor radiometer |
|
X |
| X.25 |
Level II communication protocal for packet |
|
Y |
|
Z |
| ZIMLAS |
Zimmerwald, Switzerland Laser Station |
| ZIMLAT |
Zimmerwald Laser and Astrometric Telescope (Switzerland) |
| ZIPE |
ZentralInstitut der Physik der Erde (Germany) |
| ZND |
Zenith neutral delay |
