NASA has geodetics datasets that help researchers characterize the shape of Earth and the motion of its components. Access a range of data and data tools such as AppEEARS, Worldview, and Giovanni to make the most of geodetics data.
| Dataset | Version | Platform | Instrument | Temporal Extent | Spatial Extent | Spatial Resolution | Data Format |
|---|---|---|---|---|---|---|---|
| VIIRS/JPSS1 Day/Night Band Resolution Terrain Corrected Geolocation 6 Min L1 Swath 750m NRT | 2.1 | NOAA-20 | VIIRS | 2022-01-01 |
N: 90 S: -90 E: 180 W: -180 |
750 Meters x 750 Meters | netCDF-4 |
| VIIRS/JPSS1 Imagery Resolution Terrain Corrected Geolocation 6 Min L1 Swath 375m NRT | 2.1 | NOAA-20 | VIIRS | 2022-01-01 |
N: 90 S: -90 E: 180 W: -180 |
375 Meters x 375 Meters | netCDF-4 |
| VIIRS/JPSS1 Moderate Resolution Terrain Corrected Geolocation 6 Min L1 Swath 750m NRT | 2.1 | NOAA-20 | VIIRS | 2022-01-01 |
N: 90 S: -90 E: 180 W: -180 |
750 Meters x 750 Meters | NetCDF |
| Suomi-NPP VIIRS Level-1A Geolocation Data, version 2 | 2 | Suomi-NPP | VIIRS | 2012-01-02 to Present |
N: 90 S: -90 E: 180 W: -180 |
netCDF-4 | |
| NOAA-20 VIIRS Level-1 Geolocation Data, version 2 | 2 | NOAA-20 | VIIRS | 2017-11-29 to Present |
N: 90 S: -90 E: 180 W: -180 |
netCDF-4 | |
| VIIRS/NPP Day/Night Band Terrain Corrected Geolocation L1 6-Min Swath 750 m | 2 | Suomi-NPP | VIIRS | 2012-01-19 to Present |
N: 90 S: -90 E: 180 W: -180 |
750 Meters x 750 Meters | NetCDF-4 |
| VIIRS/NPP Imagery Resolution Terrain Corrected Geolocation 6-Min L1 Swath 375 m | 2 | Suomi-NPP | VIIRS | 2012-01-19 to Present |
N: 90 S: -90 E: 180 W: -180 |
netCDF-4 | |
| VIIRS/NPP Moderate Resolution Terrain-Corrected Geolocation L1 6-Min Swath 750 m | 2 | Suomi-NPP | VIIRS | 2012-01-19 to Present |
N: 90 S: -90 E: 180 W: -180 |
750 Meters x 750 Meters | netCDF-4 |
| GRACE/GRACE-FO Level-4 Monthly Gravitational-Rotational-Deformation version 01 from NASA MEaSUREs HOMaGE | 1.0 | GRACE-FO, GRACE | GRACE-FO MWI, GRACE INTERFEROMETER | 2002-04-16 to Present |
N: 90 S: -90 E: 180 W: -180 |
0.5 Decimal Degrees x 0.5 Decimal Degrees | netCDF-4 |
| Global Navigation Satellite Systems (GNSS) Real-Time Orbit Products from NASA CDDIS | 1 | GLONASS, GPS | GPS, GLONASS | 2008-10-05 to Present |
N: 90 S: -90 E: 180 W: -180 |
RTCM SSR (State Space Representation) | |
| Terra MODIS Level-1A Geolocation Data, version 1 | 1 | Terra | MODIS | 2000-02-24 to Present |
N: 90 S: -90 E: 180 W: -180 |
netCDF-4 | |
| Aqua MODIS Level-1A Geolocation Data, version 1 | 1 | Aqua | MODIS | 2002-07-04 to Present |
N: 90 S: -90 E: 180 W: -180 |
netCDF-4 | |
| NOAA-21 VIIRS Level-1A Geolocation Data, version 1 | 1 | NOAA-21 | VIIRS | 2022-11-10 to Present |
N: 90 S: -90 E: 180 W: -180 |
netCDF-4 | |
| Global Navigation Satellite System (GNSS) International Terrestrial Reference Frame (ITRF) 2020 products (IGS20) from NASA CDDIS | 1 | GPS | GPS | 1983-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
SINEX | |
| Satellite Laser Ranging (SLR) Satellite Orbit Products from NASA CDDIS | 1 | GROUND STATIONS | SLR | 1992-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
Standard Product 3 (SP3) | |
| CDDIS MEaSUREs SESES products Change in Water Storage Time Series | 1 | GLONASS, GPS, GROUND STATIONS | GLONASS RECEIVERS, GPS, GNSS RECEIVER | 1992-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
SINEX | |
| CDDIS MEaSUREs SESES GNSS products Daily 5-minute Precise Point Positioning (PPP) Tropospheric Estimates | 1 | GLONASS, GPS, GROUND STATIONS | GLONASS RECEIVERS, GPS, GNSS RECEIVER | 1992-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
SOPAC GLOBK ATS Model | |
| CDDIS MEaSUREs SESES products weekly displacement grids time series | 1 | GLONASS, GPS, GROUND STATIONS | GLONASS RECEIVERS, GPS, GNSS RECEIVER | 1992-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
netCDF, PDF, MP4 | |
| CDDIS MEaSUREs SESES products Weekly Coseismic Offset Time Series | 1 | GLONASS, GPS, GROUND STATIONS | GLONASS RECEIVERS, GPS, GNSS RECEIVER | 1992-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
Text | |
| CDDIS MEaSUREs SESES products Plate Boundary Aseismic Transient Deformation | 1 | GLONASS, GPS, GROUND STATIONS | GLONASS RECEIVERS, GPS, GNSS RECEIVER | 1992-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
ASCII, PDF | |
| CDDIS MEaSUREs SESES products Horizontal Strain Rate Grids | 1 | GLONASS, GPS, GROUND STATIONS | GLONASS RECEIVERS, GPS, GNSS RECEIVER | 1992-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
netCDF, PDF | |
| CDDIS MEaSUREs SESES products High-rate Earthquake Displacement | 1 | GLONASS, GPS, GROUND STATIONS | GLONASS RECEIVERS, GPS, GNSS RECEIVER | 1992-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
text, image, metadata, and binary data files | |
| CDDIS MEaSUREs SESES products 3D station velocity estimates | 1 | GLONASS, GPS, GROUND STATIONS | GLONASS RECEIVERS, GPS, GNSS RECEIVER | 1992-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
SINEX header, text file | |
| Very Long Baseline Interferometry (VLBI) Positions Products from NASA CDDIS | 1 | GROUND STATIONS | VLBI Station | 1980-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
Software INdependent EXchange (SINEX) | |
| Miscellaneous Information from CDDIS | 1 | SATELLITES | DORIS GROUND STATION BEACON, VLBI Station, GNSS RECEIVER, LASER REFLECTOR | 1982-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
A Global Navigation Satellite System (GNSS) is a space geodesy technology that provides autonomous geospatial positioning around the world. One such system is the U.S. Global Positioning System (GPS), which is made up of 24 satellites, each traveling in a 12-hour orbit. A similar system is the GLObal NAvigation Satellite System (GLONASS) constellation consisting of 24 satellites. Each system is designed so that multiple satellites are within range of any point on Earth in order to precisely determine its location. GNSS data can used to determine location and positioning around Earth as well as to study geophysics, the motions of tectonic plates and their displacements due to earthquakes, Earth orientation, and atmospheric properties among many other things.
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