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Geodetics Data Access and Tools
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.
Featured Geodetics Observation Method: GNSS
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.
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.
Join us on Wednesday, July 22, 2015 at 2pm ET to learn how to discover and access the real-time Global Navigation Satellite System (GNSS) data!
Join us to learn more about Global Navigation Satellite System (GNSS) radio occultation science and applications! We will highlight science impacts in the areas of numerical weather prediction, forecasting cyclone genesis, and space weather.
Join us on Sept. 28 to learn about the NASA Making Earth System Data Records (ESDR) for Use in Research Environments (MEaSUREs) Extended Solid Earth Science ESDR System (ESESES) project, whose Global Navigation Satellite System (GNSS)-derived data products enable research on tectonic motion, crustal deformation, earthquakes, tsunamis, sea level rise, extreme weather, and more!
This update to NASA's Crustal Dynamics Data Information System (CDDIS) archive makes accessing all RINEX data easier and more transparent for the Global Navigation Satellite System (GNSS) user community.
Geodetics Datasets
| Dataset | Platforms | Instruments | Temporal Extent | Location Keywords | Spatial Extent | Data Format |
|---|---|---|---|---|---|---|
| Daily 30-second Combined GPS Broadcast Ephemeris data | NOT APPLICABLE | 1992-01-01 to Present | N: 90 S: -90 E: 180 W: -180 | RINEX V3 | ||
| Daily 30-second GLONASS (GLObal NAvigation Satellite System) broadcast ephemeris data from NASA CDDIS | SATELLITES | NOT APPLICABLE | 1992-01-01 | CRUST | N: 90 S: -90 E: 180 W: -180 | RINEX V2 |
| Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) Data and Products Supporting Information from NASA CDDIS | OSTM/JASON-2, GROUND STATIONS, CRYOSAT-2, SENTINEL-3A, SARAL, HY2-A, JASON-3 | DORIS, DORIS GROUND STATION BEACON | 1992-01-01 to Present | GLOBAL | N: 90 S: -90 E: 180 W: -180 | ASCII |
| Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) Data Cycle from NASA CDDIS | CRYOSAT-2, GROUND STATIONS, HY2-A, JASON-1, OSTM/JASON-2, SPOT-2, SPOT-3, SPOT-4, SPOT-5, TOPEX/POSEIDON | DORIS GROUND STATION BEACON | 1990-03-31 to Present | GLOBAL | N: 90 S: -90 E: 180 W: -180 | ASCII |
| Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) Geocenter Products from NASA CDDIS | GEODYNAMIC STATIONS | 1990-03-31 to Present | GLOBAL | N: 90 S: -90 E: 180 W: -180 | geocenter | |
| Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) Ionosphere Products from NASA CDDIS | GEODYNAMIC STATIONS | 2001-01-01 to Present | GLOBAL | N: 90 S: -90 E: 180 W: -180 | SINEX | |
| Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) Orbit Products from NASA CDDIS | GEODYNAMIC STATIONS | 1992-11-04 to Present | GLOBAL | N: 90 S: -90 E: 180 W: -180 | SINEX | |
| Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) Positions Products from NASA CDDIS | CRYOSAT-2, GROUND STATIONS, HY2-A, JASON-1, OSTM/JASON-2, SPOT-2, SPOT-3, SPOT-4, SPOT-5, TOPEX/POSEIDON | DORIS GROUND STATION BEACON | 1990-03-31 to Present | GLOBAL | N: 90 S: -90 E: 180 W: -180 | Station Coordinate Difference (STCD) |
| Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) RINEX Data from NASA CDDIS | GROUND STATIONS | 2003-01-22 to Present | N: 90 S: -90 E: 180 W: -180 | RINEX | ||
| Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) RINEX data from NASA CDDIS | CRYOSAT-2, GROUND STATIONS, HY2-A, OSTM/JASON-2 | DORIS GROUND STATION BEACON | 2008-06-20 to Present | GLOBAL | N: 90 S: -90 E: 180 W: -180 | RINEX |
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