We are in the process of migrating all NASA Earth science data sites into Earthdata from now until end of 2026. Not all NASA Earth science data and resources will appear here until then. Thank you for your patience as we make this transition.
Read about the Web Unification Project
Rotational Rate/Speed Data Access and Tools
Rotational Rate/Speed Datasets
| Dataset | Platforms | Instruments | Temporal Extent | Location Keywords | Spatial Extent | Data Format |
|---|---|---|---|---|---|---|
| Global Navigation Satellite System (GNSS) IGS Ultra-Rapid Combined Earth Rotation Parameters (ERP) Product from NASA CDDIS | Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS | Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P | 1992-01-01 to Present | GLOBAL | N: 90 S: -90 E: 180 W: -180 | IGS ERP |
| Global Navigation Satellite System (GNSS) IGS Ultra-Rapid Combined Orbit Solution Product (sub-daily files, generated 4 times/day) from NASA CDDIS | Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS | Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P | 1992-01-01 to Present | GLOBAL | N: 90 S: -90 E: 180 W: -180 | extended standard product-3 (SP3c) |
| Global Navigation Satellite System (GNSS) IGS Ultra-Rapid Combined Orbit Solution Summary Product from NASA CDDIS | Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS | Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P | 1992-01-01 to Present | GLOBAL | N: 90 S: -90 E: 180 W: -180 | Text format, UNIX compressed ASCII |
| Global Navigation Satellite System (GNSS) IGS Ultra-Rapid Orbit Solution Comparison Summary Product from NASA CDDIS | Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS | Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P | 1992-01-01 to Present | GLOBAL | N: 90 S: -90 E: 180 W: -180 | Text format, UNIX compressed ASCII |
| Global Navigation Satellite System (GNSS) IGS Weekly Ionosphere Vertical Total Electron Content (VTEC) Grid Validation Product from NASA CDDIS | Beidou, Galileo, GLONASS, GPS, GROUND STATIONS, QZSS, IRNSS, SBAS | Beidou P, Galileo P, GLONASS P, GPSP, GNSS, QZSS P, IRNSS P, SBAS P | 1998-01-01 to Present | GLOBAL | N: 90 S: -90 E: 180 W: -180 | IONEX (IONosphere map EXchange) |
| Ground-Based Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) Cumulative Station Position Product from NASA CDDIS | OSTM/JASON-2, GROUND STATIONS, CRYOSAT-2, SENTINEL-3A, SARAL, HY2-A, JASON-3, ENVISAT, TOPEX/POSEIDON, JASON-1, SPOT-2, SPOT-3, SPOT-4, SPOT-5 | DORIS, DORIS GROUND STATION BEACON | 1992-01-01 to Present | GLOBAL | N: 90 S: -90 E: 180 W: -180 | SINEX |
| Ground-Based Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) Extension of the International Terrestrial Reference Frame (ITRF) for Precise Orbit Determination (DPOD) from NASA CDDIS | OSTM/JASON-2, GROUND STATIONS, CRYOSAT-2, SENTINEL-3A, SARAL, HY2-A, JASON-3, ENVISAT, TOPEX/POSEIDON, JASON-1, SPOT-2, SPOT-3, SPOT-4, SPOT-5 | DORIS, DORIS GROUND STATION BEACON | 1992-01-01 to Present | GLOBAL | N: 90 S: -90 E: 180 W: -180 | IDS internal DPOD format |
| Ground-Based Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) IDS Coordinates of the Terrestrial Reference Frame (TRF) origin (Geocenter) Time Series Product from NASA CDDIS | OSTM/JASON-2, GROUND STATIONS, CRYOSAT-2, SENTINEL-3A, SARAL, HY2-A, JASON-3, ENVISAT, TOPEX/POSEIDON, JASON-1, SPOT-2, SPOT-3, SPOT-4, SPOT-5, SENTINEL-3B | DORIS, DORIS GROUND STATION BEACON | 1992-01-01 to Present | GLOBAL | N: 90 S: -90 E: 180 W: -180 | Geocenter |
| Ground-Based Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) IDS Earth Orientation Parameters (EOP) Time Series Product from NASA CDDIS | GROUND-BASED OBSERVATIONS | DORIS | 1992-01-01 to Present | GLOBAL | N: 90 S: -90 E: 180 W: -180 | EOP |
| Ground-Based Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) IDS Ionospheric Product from NASA CDDIS | GROUND STATIONS, ENVISAT, TOPEX/POSEIDON, JASON-1, SPOT-2, SPOT-4, SPOT-5, SENTINEL-3B | DORIS GROUND STATION BEACON, DORIS | 1992-01-01 to Present | GLOBAL | N: 90 S: -90 E: 180 W: -180 | SINEX |
SHOWING 10 OF 158
Frequently Asked Questions
Earthdata Forum
Our online forum provides a space for users to browse thousands of FAQs about research needs, data, and data applications. You can also submit new questions for our experts to answer.
Submit Questions to Earthdata Forumand View Expert Responses