Search datasets
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This dataset consists of ground-based Global Navigation Satellite System (GNSS) GPS Broadcast Ephemeris Data (daily files) from the NASA Crustal Dynamics Data Information System (CDDIS). GNSS...
Search relevance: 1.00 | Views last month: 17 | Catalog Last Checked: October 21, 2026 at 12:14 AM -
This dataset consists of ground-based Global Navigation Satellite System (GNSS) GPS Broadcast Ephemeris Data (hourly files) from the NASA Crustal Dynamics Data Information System (CDDIS). GNSS...
Search relevance: 1.00 | Views last month: 15 | Catalog Last Checked: October 21, 2026 at 12:14 AM -
This derived product set consists of Global Navigation Satellite System satellite orbit products (daily files, generated daily) from the real-time IGS analysis center submissions available from...
Search relevance: 1.00 | Views last month: 13 | Catalog Last Checked: October 21, 2026 at 12:13 AM -
The IERS Rapid Service/Prediction Center is the product center of the International Earth Rotation and Reference Systems Service responsible for providing Earth orientation parameters (EOPs) on a...
Search relevance: 1.00 | Views last month: 12 | Catalog Last Checked: October 21, 2026 at 12:09 AM -
This dataset consists of ground-based multi-GNSS (Global Navigation Satellite System) Broadcast Ephemeris Data. GNSS satellites provide autonomous geo-spatial positioning with global coverage....
Search relevance: 1.00 | Views last month: 11 | Catalog Last Checked: October 21, 2026 at 01:04 AM -
This dataset consists of ground-based Global Navigation Satellite System (GNSS) Observation Data (1-second sampling, sub-hourly files) from the NASA Crustal Dynamics Data Information System...
Search relevance: 1.00 | Views last month: 11 | Catalog Last Checked: October 21, 2026 at 12:14 AM -
Global Navigation Satellite System (GNSS) data consists of the U.S. Global Positioning System (GPS) and the Russian GLObal NAvigation Satellite System (GLONASS) (plus other international systems)...
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: October 21, 2026 at 12:22 AM -
This derived product set consists of Global Navigation Satellite System Final Combined Station Positions/Velocities Product available from the Crustal Dynamics Data Information System (CDDIS)....
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: October 21, 2026 at 12:12 AM -
“The ILRS contribution to ITRF2020 consists of a pair of time series of weekly and bi-weekly station position estimates along with daily and 3-day averaged Earth Orientation Parameters (X-pole,...
Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: October 20, 2026 at 11:55 PM -
This product contains a time series of clock biases for healthy satellites in the GPS constellation that are accumulated every minute throughout the day. In addition, formal 1-sigma uncertainties...
Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: October 20, 2026 at 11:40 PM -
This dataset consists of ground-based Global Navigation Satellite System (GNSS) Mixed Broadcast Ephemeris Data (daily files) from the NASA Crustal Dynamics Data Information System (CDDIS). GNSS...
Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: October 21, 2026 at 12:14 AM -
Very Long Baseline Interferometry (VLBI) is a geometric technique: it measures the time difference between the arrival at two Earth-based antennas of a radio wavefront emitted by a distant quasar....
Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: October 21, 2026 at 12:09 AM -
This dataset consists of ground-based Global Navigation Satellite System (GNSS) Combined Broadcast Ephemeris Data (daily files of all distinct navigation messages received in one day) from the...
Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: October 21, 2026 at 12:14 AM -
Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) Cumulative Station Position Product from the NASA Crustal Dynamics Data Information System (CDDIS). DORIS is a...
Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: October 21, 2026 at 12:13 AM -
This derived product set consists of Global Navigation Satellite System Final Satellite and Receiver Clock Product (30-second granularity, daily files, generated weekly) from the NASA Crustal...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: October 21, 2026 at 12:14 AM -
This dataset consists of ground-based Global Navigation Satellite System (GNSS) Beidou Broadcast Ephemeris Data (sub-hourly files) from the NASA Crustal Dynamics Data Information System (CDDIS)....
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: October 21, 2026 at 12:14 AM -
This dataset consists of ground-based Global Navigation Satellite System (GNSS) Galileo Broadcast Ephemeris Data (daily files) from the NASA Crustal Dynamics Data Information System (CDDIS). GNSS...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: October 21, 2026 at 12:14 AM -
This derived product set consists of Global Navigation Satellite System satellite and receiver clock combination product (30-second granularity, daily files, generated daily) from the real-time...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: October 21, 2026 at 12:13 AM -
This dataset consists of ground-based Global Navigation Satellite System (GNSS) Beidou Broadcast Ephemeris Data (daily files) from the NASA Crustal Dynamics Data Information System (CDDIS). GNSS...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: October 21, 2026 at 12:14 AM -
This derived product set consists of Global Navigation Satellite System Final Ionosphere Vertical Total Electron Content (VTEC) product (daily files) from the NASA Crustal Dynamics Data...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: October 21, 2026 at 12:12 AM
