171 datasets found
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Federal
Multi-Global Navigation Satellite System (GNSS) Broadcast Ephemeris Data (daily files) from NASA CDDIS
National Aeronautics and Space Administration —
This dataset consists of ground-based multi-GNSS (Global Navigation Satellite System) Broadcast Ephemeris Data. GNSS satellites provide autonomous geo-spatial... -
Federal
General Archive Information from NASA CDDIS
National Aeronautics and Space Administration —
The Crustal Dynamics Data Information System (CDDIS) supports the space geodesy and geodynamics community through NASA's Space Geodesy Project as well as NASA's Earth... -
Federal
Ground-Based Global Navigation Satellite System (GNSS) GPS real-time POD Clock Corrections (60-second sampling, 60-second files) from NASA CDDIS
National Aeronautics and Space Administration —
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,... -
Federal
Global Navigation Satellite System (GNSS) IGS Analysis Center (AC) Ionosphere Vertical Total Electron Content (VTEC) Product from NASA CDDIS
National Aeronautics and Space Administration —
This derived product set consists of Global Navigation Satellite System Final Ionosphere Vertical Total Electron Content (VTEC) product (daily files) from the NASA... -
Federal
Ground-Based Satellite Laser Ranging (SLR) Observation Data (normal points, hourly files) from NASA CDDIS
National Aeronautics and Space Administration —
This dataset consists of ground-based Satellite Laser Ranging observation data (normal points, hourly files) from the NASA Crustal Dynamics Data Information System... -
Federal
Combined GPS Broadcast Ephemeris Data (30-second sampling, hourly files) from NASA CDDIS
National Aeronautics and Space Administration —
This dataset consists of ground-based Global Navigation Satellite System (GNSS) Combined Broadcast Ephemeris Data (hourly files of all distinct navigation messages... -
Federal
Supporting Information for Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) Data and Products from NASA CDDIS
National Aeronautics and Space Administration —
Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) Data (multi-day files) from the NASA Crustal Dynamics Data Information System (CDDIS). DORIS... -
Federal
Very Long Baseline Interferometry (VLBI) Celestial Reference Frame (CRF) solution products from NASA CDDIS
National Aeronautics and Space Administration —
Celestial Reference Frame (CRF) product derived from analysis of Very Long Baseline Interferometry (VLBI) data. These products are the generated by analysis centers... -
Federal
Ground-Based Global Navigation Satellite System (GNSS) Galileo real-time POD Attitude Quaternions (30-second sampling, 60-second files) from NASA CDDIS
National Aeronautics and Space Administration —
This product contains a time series of attitude quaternion components for healthy satellites in the Galileo constellation that are accumulated every minute throughout... -
Federal
Ground-Based Global Navigation Satellite System (GNSS) GPS real-time POD Clock Corrections (1-second sampling, 60-second files) from NASA CDDIS
National Aeronautics and Space Administration —
This product contains a high-rate time series of clock biases for healthy satellites in the GPS constellation that are accumulated every minute throughout the day. In... -
Federal
Ground-Based Global Navigation Satellite System (GNSS) Data (1-second sampling, real-time streams) from NASA CDDIS
National Aeronautics and Space Administration —
Global Navigation Satellite System (GNSS) real-time 1 to multi-second sampled data available from the Crustal Dynamics Data Information System (CDDIS). Global... -
Federal
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
National Aeronautics and Space Administration —
Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) Station Position Product for Precise Orbit Determination from the NASA Crustal Dynamics Data... -
Federal
CDDIS MEaSUREs SESES products 3D station velocity estimates
National Aeronautics and Space Administration —
Making Earth System Data Records for Use in Research Environments (MEaSUREs) empowers the research community to participate in developing and generating data products... -
Federal
Global Navigation Satellite System (GNSS) IGS Final Combined Set of Station Coordinates Product from NASA CDDIS
National Aeronautics and Space Administration —
This derived product set consists of Global Navigation Satellite System Final Combined Station Positions/Velocities (no covariance matrix) Product available from the... -
Federal
Ground-Based Global Navigation Satellite System (GNSS) Quasi-Zenith Satellite System (QZSS) Broadcast Ephemeris Data (sub-hourly files) from NASA CDDIS
National Aeronautics and Space Administration —
This dataset consists of ground-based Global Navigation Satellite System (GNSS) Quasi-Zenith Satellite System (QZSS) Broadcast Ephemeris Data (sub-hourly files) from... -
Federal
Very Long Baseline Interferometry (VLBI) Daily Intensive Solution Product (DSNI)
National Aeronautics and Space Administration —
The daily Intensive solution files in SINEX format are analysis products that are mainly designed for combination, for both within the IVS and with other space... -
Federal
Global Navigation Satellite System (GNSS) IGS Ultra-Rapid Orbit Solution Comparison Summary Product from NASA CDDIS
National Aeronautics and Space Administration —
This derived product set consists of Global Navigation Satellite System Rapid Orbit/Reference Frame Product Summary from the NASA Crustal Dynamics Data Information... -
Federal
Very Long Baseline Interferometry (VLBI) Daily SINEX Independent Solution product (DSNX) from NASA CDDIS
National Aeronautics and Space Administration —
The daily solution files are an analysis product that provides estimates of Earth orientation and site positions for each 24-hour session, the covariance matrix of... -
Federal
Ground-Based Global Navigation Satellite System (GNSS) GLObal NAvigation Satellite System (GLONASS) Hatanaka-Compressed Observation Data (30-second sampling, daily files) from NASA CDDIS
National Aeronautics and Space Administration —
GNSS receivers collect the signals from orbiting satellites to determine their ___location in three dimensions and calculate precise time. GNSS receivers detect, decode,... -
Federal
Ground-Based Global Navigation Satellite System (GNSS) Compact Observation Data (30-second sampling, daily, 24 hour files) from NASA CDDIS
National Aeronautics and Space Administration —
This dataset consists of ground-based Global Navigation Satellite System (GNSS) Compact Observation Data (30-second sampling, daily, 24 hour files) from the NASA...
171 datasets found