Global Navigation Satellite System (GNSS) IGS Analysis Center (AC) Final Orbit/Reference Frame Product from NASA CDDIS

This derived product set consists of Global Navigation Satellite System Final Orbit/Reference Frame Product Summary from the NASA Crustal Dynamics Data Information System (CDDIS). GNSS provide autonomous geo-spatial positioning with global coverage. GNSS data sets from ground receivers at the CDDIS consist primarily of the data from the U.S. Global Positioning System (GPS) and the Russian GLObal NAvigation Satellite System (GLONASS). Since 2011, the CDDIS GNSS archive includes data from other GNSS (Europe’s Galileo, China’s Beidou, Japan’s Quasi-Zenith Satellite System/QZSS, the Indian Regional Navigation Satellite System/IRNSS, and worldwide Satellite Based Augmentation Systems/SBASs), which are similar to the U.S. GPS in terms of the satellite constellation, orbits, and signal structure. Analysis Centers (ACs) of the International GNSS Service (IGS) retrieve GNSS data on regular schedules to produce GNSS satellite and ground receiver clock values. The IGS Analysis Center Coordinator (ACC) uses these individual AC solutions to generate the official IGS final orbit, reference frame, combined satellite and receiver clock, and ERP products. The final AC products consist of daily orbit files, generated on a weekly basis with a delay of approximately 13 days from the last day of the week. All satellite and receiver clock solution files utilize the clock RINEX format and span 24 hours from 00:00 to 23:45 UTC. The solution summary file details information about the generation of the daily final products.

Tags: earth-science-geodetics-solid-earth-coordinate-reference-system-country-regional-coordinate-ref, earth-science-geodetics-solid-earth-coordinate-reference-system-global-coordinate-reference-sys, earth-science-geodetics-solid-earth-ellipsoid-characteristics, earth-science-geodetics-solid-earth-geoid-characteristics, earth-science-geodetics-solid-earth-techniques-gnss-global-navigation-satellite-systems, earth-science-gravity-gravitational-field-solid-earth-control-surveys, earth-science-gravity-gravitational-field-solid-earth-gravity, earth-science-gravity-gravitational-field-solid-earth-polar-motion-annual-elliptical-component, earth-science-gravity-gravitational-field-solid-earth-polar-motion-chandler-circular-component, earth-science-gravity-gravitational-field-solid-earth-rotational-motion-variations-rotational-r, earth-science-gravity-gravitational-field-solid-earth-satellite-orbits-revolution-angle-of-elev, earth-science-gravity-gravitational-field-solid-earth-satellite-orbits-revolution-angle-of-incl, earth-science-gravity-gravitational-field-solid-earth-satellite-orbits-revolution-orbit-type, earth-science-gravity-gravitational-field-solid-earth-satellite-orbits-revolution-orbit-velocit, earth-science-gravity-gravitational-field-solid-earth-satellite-orbits-revolution-orbital-posit, earth-science-tectonics-solid-earth-earthquakes-earthquake-magnitude-intensity, earth-science-tectonics-solid-earth-plate-tectonics-crustal-motion-crustal-motion-direction, earth-science-tectonics-solid-earth-plate-tectonics-crustal-motion-crustal-motion-rate, earth-science-tectonics-solid-earth-plate-tectonics-fault-movement-fault-movement-direction, earth-science-tectonics-solid-earth-plate-tectonics-fault-movement-fault-movement-rate, earth-science-tectonics-solid-earth-plate-tectonics-plate-boundaries, earth-science-tectonics-solid-earth-plate-tectonics-strain
Organization: National Aeronautics and Space Administration