NASA Earthdata CMR + NASA Data Portal2025 · Astronomical catalogue
Satellite Laser Ranging (SLR) International Laser Ranging Service (ILRS) Eccentricity Files from NASA CDDISIn the ILRS network, there are mobile systems and permanent systems. Mobile ILRS systems usually occupy (i.e. are referenced to) a ground monument/mark and have an associated set of non-zero eccentricities. System eccentricities are defined as the offsets (usually less than 15 meters) from the ground monument/mark to the optical reference point of the system (i.e. intersection of axes) and are mea
NASA Earthdata CMR1992 · collection
Earth Orientation Parameters (EOP) products from the International Earth Rotation and Reference Systems Service (IERS) Rapid Service Prediction Center (RSPC) at the US Naval Observatory (USNO, updated sub-daily) from NASA CDDISThe 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 rapid turnaround basis. This service is primarily intended for real-time users and others needing the highest quality EOP information sooner than is available in the IERS final series (Bulletin B) publish
NASA Earthdata CMRcollection
CHAMP atmospheric path delayCHAMP, Atmosphere and Ionosphere
NASA Earthdata CMRcollection
TerraSAR-X Ultra Rapid Science OrbitThis data set features the TerraSAR-X Ultra Rapid Science Orbit (USO).
NASA Earthdata CMRcollection
Satellite Laser Ranging (SLR) data of a global net of sitesThese data represent normal points and partly full rate data of distances from 10 to 30 global distributed sites to the different laser satellites beginning with the launch date. The data density for the different satellites is changing according to the priorities of observations agreed to in the framework of international programmes.
NASA Earthdata CMRcollection
CHAMP Postprocessed Science OrbitThis data set features the CHAMP Postprocessed Science Orbit (PSO).
NASA Earthdata CMRcollection
CHAMP Rapid Science OrbitThis data set features the CHAMP Rapid Science Orbit (RSO).
NASA Earthdata CMRcollection
CHAMP Ultra Rapid Science OrbitThis data set features the CHAMP Ultra Rapid Science Orbit (USO).
NASA Earthdata CMRcollection
CHAMP occultation tableProduct is derived from the first year of CHAMP tracking data.
NASA Earthdata CMRcollection
CHAMP profiles of vertical atmospheric parameterProduct is derived from the first year of CHAMP tracking data.
NASA Earthdata CMRcollection
GRACE-A Level-1B Vector Offset File for SLR ReflectorEdited and decimated from Instruments HR samples to LR samples for Science use.