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Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) Positions Products from NASA CDDIS

Published by CDDIS | National Aeronautics and Space Administration | Catalog Last Checked: May 18, 2026 at 03:41 PM | Dataset Last Updated: May 11, 2026
Station position and velocity solutions (weekly and cumulative) in Software INdependent EXchange (SINEX) format derived from analysis of Doppler Orbitography by Radiopositioning Integrated on Satellite (DORIS) data. The solutions include daily values of Earth Orientation Parameters (EOPs). These products are the generated by analysis centers in support of the International DORIS Service (IDS). Time series of station coordinate solutions in Station Coordinate Difference (STCD) are also generated by the IDS analysis centers. Weekly solutions represent the IDS contribution to the International Terrestrial Reference Frame (ITRF) determination.

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