First assessment of GPS-based reduced dynamic orbit determination on TOPEX/Poseidon

Details First assessment of GPS-based reduced dynamic orbit determination on TOPEX/Poseidon First assessment of GPS-based reduced dynamic orbit determination on TOPEX/Poseidon

Apr 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994georl..21..541y&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 21, no. 7, p. 541-544

Other

33

Error Analysis, Global Positioning System, Orbital Position Estimation, Position Errors, Topex, Poseidon Satellite, Satellite Altimetry, Satellite Tracking

Scientific paper

The reduced dynamic Global Positioning System (GPS) tracking technique has been applied for the first time as part of the GPS experiment on TOPEX/Poseidon. This technique employs local geometric position corrections to reduce orbit errors caused by the mismodeling of satellite forces. Results for a 29-day interval in early 1993 are evaluated through postfit residuals and formal errors, comparison with GPS and laser/DORIS dynamic solutions, comparisons on 6-hr overlaps of adjacent 30-hr data arcs, altimetry closure and crossover analysis. Reduced dynamic orbits yield slightly better crossover agreement than other techniques and appear to be accurate in altitude to about 3 cm RMS.

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