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First assessment of GPS‐based reduced dynamic orbit determination on TOPEX/Poseidon
Author(s) -
Yunck T. P.,
Bertiger W. I.,
Wu S. C.,
BarSever Y. E.,
Christensen E. J.,
Haines B. J.,
Lichten S. M.,
Muellerschoen R. J.,
Vigue Y.,
Willis P.
Publication year - 1994
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/94gl00010
Subject(s) - geodesy , global positioning system , doris (gastropod) , satellite , altimeter , orbit (dynamics) , orbit determination , remote sensing , satellite laser ranging , altitude (triangle) , geology , physics , mathematics , computer science , optics , laser , laser ranging , aerospace engineering , astronomy , geometry , telecommunications , engineering
The reduced dynamic 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.