1ST ASSESSMENT OF GPS-BASED REDUCED DYNAMIC ORBIT DETERMINATION ON TOPEX POSEIDON

Citation
Tp. Yunck et al., 1ST ASSESSMENT OF GPS-BASED REDUCED DYNAMIC ORBIT DETERMINATION ON TOPEX POSEIDON, Geophysical research letters, 21(7), 1994, pp. 541-544
Citations number
12
Categorie Soggetti
Geosciences, Interdisciplinary
ISSN journal
00948276
Volume
21
Issue
7
Year of publication
1994
Pages
541 - 544
Database
ISI
SICI code
0094-8276(1994)21:7<541:1AOGRD>2.0.ZU;2-0
Abstract
The reduced dynamic GPS tracking technique has been applied for the fi rst time as part of the GPS experiment on TOPEX/Poseidon. This techniq ue employs local geometric position corrections to reduce orbit errors caused by the mis-modeling of satellite forces. Results for a 29-day interval in early 1993 are evaluated through postfit residuals and for mal errors, comparison with GPS and laser/DORIS dynamic solutions, com parisons on 6-hr overlaps of adjacent 30-hr data arcs, altimetry closu re and crossover analysis. Reduced dynamic orbits yield slightly bette r crossover agreement than other techniques and appear to be accurate in altitude to about 3 cm RMS.