TOPEX orbit determination by solving gravity parameters with multiple arc data

Details TOPEX orbit determination by solving gravity parameters with multiple arc data TOPEX orbit determination by solving gravity parameters with multiple arc data

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986asdy.conf.1119w&link_type=abstract

IN: Astrodynamics 1985; Proceedings of the Conference, Vail, CO, August 12-15, 1985. Part 2 (A86-43201 20-12). San Diego, CA, Un

Astronomy and Astrophysics

Astronomy

Gravitational Fields, Maritime Satellites, Ocean Surface, Orbital Position Estimation, Radar Tracking, Satellite Orbits, Algorithms, Dynamic Models, Equations Of Motion, Global Positioning System, Legendre Functions, Satellite-Borne Instruments

Scientific paper

Multiple arc data from repeated ground track are combined to reduce the error due to gravity field uncertainty in the determination of TOPEX orbit. The TOPEX dynamics is modeled with relatively few gravity parameters to account for the effect of the local gravity field. The gravity parameters are common to all arcs. The estimation algorithm uses the Householder transformation to combine multiple arc data and solve for the gravity parameters. The earth gravity field can be recovered with very modest amount of calculation.

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