Precise orbit determination and sea-surface topography from ERS-1

Details Precise orbit determination and sea-surface topography from ERS-1 Precise orbit determination and sea-surface topography from ERS-1

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995adspr..16..109m&link_type=abstract

Advances in Space Research, Volume 16, Issue 12, p. 109-113.

Statistics

Computation

Scientific paper

Results of ERS - 1 orbit refinement procedures for long-arcs are summarised with particular reference to gravity field modelling and sea-surface topography. Long arcs from the three day and thirty - five day repeat cycles have been used to refine the earth's gravity field constrained by the JGM-2 covariance matrix and simultaneously to solve for the quasi - stationary sea - surface topography. Orbital computations are presented for arcs not included within the refinement process with improvements identified through rms of fit to laser, altimeter and single satellite crossover data. Additional results utilising dual crossovers with TOPEX / POSEIDON in a full dynamic process are also presented. In particular, reference is made to the relative altimeter biases between the respective satellites and the characteristics of the orbital adjustment through inclusion of dual crossover data.

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