Precise ERS-1 orbit calculation

Details Precise ERS-1 orbit calculation Precise ERS-1 orbit calculation

Dec 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995bgeod..69..192a&link_type=abstract

Bulletin Géodésique, Volume 69, Issue 4, pp.192-199

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Scientific paper

This analysis was performed with the GEOSAT software developed at NDRE for high-precision analysis of satellite tracking and VLBI data for geodetic and geodynamic applications. For applications to ERS-1, a realistic surface force model is used together with the Jacchia 77 atmospheric model, semi-daily drag coefficients, a 1-cpr sinusoidal along-track acceleration, and the GSFC JGM-2 gravity model. ERS-1 orbits have been derived for 5.5-day arcs of laser tracking data between July 6 and August 12, 1992. Results from overlapping orbits and comparison with precise D-PAF orbits indicate an orbital accuracy of 10 15 cm in the radial direction, ~ 60 cm in the along-track direction and ~ 15 cm in the cross-track direction.

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