Routine operational and high-precision orbit determination of envisat

Details Routine operational and high-precision orbit determination of envisat Routine operational and high-precision orbit determination of envisat

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003adspr..31.1953z&link_type=abstract

Advances in Space Research, Volume 31, Issue 8, p. 1953-1958.

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Scientific paper

ESA's Earth observation satellite Envisat was successfully launched on 1 March 2002 by an Ariane-5 launcher, and ESOC immediately took over the task of determining and predicting the orbit using S-band tracking data, and optimising the manoeuvre sequence to bring the spacecraft into an orbit accurately phased with ERS-2. On-board, Envisat carries, among others, a radar altimeter, a DORIS instrument and a laser retro-reflector array (SLR). Data from these instruments are being used at ESOC for high-precision orbit determination, for verification of the routine orbit determination and for cross-comparison with orbits computed on-board by the DORIS navigator and with those delivered with the Envisat products. This paper presents the first consolidated results obtained for Envisat routine and high-precision orbit determination. All orbit determination and control activities were performed with the software package NAPEOS, which was developed in-house.

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