Laser ranging error budget for the Topex/Poseidon satellite

Details Laser ranging error budget for the Topex/Poseidon satellite Laser ranging error budget for the Topex/Poseidon satellite

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apopt..29.3590s&link_type=abstract

Applied Optics (ISSN 0003-6935), vol. 29, Sept. 1, 1990, p. 3590-3596.

Physics

Optics

2

Error Analysis, Laser Ranger/Tracker, Poseidon Satellite, Range Errors, Satellite Tracking, Topex, Atmospheric Refraction, French Space Program, Nasa Space Programs, Optical Radar, Prediction Analysis Techniques, Retroreflectors, Satellite Orbits

Scientific paper

A laser ranging error budget is detailed, and a specific error budget is derived for the Topex/Poseidon satellite. A ranging uncertainty of 0.76 cm is predicted for Topex/Poseidon at 20 deg elevation using the presently designed laser retroreflector array and only modest improvements in present system operations. Atmospheric refraction and satellite attitude effects cause the predicted range error to vary with satellite elevation angle from 0.71 cm at zenith to 0.76 cm at 20 deg elevation. This a priori error budget compares well with the about 1.2-cm rms a posteriori polynomial orbital fit using existing data taken for an extant satellite of similar size and orbit.

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