Abstract
High precision geodetic applications of the Global Positioning System (GPS) require highly precise ephemerides of the GPS satellites. An accurate model for the non-gravitational forces on the GPS satellites is a key to high quality GPS orbit determination, especially in long arcs. In this paper the effect of the satellite solar panel orientation error is investigated. These effects are approximated by empirical functions to model the satellite attitude variation in long arc orbit fit. Experiments show that major part of the long arc GPS orbit errors can be accommodated by introducing a periodic variation of the satellite solar panel orientation with respect to the satellite-Sun direction, the desired direction for solar panel normal vector, with an amplitude of about 1 degree and with a frequency of once per orbit revolution.
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Kuang, D., Rim, H.J., Schutz, B.E. et al. Modeling GPS satellite attitude variation for precise orbit determination. Journal of Geodesy 70, 572–580 (1996). https://doi.org/10.1007/BF00867865
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DOI: https://doi.org/10.1007/BF00867865