Study on reduced-dynamic orbit determination of low Earth orbiters

Bao-min Han

doi:10.1117/12.775231

10 November 2007 Study on reduced-dynamic orbit determination of low Earth orbiters

Bao-min Han

Proceedings Volume 6795, Second International Conference on Space Information Technology; 679565 (2007) https://doi.org/10.1117/12.775231
Event: Second International Conference on Spatial Information Technology, 2007, Wuhan, China

Abstract

Some orbit determination methods using onboard GPS Observations were discussed firstly in this paper, especially the principle and mathematical model of reduced-dynamic Precise Orbit Determination (POD) of Low Earth Satellite (LEO) based on undifferenced spaceborne dual-frequency GPS data. Then a weeklong (from July 28, 2003 to August 3,2003) dual-frequency onboard GPS observation from CHAMP satellite was computed using reduced-dynamic POD. Compared with TUM solutions, our CHAMP orbiting results of one week using reduced dynamic POD method are within 8 centimeters, which can meet the requirements of some higher precision orbit satellite orbits. In order to obtain high precision orbiting results, the impact of different gravity models and proper interval of pseudo-stochastic-pulses on the orbit determination accuracy were analyzed as well.

Citation Download Citation

Bao-min Han "Study on reduced-dynamic orbit determination of low Earth orbiters", Proc. SPIE 6795, Second International Conference on Space Information Technology, 679565 (10 November 2007); https://doi.org/10.1117/12.775231

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