Satellite Orbit Determination Using GPS Carrier Phase in Pure Kinematic Mode

Sung H. ByUII and Bob E. Schutz

Abstract:	.4 new algorithm and computer program, KODAC (Kinematic Orbit Determination And Comparison), was developed for precise satellite orbit determina-tion using a kinematic approach with the GPS car-rier phase as the observable. Since the GPS signal has enough spatial geometric information, it is possible to determine the satellite orbit using a purely kinematic approach. In this method both double and triple dif-ference GPS carrier phases are used as observable. Epoch by epoch satellite positions and DD ambigui-ties are estimated by assuming GPS ephemerides and ground station positions are known. TOPEX GPS data is used for this study. Final radial rms orbit ac-curacy of 5 cm with respect to the MSODP (Multi Satellite Orbit Determination Program) dynamic so-lution is achieved. This new kinematic approach has the advantage of having consistent orbit accuracy re-gardless of satellite altitude. The same algorithm can be applied to any satellite with a GPS receiver due to the algorithm’s non-dynamic approach.
Published in:	Proceedings of the 11th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1998) September 15 - 18, 1998 Nashville, TN
Pages:	1519 - 1528
Cite this article:	ByUII, Sung H., Schutz, Bob E., "Satellite Orbit Determination Using GPS Carrier Phase in Pure Kinematic Mode," Proceedings of the 11th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1998), Nashville, TN, September 1998, pp. 1519-1528.
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