A Positioning System for GEO Satellites Using GOES Weather Satellites as GPS-Type Pseudolites

Robert B. Ward and Larry Capots

Abstract:	The results of a study of the possibility of using future GOES weather satellites carrying GPS-type transmitters for making a GPS-like position measuring system to determine the positions of GEO satellites are presented. The system is shown to be feasible and attractive. Overall GEO position measurement error in the 10 to several hundred meter range should be possible. Several different embodiments of such a system are presented. The range of coverage of the GEO arc and the GEO position measurement error due to geometric dilution of precision are presented for the different embodiments as a function of GEO satellite location on the GEO arc. Two GOES satellites with two fixed earth stations provide coverage of the GEO arc from 31 degrees west longitude to 177 degrees east longitude. With four fixed earth stations, coverage is provided from 27 degrees east longitude to 122 degrees east longitude. The results were obtained by geometrical and other calculations.
Published in:	Proceedings of the 57th Annual Meeting of The Institute of Navigation (2001) June 11 - 13, 2001 Albuquerque, NM
Pages:	159 - 167
Cite this article:	Ward, Robert B., Capots, Larry, "A Positioning System for GEO Satellites Using GOES Weather Satellites as GPS-Type Pseudolites," Proceedings of the 57th Annual Meeting of The Institute of Navigation (2001), Albuquerque, NM, June 2001, pp. 159-167.
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