Ephemeris Determination Using a Connected Element Interferometer

D. Morrison, S. Pogorelc, T. Celano, A. Gifford

Abstract:	This paper describes a connected element interferometer that has been developed and is operating with collection elements in Tucson and Phoenix with a separation of 180 km. Coherence between the collection sites of better than 50 picoseconds is achieved through two-way time transfer over a commercial fiber optics link. The description of hardware and software implementation, as well as measurement results of several operating satellites, are presented. Consider analysis is also presented to demonstrate the projected system performance against different targets, based on the characteristics of the measurement using the existing Tucson-Phoenix link.
Published in:	Proceedings of the 34th Annual Precise Time and Time Interval Systems and Applications Meeting December 3 - 5, 2002 Hyatt Regency Reston Town Center Reston, Virginia
Pages:	295 - 307
Cite this article:	Morrison, D., Pogorelc, S., Celano, T., Gifford, A., "Ephemeris Determination Using a Connected Element Interferometer," Proceedings of the 34th Annual Precise Time and Time Interval Systems and Applications Meeting, Reston, Virginia, December 2002, pp. 295-307.
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