Nasa PTTI Programs: Present and Future

Schuyler C. Wardrip

Abstract:	This paper discusses the current and future PTTI programs at the Goddard Space Flight Center (GSFC) and the evolution of frequency and time requirements over past years within the various NASA satellite tracking networks. A brief history of the network development is also given.
Published in:	Proceedings of the 12th Annual Precise Time and Time Interval Systems and Applications Meeting December 2 - 4, 1980 Goddard Space Flight Center Greenbelt, Maryland
Pages:	151 - 198
Cite this article:	Wardrip, Schuyler C., "Nasa PTTI Programs: Present and Future," Proceedings of the 12th Annual Precise Time and Time Interval Systems and Applications Meeting, Greenbelt, Maryland, December 1980, pp. 151-198.
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