Time Recovery Measurements Using Operational GOES and Transit Satellites

R.E. Beehler, D.D. Davis, J.V. Cateora, A.J. Clements, J.A. Barnes, E. Méndez-Quiñones

Abstract:	Users with requirements for timing signals available over wide geographical areas that are accurately referenced to UTC(NBS) or UTC(USNO) can conveniently access either of two operational satellite systems. Two geostationary GOES (Geostationary Operational Environmental Satellite) satellites located at 750 and 135º W longitude provide a continuous NBS-referenced time code to the Western hemisphere, including large portions of the Atlantic and Pacific Ocean areas. Five operational TRANSIT satellites provide timing signals referenced to UTC(USNO) from low-altitude polar orbits, resulting in worldwide coverage on a non-continuous basis. Convenient, fully automatic, microprocessor-based commercial receivers are now available for use with both satellite systems Results of regular monitoring of both the GOES and TRANSIT timing signals over a number of months at NBS, Boulder, CO are presented. The TRANSIT results include an analysis of how received timing accuracy and stability are affected by: (1) averaging over varying numbers
Published in:	Proceedings of the 11th Annual Precise Time and Time Interval Systems and Applications Meeting November 27 - 29, 1979 Goddard Space Flight Center Greenbelt, Maryland
Pages:	283 - 312
Cite this article:	Beehler, R.E., Davis, D.D., Cateora, J.V., Clements, A.J., Barnes, J.A., Méndez-Quiñones, E., "Time Recovery Measurements Using Operational GOES and Transit Satellites," Proceedings of the 11th Annual Precise Time and Time Interval Systems and Applications Meeting, Greenbelt, Maryland, November 1979, pp. 283-312.
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