Timing System Design Considerations for a Mobile Astrolabe

Carl F. Lukac, Paul Wheeler, Richard E. Keating, Randolph T. Clarke

Abstract:	The Danjon Astrolabe at the Naval Observatory has been traditionally used to determine Universal Time and improve the systematic accuracy of star positions. During the past year, it has been used to determine latitude and longitude at remotely scattered sites for geodetic purposes. Operating this instrument away from the Observatory necessitated a mobile support and timing system rugged enough to operate dependably in ever changing. and sometimes harsh, environmental conditions. This paper describes the performance of the astrolabe timing system, gives the basic engineering design considerations, and describes the equipment and instrumentation.
Published in:	Proceedings of the 15th Annual Precise Time and Time Interval Systems and Applications Meeting December 6 - 8, 1983 Naval Research Laboratory Washington, DC
Pages:	423 - 441
Cite this article:	Lukac, Carl F., Wheeler, Paul, Keating, Richard E., Clarke, Randolph T., "Timing System Design Considerations for a Mobile Astrolabe," Proceedings of the 15th Annual Precise Time and Time Interval Systems and Applications Meeting, Washington, DC, December 1983, pp. 423-441.
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