The Shuttle Experiment Navex Completed on Spacelab Mission D1

S. Starker, H. Nau, J. Hammes

Abstract:	From Oct. 30 to Nov. 6 1985 the first dedicated German Shuttle Mission D1 with the Spacelab Laboratory on board took place. One of the more than 70 experiments on board was the Navigation Experiment NAVEX. A Cs- and Rb-clock onboard were used for the generation of PN-code navigation signals. During the experiment these clocks were compared with the ground master clock by one-way and two-way methods. In this paper survey will be given on the progress of the experiment and on first raw data, which indicate already a satisfactory operation of the used spread spectrum technique and a very accurate confirmation of the predicted relativistic clock effects.
Published in:	Proceedings of the 17th Annual Precise Time and Time Interval Systems and Applications Meeting December 3 - 5, 1985 DuPont Plaza Hotel Washington, DC
Pages:	405 - 412
Cite this article:	Starker, S., Nau, H., Hammes, J., "The Shuttle Experiment Navex Completed on Spacelab Mission D1," Proceedings of the 17th Annual Precise Time and Time Interval Systems and Applications Meeting, Washington, DC, December 1985, pp. 405-412.
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