Ultra-stable oscillators for planetary entry probes

Details Ultra-stable oscillators for planetary entry probes Ultra-stable oscillators for planetary entry probes

Feb 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004esasp.544..131a&link_type=abstract

In: Proceedings of the International Workshop Planetary Probe Atmospheric Entry and Descent Trajectory Analysis and Science, 6-9

Physics

Planetary Entry Probes, Oscillators

Scientific paper

Ultra-stable oscillators on-board planetary missions were developed for Radio Science instrumentation, functioning as frequency references for the one-way downlink during atmospheric occultations. They have also been flown on planetary entry probes including the Jupiter entry probe, carried by Galileo, and the Huygens Titan entry probe, carried by Cassini, for performing Doppler Wind Experiments. The Jupiter and Titan probes utilized different oscillators, quartz and rubidium, respectively. This paper presents the development of ultra-stable oscillators on deep space missions and discusses the tradeoffs encountered when selecting oscillators for planetary entry probes, including factors such as duration of the experiment, the available warm-up time and the Allan deviation and phase noise requirements.

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