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NASA NTRS · 20210002139

Clocks and oscillators in space

Young, B.·Maleki, L.
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Abstract

In this paper a short review of the role of clocks and oscillators in space is presented, together with some future projections for laser based systems.

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BibTeXRIS

Young, B., Maleki, L.. 2001-01-01. Clocks and oscillators in space. https://ntrs.nasa.gov/citations/20210002139

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NASA NTRS2005

Clocks and timing in the NASA Deep Space Network

A new timing system has been developed for the NASA Deep Space Network (DSN) and is currently in the final stages of integration, testing and implementation in all three DSN sites. The DSN is a distributed antenna network for deep space communication, whose facilities are continuously engaged in spacecraft tracking, Very Long Baseline Interferometry (VLBI) or Radio Astronomy activities. Its primary components consist of three Deep Space Communication Centers (DSCC) separated nearly equidistant around the Earth in California, USA; Spain; and Australia. Within each DSCC, synchronized, low jitter timing signals must be distributed to many users over distances of up to 30 kilometers. The design criteria for the timing system required state of the art stability and jitter performance, but also extremely high operability and reliability. This paper describes some of the key features and recent system performance data as measured both in the laboratory and the operational DSN.

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