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Intercontinental clock synchronization with the block 1 VLBI systemThe Block 1 very long baseline interferometer (VLBI) operated by the Deep Space Network (DSN) to make weekly measurements of the relative epoch and rate offsets between the time standards in the global network of DSN stations is discussed. The precision of these measurements routinely achieves sub-microsecond levels for epoch offset and accuracies of better than one part in 10 to the 12th power for rate offset. The implementation of the phase calibrator system permits absolute measurement of epoch offset to better than 10 nanoseconds. With the near-real-time play-back and on-line storage of VLBI data, the Block 1 system typically produces clock parameters within 48 hours from the time of observation.
Document ID
19820012643
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Roth, M. G. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 10, 2013
Publication Date
March 1, 1982
Publication Information
Publication: NASA. Goddard Space Flight Center Proc. of the 13th Ann. Precise Time and Time Interval (PTTI) Appl. and Planning Meeting
Subject Category
Lasers And Masers
Accession Number
82N20517
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19820012620Collected WorksProceedings of the Thirteenth Annual Precise Time and Time Interval (PTTI) Applications and Planning Meeting
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