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The Viking Relativity ExperimentMeasurements of the round-trip time of flight of radio signals transmitted from the earth to the Viking spacecraft are being analyzed to test the predictions of Einstein's theory of general relativity. According to this theory the signals will be delayed by up to approximately 250 microsec owing to the direct effect of solar gravity on the propagation. A very preliminary qualitative analysis of the Viking data obtained near the 1976 superior conjunction of Mars indicates agreement with the predictions to within the estimated uncertainty of 0.5%.
Document ID
19780027515
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Shapiro, I. I.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Reasenberg, R. D.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Macneil, P. E.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Goldstein, R. B.
(MIT Cambridge, Mass., United States)
Brenkle, J. P.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Cain, D. L.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Komarek, T.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Zygielbaum, A. I.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)
Cuddihy, W. F.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Michael, W. H., Jr.
(NASA Langley Research Center Hampton, Va., United States)
Date Acquired
August 9, 2013
Publication Date
September 30, 1977
Publication Information
Publication: Journal of Geophysical Research
Volume: 82
Issue: 28
Subject Category
Astrophysics
Accession Number
78A11424
Funding Number(s)
CONTRACT_GRANT: NSF PHY-72-05104-A05
CONTRACT_GRANT: NAS7-100
CONTRACT_GRANT: NAS1-9702
Distribution Limits
Public
Copyright
Other

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