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Determination of normal points for the relativity test of the celestial mechanics experimentThe relativity test is based on Mariner 9 tracking data acquired by the Deep Space Network. These data consist of two types of measurements: (1) two-way frequency difference (Doppler) measurements that are proportional to the tracking station-spacecraft range rate, and (2) signal round trip time-delay measurements that are proportional to the station-spacecraft range. A data compression scheme has been employed to alleviate accuracy and cost difficulties by (1) using the Doppler data to solve for the spacecraft orbit and to relate spacecraft position to the center of mass of Mars; and (2) combining this result with the station-spacecraft range measurements to obtain measurements of the Earth-Mars distance, called normal points, that contain all of the information pertinent to a detailed knowledge of the Earth-Mars motion.
Document ID
19730023977
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Jordan, J. F.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Hylkema, R. K.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Reinbold, S. J.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 7, 2013
Publication Date
July 15, 1973
Publication Information
Publication: Mariner Mars 1971 Proj., Vol. 4
Subject Category
Space Sciences
Accession Number
73N32710
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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