Evaluation of the geocentric gravitational constant from Viking Doppler and range data

Details Evaluation of the geocentric gravitational constant from Viking Doppler and range data Evaluation of the geocentric gravitational constant from Viking Doppler and range data

Jul 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979jgr....84.3654e&link_type=abstract

Journal of Geophysical Research, vol. 84, July 10, 1979, p. 3654-3658.

Physics

1

Doppler Effect, Geopotential, Gravitational Constant, Radio Tracking, Viking Spacecraft, Interplanetary Trajectories

Scientific paper

During the launch and near-earth phase, continuous radio tracking data were acquired from two Viking spacecraft as they receded from earth. Analysis of this data yielded these values for the geocentric gravitational constant GM: 398600.5 + or - 0.1 cu km/sec per sec for Viking 1 and 398600.65 + or - 0.2 cu km/sec per sec for Viking 2. These values include the atmosphere of the earth and are consistent with the currently adopted speed of light (299792.458 km/sec.).

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