Experimental test of the variability of G using Viking lander ranging data

Details Experimental test of the variability of G using Viking lander ranging data Experimental test of the variability of G using Viking lander ranging data

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ijtp...28.1035h&link_type=abstract

International Journal of Theoretical Physics, Volume 28, Issue 9, pp.1035-1041

Physics

4

Scientific paper

Results are presented from the analysis of solar system astrometric data, notably the range data to the Viking landers on Mars. A least-squares fit of the parameters of the solar system model to these data limits a simple time variation in the effective Newtonian gravitational constant to (0.2 ± 0.4) × 10-11 year-1 and a rate of drift of atomic clocks relative to the implicit clock of relativistic dynamics to (0.1 ± 0.8) × 10-11 year-1. The error limits quoted are the result of uncertainties in the masses of the asteroids.

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