Gravity Probe B: Final Results of a Space Experiment to Test General Relativity
General Relativity and Quantum Cosmology
2011-07-21 v1
Abstract
Gravity Probe B, launched 20 April 2004, is a space experiment testing two fundamental predictions of Einstein's theory of General Relativity (GR), the geodetic and frame-dragging effects, by means of cryogenic gyroscopes in Earth orbit. Data collection started 28 August 2004 and ended 14 August 2005. Analysis of the data from all four gyroscopes results in a geodetic drift rate of -6,601.8+/- 18.3 mas/yr and a frame-dragging drift rate of -37.2 +/- 7.2 mas/yr, to be compared with the GR predictions of -6,606.1 mas/yr and -39.2 mas/yr, respectively (`mas' is milliarc-second; 1mas = 4.848 x 10-9 rad).
Keywords
Cite
@article{arxiv.1105.3456,
title = {Gravity Probe B: Final Results of a Space Experiment to Test General Relativity},
author = {C. W. F. Everitt and D. B. DeBra and B. W. Parkinson and J. P. Turneaure and J. W. Conklin and M. I. Heifetz and G. M. Keiser and A. S. Silbergleit and T. Holmes and J. Kolodziejczak and M. Al-Meshari and J. C. Mester and B. Muhlfelder and V. Solomonik and K. Stahl and P. Worden and W. Bencze and S. Buchman and B. Clarke and A. Al-Jadaan and H. Al-Jibreen and J. Li and J. A. Lipa and J. M. Lockhart and B. Al-Suwaidan and M. Taber and S. Wang},
journal= {arXiv preprint arXiv:1105.3456},
year = {2011}
}