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Improving the Accuracy of Lunar Laser Ranging Tests of Gravitational Theory: Modeling and Future DirectionsAccurate analysis of precision ranges to the Moon have provided several tests of gravitational theory: the equivalence principle, geodetic precession, PPN parameters beta and gamma, and the constancy of the gravitational constant G. Other possible tests include the inverse square law at 20,000 km length scales and the PPN parameter 1. The uncertainties of these tests have decreased as data accuracies have improved and data time span has lengthened. We are exploring the modeling improvements necessary to proceed from cm to mm range accuracies. Looking to future exploration, what characteristics are desired for the next generation of ranging devices, what fundamental questions can be investigated, and what are the challenges for modeling and data analysis?
Document ID
20050186670
Acquisition Source
Jet Propulsion Laboratory
Document Type
Abstract
Authors
Williams, James G. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Turyshev, Slava (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Dickey, Jean O. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2003
Publication Information
Publication: Proceedings of the 2003 NASA/JPL Workshop on Fundamental Physics in Space
Subject Category
Geophysics
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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