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Lunar Laser Ranging Science: Gravitational Physics and Lunar Interior and GeodesyLaser pulses fired at retroreflectors on the Moon provide very accurate ranges. Analysis yields information on Earth, Moon, and orbit. The highly accurate retroreflector positions have uncertainties less than a meter. Tides on the Moon show strong dissipation, with Q=33+/-4 at a month and a weak dependence on period. Lunar rotation depends on interior properties; a fluid core is indicated with radius approx.20% that of the Moon. Tests of relativistic gravity verify the equivalence principle to +/-1.4x10(exp -13), limit deviations from Einstein's general relativity, and show no rate for the gravitational constant G/G with uncertainty 9x10(exp -13)/yr.
Document ID
20070030938
Acquisition Source
Jet Propulsion Laboratory
Document Type
Preprint (Draft being sent to journal)
External Source(s)
Authors
Williams, James G.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Turyshev, Slava G.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Boggs, Dale H.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Ratcliff, J. Todd
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 24, 2013
Publication Date
July 18, 2004
Subject Category
Lunar And Planetary Science And Exploration
Meeting Information
Meeting: 35th COSPAR Scientific Assembly
Location: Paris
Country: France
Start Date: July 18, 2006
End Date: July 24, 2006
Sponsors: Committee on Space Research
Distribution Limits
Public
Copyright
Other
Keywords
Moon
relativity
lunar interior
lunar core
lunar geodesy
Lunar Laser Ranging (LLR)

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