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Influence of Ephemeris Uncertainties and Relativity Modeling on Lunar Laser Ranging Data Analysis

Published online by Cambridge University Press:  07 August 2017

Wenjing Jin ,
Huaguan Xu ,
Zhaoming Nie  and
Jinling Li
Wenjing Jin
Affiliation:
Shanghai Observatory, Shanghai 200030, China
Huaguan Xu
Affiliation:
Shanghai Observatory, Shanghai 200030, China
Zhaoming Nie
Affiliation:
Yunnan Observatory, P.O. Box 110, Kunming, China
Jinling Li
Affiliation:
Yunnan Observatory, P.O. Box 110, Kunming, China

Abstract

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In this paper authors pointed out that the root mean square of post-residual is two or three times larger than that of normal points. It is mainly due to the ephemeris uncertainties, i.e. the uncertainties of obliquity of the ecliptic and equinox and the inaccurary of lunar love numbers adopted. At present, with exception of the corrections of ocean tide and pole tide the theoretical modeling such as earth solid tide, lunar tide, plate motion and the relativity modeling, especially the space curvature caused by the earth, have been considered to match the present observing precision in the magnitude of centimeter. The equivalent of relativity modeling used in geocentric or barycentric reference frame is further described.

Type
Impact on Geodynamics
Information
Symposium - International Astronomical Union , Volume 156: Developments in Astrometry and their Impacts on Astrophysics , 1993 , pp. 329 - 334
Copyright
Copyright © Kluwer 

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