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Planetary and Earth Figure Perturbations in the Librations of the Moon

Published online by Cambridge University Press:  12 April 2016

Donald H. Eckhardt
Donald H. Eckhardt*
Affiliation:
Air Force Geophysics Laboratory Bedford, Massachusetts 01731

Abstract

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Comparisons of numeric, semi-analytic and analytic lunar libration models indicate that the planetary and Earth figure perturbations used to supplement the semi-analytic and analytic models are inadequate. Using the ELP-2000 of Chapront and Chapront-Touzé, an improved solution of these perturbations is developed. For the libration in longitude there are numerous terms with periods near that of the free libration; their amplitudes remain ill-defined.

Type
Part III
Information
International Astronomical Union Colloquium , Volume 63: High-Precision Earth Rotation and Earth-Moon Dynamics , May 1981 , pp. 193 - 198
Copyright
Copyright © Reidel 1982

References

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