Abstract
The recent long-term integration of JPL ephemeris DE403/LE403 yielded lunar physical librations covering 6000 years. A Fourier analysis of a 718-year subset of this span produced estimates of the component frequencies of the forced and free librations. A subsequent iterative least-squares estimation procedure provided precise values for phases and for time-varying amplitudes and frequencies. Two free libration modes were found; presence of a third is possible but close to the noise.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Calame, O.: 1977, “Free librations of the Moon from Lunar Laser Ranging”, in: Scientific Applications of Lunar Laser Ranging (J. D. Mulholland, ed.), Reidel, Dordrecht/Boston, pp. 53–63.
Dickey, J. O., Bender, P. L., Faller, J. E., Newhall, X X, Ricklefs, R. L., Ries, J. G., She-lus, P. J., Veillet, C., Whipple, A. L., Wiant, J. R., Williams, J. G., and Yoder, C. F.: 1994, “Lunar Laser Ranging: A Continuing Legacy of the Apollo Program”, Science 265, 482–490.
Eckhardt, D. H.: 1981, “Theory of Libration of the Moon”, The Moon and the Planets 25, 3–49.
Eckhardt, D. H.: 1982, “Planetary and Earth-Figure Perturbations in the Librations of the Moon”, in High-Precision Earth Rotation and Earth-Moon Dynamics (O. Calame, ed.), Reidel, Dordrecht/Boston, pp. 193-198.
Eckhardt, D.H.: 1993, “Passing Through Resonance: The Excitation and Dissipation of the Lunar Free Libration in Longitude”, Celest. Mech. & Dyn. Astron. 25, 3–49.
Moons, M.: 1984, “Planetary Perturbations on the Libration of the Moon”, Celest. Mech. 34, 263–273.
Williams, J. G. and Newhall, X X: 1997, “The Lunar Free Librations: Why Isn’t the Rotation Quiescent?”, to appear.
Yoder, C. F.: 1981, “The free librations of a dissipative Moon”, Phil. Trans. R. Soc. Lond. Series A 303, 327–338.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1997 Springer Science+Business Media Dordrecht
About this paper
Cite this paper
Newhall, X.X., Williams, J.G. (1997). Estimation of the Lunar Physical Librations. In: Wytrzyszczak, I.M., Lieske, J.H., Feldman, R.A. (eds) Dynamics and Astrometry of Natural and Artificial Celestial Bodies. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5534-2_3
Download citation
DOI: https://doi.org/10.1007/978-94-011-5534-2_3
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-6330-2
Online ISBN: 978-94-011-5534-2
eBook Packages: Springer Book Archive