The Affect of Physical Libration of Moon on Lunar Obiter

摘要：

Lunar physical libration, which is the true swing of lunar equator in the space, not only brings the different definition of the selenocentric equatorial coordinate system, but also alters the lunar gravitational field in the space coordinate system and affects the orbiting motion of lunar orbiter (or called lunar satellites) correspondingly. This kind of affection is very similar with that of the precession and nutation on the earth satellites. This paper will adopt the method which resemble the one used in the effect of precession and nutation on the earth satellites, discuss the affect of physical libration of moon on the selenocentric equatorial system and the motion of lunar satellite. Based on the comparison of the physical libration in DE405 and the analytical expression, the corresponding variation of gravitational potential and the solution of additional perturbation due to the change of coordinate system are given, which indicate orbital variation clearly, and the comparison with corresponding numerical solution shows this discussion is significative from the aspects of both quality and quantity.

关键词： Physical Libration of Moon Epoch Selenocentric Equatorial Coordinate System Bodyfized System of Moon Additional Perturbation due to the Change of Coordinates System

作者: Zhang Wei Liu Lin

作者单位: Astronomy Department,Nanjing University,Nanjing 210093 Institute for Space Environment and Astrodynamics,Nanjing University,Nanjing 210093

会议类型: 国际会议

会议名称: The 11th International Space Conference of Pacific-basin Societies(第11届环太平洋国际航天会议)

会议地点: 北京

会议语种:英文

页码: 712-718

在线出版日期: 2007-05-16（万方平台首次上网日期，不代表论文的发表时间）