摘要
月球物理天平动是月球赤道在空间真实的摆动,会导致月球引力场在空间坐标系中的变化,从而引起环月轨道器(以下称为月球卫星)的轨道变化,这与地球的岁差章动现象对地球卫星轨道的影响类似.采用类似对地球岁差章动的处理方法,讨论月球物理天平动对月球卫星轨道的影响,给出相应的引力位的变化及卫星轨道的摄动解,清楚地表明了月球卫星轨道的变化规律,并和数值解进行了比对,从定性和定量方面作一讨论.
Lunar physical libration, which is the true swing of lunar equator in the space, alters the lunar gravitational field in the space coordinate system and affects the orbiting motion of lunar satellites correspondingly. This kind of affection is very similar with that of the precession and nutation on the earth satellites. The method which resemble the one used in the effects of precession and nutation on the earth satellites be adopted to discuss the effects of physical libration of moon on the motion of lunar satellite. The variation of gravitation force and the orbit's perturbation solution which indicate orbital variation clearly, are given in the paper together with corresponding numerical solution. From the aspects of both quality and quantity, this discussion is significative.
出处
《天文学报》
CSCD
北大核心
2005年第2期196-206,共11页
Acta Astronomica Sinica
基金
国家自然科学基金(10173006)资助项目
