月球卫星的冻结轨道  

Frozen Orbit for Lunar Satellite

作　　者：杨维廉 

机构地区：[1]航天科技集团五院总体部,北京100094

出　　处：《宇航学报》2008年第2期426-429,455,共5页Journal of Astronautics

摘　　要：地球(及其它行星)、月球的卫星由于引力场的南北不对称性都存在冻结轨道(Frozen orbit),月球异常复杂的引力场使得月球卫星的轨道有着与地球卫星轨道不同的特性,这种不同的轨道特性可以通过两者的冻结轨道不同来说明。此外给出了描述轨道慢变化的近似分析解,由此可以清楚地看出一般的非冻结轨道与冻结轨道的关系。There exist frozen orbits not only for satellites of earth(planets) but also for lunar satellites,as long as the central body is north-south asymmetric.The behavior of orbits of lunar satellites is much different from earth orbits,because the lunar gravitational field is much more complicated than the earth.These orbital characters can be understood through analysis of the frozen orbit.An approximate analytical solution for the slow variation of the orbit is given from which the relation between frozen and ...

关 键 词：月球探测 月球卫星 月球卫星轨道 冻结轨道 

分 类 号：V412.41[航空宇航科学与技术—航空宇航推进理论与工程]