地月系共线平动点Halo轨道族的运动稳定性研究  

Stability Researching of Halo Families Surrounding Libration Points in Earth-Moon System

作　　者：王丹丹[1] 张守余[2] 杜兰[1,3] 

机构地区：[1]信息工程大学测绘学院 [2]92383部队 [3]空间导航与定位技术重点实验室

出　　处：《信息工程大学学报》2010年第4期508-512,共5页Journal of Information Engineering University

基　　金：国家自然科学基金资助项目(40974019);上海市空间导航与定位技术重点实验室基金资助项目

摘　　要：地月系共线平动点附近的Halo轨道族,能够提供从L1点至月球再至L2点的广泛空间的多种轨道应用需要,但2个轨道族内轨道的稳定性差异较大。文章引入稳定系数和线性稳定阶数2个指标来判断轨道的稳定性,并用数值模拟分别分析了百米和千米量级的初始轨道误差在数天后所引起的轨道偏差,得出结论：两轨道族内接近平动点的部分轨道稳定性较差,其余部分轨道稳定性相差不大,L1点附近Halo轨道族内轨道较为稳定的是0.85~0.92之间的轨道,L2点较为稳定的是1.02~1.1之间的轨道。Halo families in Earth-Moon System supply lots of choices for using in space between L1 and L2 points.Stability Index and Linear Stability Order are introduced to judge orbits＇ stability.Also numerical integrator is used to analyze orbit gap,when several hundreds meters orbit initializing error is added,and several days is propagated.The result is that stability of orbits near libration points is worse.The stability of orbits between 0.85 and 0.92 in Halo family around L1 point is much better,and for Halo family around L2 point,the stability of orbits between 1.02 and 1.1 is much better.

关 键 词：地月系 共线平动点 Halo轨道族 稳定性 稳定系数 线性稳定阶数 

分 类 号：P228[天文地球—大地测量学与测量工程]