Design and implementation of Chinese libration point missions  

作　　者：Lei LIU Weiren WU Yong LIU 

机构地区：[1]Beijing Aerospace Control Center,Beijing 100094,China [2]Lunar Exploration and Space Program Center,Beijing 100186,China

出　　处：《Science China(Information Sciences)》2023年第9期96-110,共15页中国科学（信息科学）（英文版）

基　　金：National Natural Science Foundation of China(Grant Nos.11303001,11773004,61573049);Major Special Project of the National Lunar Exploration Program of China。

摘　　要：Libration points are vital for lunar and deep space explorations because of their unique positions and dynamics.This paper first traces the development of relevant missions since ISEE-3 and then presents the details of the trajectory design and implementation of four Chinese libration point missions in the lunar exploration project:the two Sun-Earth libration point missions by CHANG'E-2 and CHANG'E-5 and the two lunar libration point missions accomplished by CHANG'E-5T1 and Queqiao.The orbit technologies for these libration point missions are also elaborated on regarding trajectory design,maneuvering,and tracking,as well as orbit determination.This paper is expected to provide a reference for future cislunar and deep space exploration.

关 键 词：libration point three-body problem lunar exploration cislunar space flight scheme 

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] V476