Chang'e 4's Relay Satellite Bridging Earth and Moon

作     者：YU Guobin 

作者机构：Lunar Exploration and Space Program Center CNSA Beijing 100048 

出 版 物：《Aerospace China》 (中国航天（英文版）)

年 卷 期：2019年第20卷第2期

页      面：40-45页

学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学] 

主　　题：Chang'e 4 mission Queqiao lunar far side relay communications Earth-moon libration point 2 

摘      要：The far side of the moon is a unique place for some scientific *** e 4 is a Chinese lunar far side landing exploration *** communication satellite,named as Queqiao,is an important and innovative part of Chang e 4 *** can provide relay communication to the lander and the rover operating on the lunar far side to maintain their contacts with *** was launched by LM-4C launch vehicle at the Xichang Satellite Launch Center on May 21,*** five precise orbit controls and a journey of more than 20 days,Queqiao inserted into final halo mission orbit around Earth-moon libration point 2,located about 65,000 km beyond the *** is the world s first communication satellite operating in that *** to now,Queqiao worked very well and provided reliable,continuous communication relay service for the lander and the rover to ensure the mission success of Chang e 4 exploration *** Queqiao,the lander and the rover were controlled to work by ground stations and obtained a great amount of scientific *** mission overview,operation orbit selection,relay communication system design and flight profile were introduced in this article.