摘要
A LM-3B launched the BeiDou 3 GEO-2 sallite into space at 19:55 Bei-jing time on March 9,2020,from the Xichang Satellite Launch Center.The satellite entered its predetermined orbit later,marking the success of the launch mission.As the 54th satellite in the BeiDou navigation satellite system and also the 29th BeiDou 3 stallite,the BeiDou 3 GEO 2 stlie,developed by the China Academy of Space Technology,is called the“lucky stllite”with the largest size,the longest designed service life and the most funcions.