Chang'e 4 Relay Satellite Queqiao Launched Atop A LM-4C

摘要

China launched a relay satellite named Queqiao on a LM-4C launch vehicle from the Xichang Satellite Launch Center at 05：28 Beijing time on May 21,2018.It is the world’s first communications satellite that operates in the orbit around the second Lagrangian（L2）point of the Earth-moon system。