27 December 2019
China's biggest, heaviest and most advanced satellite was sent into space on the night of 27 December to carry out demonstration and verification for advanced satellite and communication technologies. Shijian 20, a technology demonstration satellite developed by the China Academy of Space Technology in Beijing, was lifted into orbit by the third mission of the Long March 5 carrier rocket at the Wenchang Space Launch Centre in Hainan province at 20:45 h BJT.

China launches heaviest satellite to test key technologies