On January 21, 2019, at 05:42 the “Long March –11” (“Changzheng-11”) rocket-carrier was launched from the Jiuquan Satellite Launch Center in Jiuquan, Gansu Province, the northwest of China. The rocket orbited four satellites. The two primary payloads are the “Jilin-1” and “Jilin-2” hyperspectral Earth-imaging satellites.