On November 23, 2019 at 00:55 UTC, the Chang Zheng-3B (Long March-3B) rocket-carrier was launched from the Xichang Satellite Launch Center in southwest China's Sichuan Province. The rocket orbited 2 "Beidou” (Compass) navigation satellites (Beidou-50 and Beidou-51) for China’s indigenous global navigation and positioning network.