At 8:55 on November 23, Beijing time, at Xichang Satellite Launch Center, China successfully launched the 50th and 51st Beidou navigation satellites in the way of "one arrow, two stars" by using long march 3B carrier rocket and expedition 1 upper stage. Gao Nan she

Two out of five satellites belong to the central earth orbit satellite, which is the networking satellite of beidou-3 system under construction in China. After more than three hours of flight, the satellite will successfully enter the scheduled orbit, and then on orbit test will be carried out to provide timely access to the network. Gao Nan she

3 / 5 the Beidou navigation satellite and supporting launch vehicle (and supporting expedition I upper stage) launched this time were jointly developed by the micro satellite Innovation Research Institute of the Chinese Academy of Sciences and the China launch vehicle technology research institute affiliated to China Aerospace Science and Technology Group Co., Ltd. Gao Nan she

4 / 5 from the launch of the first beidou-2 navigation test satellite in 2007, in 12 years, the long March-3A launch vehicle (hereinafter referred to as the long March-3A series rocket) has successfully performed 37 times and put 51 Beidou navigation satellites into the predetermined orbit. If the Beidou navigation test satellite launched earlier is included, 55 Beidou satellites will be escorted into orbit by the long 3A series rocket with a success rate of 41 times and 100%. Gao Nan she

5 / 5 this launch is the 107th launch of the long march series a rocket and the 319th flight of the long march series carrier rocket.