At 12:15 on May 21, China successfully launched four satellites, including the Wuhan 1 satellite and the ultra-low orbit technology test satellite, using the Kuaizhou 11 Yao-4 carrier rocket at the Jiuquan Satellite Launch Center. The previous day, China successfully launched the Beijing No.3 C constellation in Taiyuan Satellite Launch Center using the Long March IID carrier rocket, and four satellites successfully entered the scheduled orbit. Shen Jizhong
