A Long March-4C launch vehicle launched the Shiyan-20 A/B satellites from the Jiuquan Satellite Launch Center, Gansu Province, China, on 12 December 2022, at 08:22 UTC (16:22 local time). According to official sources, the Shiyan-20 A/B (试验二十号A/B) satellites have been “accurately put into a predetermined orbit” and will be “mainly used for on-orbit verification tests of new technologies, such as space environment monitoring”.
Credit: China Central Television (CCTV)/China Aerospace Science and Technology Corporation (CASC)

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