Abstract: At 10:19 Beijing time on March 13, 2021, a LM-4C launch vehicle was launched into space from the Jiuquan Satellite Launch Center with 3 satellites, Yaogan 31-04 group, launching the satellites into their preset orbits. This was the 3rd flight mission of LM-4B series launch vehicle in 2021 as well as the 363rd launch of LM series rocket.
The Yaogan 31-04 group satellites were developed by the DFH Satellite Co., Ltd. of China Academy of Space Technology and are mainly used for electromagnetic environment detection measurements.