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.(WU Yaheng/China Space News)