At 6:57 on July 16, China successfully launched two 4D 03/04 satellites using the Long March 2C carrier rocket at the Taiyuan Satellite Launch Center. The satellite successfully entered the predetermined orbit and the launch mission was a complete success. These two satellites mainly provide commercial remote sensing services for land survey, geographical mapping, natural disaster monitoring, urban planning and other fields, as well as emerging markets such as real 3D, urban security, digital watershed, finance and agriculture. This mission is the 427th flight of long march series carrier rockets. (outlook new era)