China has successfully launched a pair of Commercial Earth observation satellites to a Sun-Synchronous Orbit (SSO). Liftoff occurred at 04:11:33 UTC, from Launch Area 4 of the Jiuquan Satellite Launch Center. The rocket for today’s payload was a Chang Zheng 2C. This was one of initially two planned launches for April 29, but a Chang Zheng 11 sea launch slipped to no earlier than April 30.
The satellites are called Siwei-01/02 and are operated by the China Siwei Survey and Mapping Technology Co. Ltd. They are a company based in Beijing that produces and operates mapping technology and instruments. They are a subsidiary of the China Aerospace Science and Technology Corporation (CASC).