SatNet LEO Group 02 (Demo Flight)

Demonstration flight of the Long March 8A rocket with upgraded first stage and boosters engines, and a new larger liquid hydrogen/liquid oxygen second stage with new YF-75H engines derived from ones used on the Long March 5. Payload is a batch of 9 Low Earth Orbit communication satellites for the Chinese state owned SatNet constellation operated by the China Satellite Network Group. The constellation will eventually consists of 13000 satellites.