Xinhua reports that the third pair of Shi Jian 6 satellites were
launched on Oct 25, 2008 at 0115 UTC. It has been reported that the
satellites are built by the SAST group in Shanghai and the DFH Co. in
Beijing, suggesting that in each pair the two satellites are of
different design. The DFH Co. satellite is probably a CAST-968 300
kg-class minisatellite, and the SAST satellite might be based on the
larger FY-1 weather satellite bus.
The satellite is designe to study the harsh environment of space.