SJ-9A and SJ-9B satellites were launched into space atop a LM-2C/SMA launch vehicle from the Taiyuan Satellite Launch Center(TSLC)on October 14,2012 and operated in a SSO orbit.As the national first civilian new technology experimental satellites,SJ-9 satellites are a milestone in the growth of China’s space industry.As the result of rapid development of the national space undertaking,the technical reserve lags behind sometimes.CASC attached much importance to how to tackle the difficult problem in satellite R&D,production and keep a sustainable SJ-9A and SJ-9B satellites were launched into space atop a LM-2C / SMA launch vehicle from the Taiyuan Satellite Launch Center (TSLC) on October 14, 2012 and operated in a SSO orbit. As the national first civilian new technology experimental satellites, SJ-9 satellites are a milestone in the growth of China’s space industry. As the result of rapid development of the national space undertaking, the technical reserve lags behind. CASA attached much importance to how to tackle the difficult problem in satellite R & D , production and keep a sustainable