摘要
The LM-3C/Yuanzheng 1 launch vehicle lifted off from the Xichang Satellite Launch Center at 21:52 Beijing time on March 30,2015,putting China’s 17th Bei Dou satellite into orbit.At 03:34 on March 31,the satellite detached from the Yuanzheng 1 upper stage and entered its working orbit directly,marking the success of China’s first launch mission in year 2015.The China Academy of Launch
