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据报道:在2011年6月29日成功发射了作战及时响应型太空-1(ORS-1)卫星后,美国军方计划于10月发射战术星(Tac-Sat)-4卫星。TacSat是ORS计划的主要技术验证项目。迄今已发射了TacSat-2,TacSat-3两颗卫星。
It is reported that the U.S. military plans to launch the Tac-Sat-4 satellite in October after the successful launch of the ORS-1 spacecraft on June 29, TacSat is a major technology validation program for the ORS program. So far TacSat-2 and TacSat-3 have been launched.