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莫斯科时间2015年4月28日10:09(北京时间15:09),联盟-2.1a火箭按计划从哈萨克斯坦境内的拜科努尔航天发射中心点火起飞,执行进步M-27M飞船的发射任务。该飞船是2015年俄罗斯第2艘向“国际空间站”运送补给的货运飞船。它在入轨后即发生了严重的并发故障,地面无法与其取得联系,处于失控翻滚状态。俄罗斯联邦航天局(Roscosmos)在莫斯科时间4月29日晚间宣布,此次任务无法挽救是不可避免的事实。进步M-27M于5月8日再入大气层。该任务失败造成的损失估计达26亿卢布(约合5050万美元)。
Moscow time on April 28, 2015 at 10:09 (Beijing time 15:09), the alliance -2.1a rocket was fired from the Baikonur Cosmodrome at its launch center in Kazakhstan on schedule to launch the M-27M spacecraft mission . The spacecraft is the second Russian spacecraft to deliver supplies to the “International Space Station” in 2015. It was in orbit after a serious concurrency failure, the ground can not get in touch with it, in a state of uncontrolled roll. Roscosmos announced in the evening of April 29 in Moscow time that the unavoidable task of this mission is an inevitable fact. Progress M-27M re-entered the atmosphere on May 8. The loss caused by the mission’s failure is estimated at 2.6 billion rubles (about 50.5 million U.S. dollars).