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2017年5月1日晚上19时15分,“猎鹰”9号火箭从肯尼迪航天中心将美国国家侦察局的NROL-76卫星发射升空,这是太空探索技术公司首次发射高度机密的军用载荷,是该公司进入军用发射市场的里程碑。这次发射中“猎鹰”9号火箭第一级实现了教科书式返回和回收,二级长时间滑行后再次点火,也为执行难度更高的静止轨道直送任务奠定了基础。
On the night of May 1, 2017, at 1915 hours, the Falcon 9 Rocket launched the NIR-76 satellite from the U.S. National Reconnaissance Agency from the Kennedy Space Center. This was the first time Space Exploration Technologies Inc. launched a highly classified Military payloads are a milestone for the company entering the military launch market. During the launch, “Falcon” No. 9 rocket first class achieved textbook-style return and recovery, and two-stage long-term glide rekindled the fire, laying a solid foundation for the implementation of a more challenging orbit direct mission.