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美间谍卫星去哪了?美媒称发射失败,SpaceX称一切正常
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美间谍卫星去哪了?美媒称发射失败,SpaceX称一切正常
January 15, 2018, 01:41:21 PM
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当地时间1月7日20时,硅谷“钢铁侠”马斯克旗下公司SpaceX为美国政府发射了一颗间谍卫星,任务代号为“Zuma”。美国军工制造商诺思罗普·格鲁曼公司代表美国政府安排了这次发射,表示“Zuma”将被发射至近地轨道。
就在卫星发射后不久,《华尔街日报》援引美国政府官员的消息称,“Zuma”未能与“猎鹰9”火箭第二级分离,可能已经解体或者落入海中。目前调查正在进行中,未发现有破坏或其他干扰的迹象。
由于任务的隐秘性,SpaceX在其直播期间没有直播整个Zuma任务。通常来说,对于商业航空飞行任务,公司会一直直播到有效载荷部署到轨道上。即便是与政府相关的任务,SpaceX或与其合作的政府机构,也会在发射后会对成功与否给出一个结论。
在当晚的发射后,SpaceX宣布,猎鹰9号一级火箭回收成功,并且一直在推特账号上发布图片和直播视频,表明一切顺利。但对于二级火箭的情况,SpaceX并没有透露。
至于对Zuma卫星消失的评论,SpaceX表示:“我们不对此种性质的任务置评。不过就目前而言,数据评估显示‘猎鹰9’号火箭运行正常。”值得一提的是,SpaceX将会在2018年推出了新的猎鹰重型火箭,如果此次发射是公司火箭硬件的问题,那新型火箭的测试发射可能不会发生。
事件另一方,卫星制造商诺思罗普·格鲁曼目前也没有出面证实发射是否成功。正因为相关方都未表态卫星发射成功,因此关于这颗间谍卫星的去向便成了谜。
让事情变得更加复杂的是,发射当晚,美国战略司令部宣布在轨道上看到了一颗卫星物体。美国战略司令部的联合太空作战中心能追踪所有绕地球的人造卫星,并对其进行维护和记录。
在SpaceX发射之后,中心的卫星追踪目录上就新增了一个名为“美国280”的卫星。《the Verge》认为,这意味着美国战略司令部有人在卫星进入轨道之后,将Zuma加入到了目录之中,但关于轨道的进一步信息并没有公布。
哈佛大学太空飞行和天体物理学家乔纳森·麦克道威尔(Jonathan McDowell)认为:“对于秘密卫星来说,战略司令部并没有给外界提供轨道信息,但是他们确实做了一个目录输入,增加了一个目录号码和归属国家。而这样一个录入意味着卫星有效载荷进入轨道,至少是在近地球的一个近地轨道上完成了。”
不过,战略司令部的发言人布鲁克·德沃尔特(Brook DeWalt)表示,卫星目录上暂时没有任何内容。这可能意味着该中心在添加完新的卫星条目之后,并没有任何补充,或者错误地添加了“美国280”。
未来数周内,会有天文爱好者对“Zuma”卫星进行搜索。“业余的天文爱好者们目前还没有看到它,也没有迹象表明它会被发现,因为它很可能不在正确的轨道上。”麦克道威尔说。
对于这颗卫星,现在可能出现的情况是,它在轨道上运行,但已经是一颗已经死亡的政府卫星,另一种情况则是它已经消失在地球大气层中。但无论哪种情况,除非有官方信息表明它的去向,否者鉴于Zuma是一个保密任务,外界很难得到一个直接答案。
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