SpaceX将为美国太空部队发射升级版GPS卫星

新浪科技2021-06-18

新浪科技讯北京时间6月18日凌晨消息，据报道，在美国东部时间周四晚些时候，埃隆·马斯克（Elon Musk）旗下太空探索技术公司SpaceX将为美国太空部队发射一颗升级版GPS卫星进入近地轨道。这将是SpaceX及其“猎鹰9号”（Falcon 9）火箭今年的第19次发射，该公司计划在卡纳维拉尔角（Cape Canaveral）太空发射场进行此次发射，时间窗口为15分钟。这枚火箭顶端将搭载由...

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第N次大变革大分流
2021-06-18
第N次大变革大分流
诱多中概股的账号怎么跑这来了
NiNinini
2021-06-18
NiNinini
我觉得有道理
Wonderlust
2021-06-18
Wonderlust
特斯拉
- NiNinini:
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III-SV05卫星。如果一切按计划进行，则这将是迄今为止第五次发射升级版下一代GPS III卫星。\n这些升级版GPS卫星由洛克希德马丁公司制造，是有史以来建造的最复杂的航天器之一。该公司的代表曾在此前表示，升级版卫星拥有比此前版本更强大的抗干扰能力和更强大的信号以提高精度。\n此次发射的是美国军方10颗升级版GPS III卫星中的第五颗，这些卫星和目前已在轨道上运行的卫星将帮助为全球超过40亿用户提供定位、导航和定时服务。GPS III-SV05卫星将取代20年前发射的老版卫星。\n美国太空部队官员去年宣布，美国军方已经批准SpaceX用之前飞行过的火箭发射国家安全有效载荷。\n另外，SpaceX最近还已获准回收用于国家安全任务的猎鹰9号助推器的第一级，这在以前是不被允许的。\n此次任务将是第一次使用回收后的猎鹰9号火箭进行的飞行，这枚火箭在把GPS卫星送入太空后，将在海上的一个浮动平台上降落。SpaceX的海上回收平台““Just Read the Instructions”就停靠在大西洋中，等待回收这枚火箭。升空约9分钟后，这枚二级火箭的第一级预计将降落在这个巨型平台的甲板上。SpaceX还在此次任务中让一个名为“Hos Briarwood”的新回收平台首次亮相，用以回收蛤壳状的有效载荷整流罩，这些整流罩将在GPS III SV05卫星上升过程中为其提供保护，随后则将通过降落伞回落到地球。\n卡纳维拉尔角太空发射场所在的海岸目前处于夏季风暴季节，但美国太空部队的气象官员预测，发射时天气条件有利的可能性为70%，令人担心的主要因素是电场强度、可能会有的高空风切变和积云。\n如果SpaceX今天无法发射GPS III 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