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延伸阅读
“胖五”究竟有多厉害?
此次发射,也是长征五号火箭的第二次发射任务。长征五号火箭是我国迄今为止研制出的体型最大,发射能力最大的运载火箭,因其体格粗壮,长征五号被关心航天的人们昵称为“胖五”。作为运载火箭的“重中之重”,大块头“胖五”究竟有多厉害?这次发射有何看点?
7月2日19时23分,搭载着实践十八号卫星的长征五号遥二火箭在中国文昌航天发射场点火升空。图为长征五号遥二运载火箭升空瞬间。中新社记者 骆云飞 摄
7月2日19时23分,搭载着实践十八号卫星的长征五号遥二火箭在中国文昌航天发射场点火升空。图为长征五号遥二运载火箭飞向苍穹。
运送卫星“巨无霸”:能力创新高度
此次长征五号遥二火箭送上太空的也是我国目前最大的一颗卫星——实践十八号新技术验证卫星,它同时也是我国下一代地球同步轨道卫星平台——东方红五号平台的技术验证卫星。
实践十八号卫星所使用的东方红五号平台,总重量最高可达9吨左右,和我国的空间实验室天宫二号差不多,远远大于一般只有4-5吨的普通卫星,因此被称作卫星“巨无霸”。而如果它将所有太阳翼帆板全部打开,端到端长度达到41米,基本上可以赶上一个小飞机了。
使用这样的设计,就可以使东方红五号卫星平台,拥有更高的功率,支持更多先进的星上设备,创造中国航天的卫星“新高度”。
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