任务档案 · MISSION
NROL-22 (Trumpet 4)
美国空军 · Delta IV M+(4,2) · Space Launch Complex 6
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任务简介
这些航天器可能是运行在闪电轨道上的Trumpet SIGINT卫星的替代品。由于名称未知，此处将其称为“Trumpet后续型”。这些卫星可能被命名为Raven。它们很可能使用大型可展开碟形天线来收集信号。天线和电子技术的进步使得其尺寸相比前代Trumpet大幅减小。
原文
These spacecraft are probably the replacement for the Trumpet SIGINT satellites operating in a Molniya orbit. As no name is known, these are referred here as "Trumpet Follow On". Possibly these satellites might be named Raven. These satellite most likely use a large, unfurlable dish antenna to collect the signals. Advances in both antenna and electronics technologies have allowed for a large reduction in size compared the Trumpet predecessors.
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