预计2022年组网完成？空X和L3Harris中标，空客雷神十分不满
转自：Spacenews
https://spacenews.com/space-development-agency-to-reevaluate-proposals-for-missile-tracking-satellites/
Companies that competed earlier this year for Space Development Agency satellite contracts awarded to L3Harris and SpaceX were asked to resubmit their proposals following several protests of the awards.
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On Oct. 5 the Space Development Agency awarded SpaceX a $149 million contract and L3Harris a $193.5 million contract to each build four satellites to detect and track ballistic and hypersonic missiles. These eight satellites are known as Tracking Layer Tranche 0.

图片是L3Harris的标书
今年早些时候竞标，L3Harris和SpaceX的太空发展署卫星合同，在多次抗议该授权之后，被要求重新提交其提案。
但空中客车公司和雷神公司分别于10月28日和11月3日向政府问责办公室提出抗议，投诉太空发展局10月5日授予L3Harris和SpaceX的合同。
10月5日，太空发展局给与SpaceX 1.49亿美元的合同，给与L3Harris 1.935亿美元的合同，分别建造四颗卫星，以探测和跟踪弹道和高超音速导弹。这八颗卫星被称为“跟踪层批次0（Tracking Layer Tranche 0）”。