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Northrop Grumman Completes CDR for the SDA’s Tranche 1 Tracking Layer

By Rachel Jewett

Thursday, November 16th, 2023

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Northrop Grumman Completes CDR for the SDA’s Tranche 1 Tracking Layer

Artist conception of Tranche 1 Tracking Layer in low-Earth orbit. (Northrop Grumman Photo)

Northrop Grumman [NOC] recently completed its critical design review (CDR) for 16 missile tracking satellites that will be part of the Space Development Agency’s (SDA) Tranche 1 Tracking Layer. Now that the CDR is complete, Northrop Grumman is cleared to begin production work on the space vehicles. The company announced the milestone on Wednesday. The Tranche 1 Tracking Layer will identify and track hypersonic weapons and advanced missiles, as part of the SDA’s Proliferated Warfighter Space Architecture (PWSA). Northrop Grumman received…

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