York Space Systems has confirmed first contact and the healthy status of all 21 satellites launched September 10 from Vandenberg Space Force Base for the Space Development Agency's (SDA) Tranche 1 Transport Layer mission, part of the Proliferated Warfighter Space Architecture.

The satellites were deployed and checked within hours, a milestone that underscores York's high-rate production and operational efficiency. The achievement supports SDA's objective of creating a resilient, low-latency satellite communications network to strengthen U.S. and allied defense.

"Confirming health so quickly across 21 satellites is proof that York's high-rate production paired with disciplined mission operations delivers results. This success further highlights York's central role in enabling the DOD's vi

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