When Does Falcon 9 Block 5 | SDA Tranche 1 Tracking Layer A Launch?
Live Countdown to Liftoff
Falcon 9 Block 5 | SDA Tranche 1 Tracking Layer A is scheduled to lift off on Thursday, December 31, 2026 — 123 days from now. date tbd
Falcon 9 Block 5 | SDA Tranche 1 Tracking Layer A is scheduled to lift off Thursday, December 31, 2026 from Space Launch Complex 4E. Status: To Be Determined. Live countdown, updated daily as the window shifts.
Tranche 1 Tracking Layer A is one of five missions by the United States Space Force Space Development Agency (SDA) for the Proliferated Warfighter Space Architecture (PWSA) Tranche 1 Tracking Layer constellation, which will provide global indications, warning, tracking, and targeting of advanced missile threats, including hypersonic missile systems. This mission is flown by SpaceX. It is classified as a government/top secret mission. Liftoff is planned from Space Launch Complex 4E at Vandenberg SFB, CA, USA. Current status from Launch Library: To Be Determined. Launch windows shift often; this page is rebuilt every day with the latest scheduled time.
Falcon 9 Block 5 | SDA Tranche 1 Tracking Layer A is scheduled to lift off on Thursday, December 31, 2026. The countdown above updates live, so you always see exactly how many days, hours, and minutes are left.
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