Falcon 9 Block 5 | SDA Tranche 1 Transport Layer A
SpaceX launches Falcon 9 Block 5 carrying SDA Tranche 1 Transport Layer A from Space Launch Complex 4E, Vandenberg SFB, CA, USA at 2026-09-30 00:00:00Z. The operator has not published how precise that target time is. The date is still provisional and can move.
COUNTDOWN
FLIGHT PLAN
The window is instantaneous: the vehicle flies at T-0 or stands down to the next opportunity. Current date is a placeholder or rough estimation based on unreliable or interpreted sources.
FIELD KIT / OPTICS
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MISSION BRIEF
Tranche 1 Transport Layer A is one of six missions by the United States Space Force Space Development Agency (SDA) for the Proliferated Warfighter Space Architecture (PWSA) Tranche 1 Transport Layer constellation, which will provide assured, resilient, low-latency military data and connectivity worldwide to the full range of warfighter platforms from Low Earth Orbit satellites. The constellation will be interconnected with Optical Inter-Satellite Links (OISLs) which have significantly increased performance over existing radio frequency crosslinks. It is expected to operate over Ka band, have stereo coverage and be dynamically networked for simpler hand-offs, greater bandwidth and fault tolerance. This launch carries 21 satellites manufactured by Northrop Grumman.
SOURCE: LAUNCH LIBRARY 2 // THE SPACE DEVS
LAUNCH SITE
Space Launch Complex 4E
Vandenberg SFB, CA, USA, United States of America
DATUM WGS-84 // EQUIRECTANGULAR PROJECTION
COMMON QUESTIONS
What time does Falcon 9 Block 5 · SDA Tranche 1 Transport Layer A launch?
SpaceX is targeting 2026-09-30 00:00:00Z for Falcon 9 Block 5 | SDA Tranche 1 Transport Layer A. The operator has not published how precise that target time is. The window is instantaneous: the vehicle flies at T-0 or stands down to the next opportunity.
Where can I watch Falcon 9 Block 5 · SDA Tranche 1 Transport Layer A launch?
No official webcast has been published for Falcon 9 Block 5 | SDA Tranche 1 Transport Layer A yet. When SpaceX posts a feed it is linked from this page, and the live countdown here runs against the published T-0 in the meantime.
What is Falcon 9 Block 5 · SDA Tranche 1 Transport Layer A carrying?
Tranche 1 Transport Layer A is one of six missions by the United States Space Force Space Development Agency (SDA) for the Proliferated Warfighter Space Architecture (PWSA) Tranche 1 Transport Layer constellation, which will provide assured, resilient, low-latency military data and connectivity worldwide to the full range of warfighter platforms from Low Earth Orbit satellites.
Where does Falcon 9 Block 5 · SDA Tranche 1 Transport Layer A launch from?
Falcon 9 Block 5 | SDA Tranche 1 Transport Layer A lifts off from Space Launch Complex 4E, Vandenberg SFB, CA, USA, United States of America. The pad sits at 34.6320, -120.6110.