Mission Report · Everything Space
Falcon 9 launches SDA Tranche 1 Transport Layer A from Vandenberg SFB
SpaceX's Falcon 9 Block 5 lifted off from Space Launch Complex 4E at Vandenberg SFB, CA, USA on 10 Oct 2026 07:39:44 UTC. The flight succeeded.
The flight
The first stage, B1103, was making its 6th flight.
It landed on Landing Zone 4, 0 km downrange.
The payload was bound for Polar Orbit.
The mission
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.
Payload description as recorded by Launch Library 2.
By the numbers
SpaceX has now flown 740 launches in total. Its run of consecutive successful launches stands at 225.
It was the 303rd launch from Space Launch Complex 4E.
| Liftoff | 10 Oct 2026 07:39:44 UTC |
|---|---|
| Outcome | Launch Successful |
| Vehicle | Falcon 9 Block 5 |
| Provider | SpaceX |
| Pad | Space Launch Complex 4E |
| Target orbit | Polar Orbit |
| First stage | B1103 (flight 6) |
| Recovery | Landed — Landing Zone 4 |
Written by Everything Space from Launch Library 2’s record of this flight — every figure above comes from that record. Fetched Fri, 23 Oct 2026 19:58:30 GMT.