ROCKET ASSESSOR
Falcon 9 Block 5 | SDA Tranche 1 Transport Layer F: launch weather verdict
Will SDA Tranche 1 Transport Layer F launch on time?
Track record: across 60 resolved launches, directional verdicts (GO / NO-GO) matched the outcome 67% of the time. Every verdict is frozen 24 hours before launch, and the full record, including the misses, is at rocketassessor.com/accuracy.
Watch it liveEmbeddable widget
Launch details
| Vehicle | Falcon 9 Block 5 |
|---|---|
| Launch provider | SpaceX |
| Launch time (NET) | Thu, 31 Dec 2026 00:00:00 UTC |
| Launch site | Space Launch Complex 4E, Vandenberg SFB, CA, USA |
| Orbit | PO |
| Official status | To Be Determined |
What is the SDA Tranche 1 Transport Layer F mission?
Tranche 1 Transport Layer F 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.
How is this verdict calculated?
The launch starts at 100 points and loses points for sustained wind, gusts, cloud cover, chance of precipitation and thunderstorm energy at Vandenberg SFB, CA, USA at the launch hour. 75–100 is GO, 50–74 is CAUTION, below 50 is NO-GO. This is an independent, indicative assessment, not the provider's official launch commit criteria.
Other upcoming launches from Vandenberg SFB, CA, USA
- Transporter 18 (Dedicated SSO Rideshare) · 2026-10-01 · GO
- SDA Tranche 1 Transport Layer A · 2026-10-05
- Starlink Group 15-25 · 2026-10-10
- SDA Tranche 2 Transport Layer E · 2026-12-31
- SDA Tranche 1 Tracking Layer A · 2026-12-31