SDA Tranche 1 Tracking Layer A
Falcon 9 Block 5, SpaceX
Space Launch Complex 4E, Vandenberg SFB, CA, USA
Launch time
No earlier than
NET Q4 2026
Current date is a placeholder or rough estimation based on unreliable or interpreted sources.
How sure is this date?
The source gives quarter 4 precision. Launch plans can change.
Source updated
UpdatedSlip history
No changes since we started tracking on .
- LL2 update
NET May-Q2 (unclear which of the lettered groups will fly first).
Read the source update - LL2 update
Adding launch
Read the source update
Mission
SDA Tranche 1 Tracking Layer A on Falcon 9 Block 5 from Space Launch Complex 4E. Launch time, status and recorded date changes from Launch Library 2.
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.
- Mission type
- Government/Top Secret
- Orbit
- Polar Orbit
Launch timeline
No timeline has been provided by the source.
Launch pad
Space Launch Complex 4E
Vandenberg SFB, CA, USA (US)
Coordinates: 34.632, -120.611
View launch pad on a map