SDA Tranche 2 Transport Layer B
Vulcan, United Launch Alliance
Space Launch Complex 3E, Vandenberg SFB, CA, USA
Launch time
No earlier than
NET 2026
Current date is a placeholder or rough estimation based on unreliable or interpreted sources.
How sure is this date?
The source gives year precision. Launch plans can change.
Source updated
UpdatedSlip history
No changes since we started tracking on .
- LL2 update
NET September 2026.
Read the source update - LL2 update
Adding launch
Read the source update
Mission
SDA Tranche 2 Transport Layer B on Vulcan from Space Launch Complex 3E. Launch time, status and recorded date changes from Launch Library 2.
Classified mission launched by the Space Development Agency (SDA) for Tranche 2 Transport Layer.
- Mission type
- Government/Top Secret
- Orbit
- Polar Orbit
Launch timeline
No timeline has been provided by the source.
Launch pad
Space Launch Complex 3E
Vandenberg SFB, CA, USA (US)
Coordinates: 34.64, -120.5895
View launch pad on a map