SDA Tranche 1 Tracking Layer D
NextMission AnnouncedT-720:00:00
The mission
Tranche 1 Tracking Layer D 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 timeline
Mission Announced
Official mission announcement and payload assignment
- Mission AnnouncedT-720:00:0012:00 AM UTC
- Vehicle RolloutT-48:00:0012:00 AM UTC
- Wet Dress RehearsalT-24:00:0012:00 AM UTC
Where it leaves Earth
Launch site
Ground vector
Space Launch Complex 3E
Vandenberg SFB, CA, USA
- Latitude
- 34.640°N
- Longitude
- 120.590°W
Can I see this?
Distance and a plain visibility call from a place you choose. Trajectory is not modeled — night launches travel farther across the sky than daylight ones.
Save a viewing place to judge this pad from where you stand.
Range weather
Launch commit criteria
Clear — tracking no weather issues at this time.
- Primary concern
- No weather issues
- Rule count
- 0
- Temperature
- Not reported
- Surface wind
- Not reported
12:00 AM UTC – 12:00 AM UTC
Vehicle & provider
Schedule history
No meaningful launch-time or status changes recorded.