SDA Tranche 1 Tracking Layer B Mission
Launch Service Provider
Vehicle
Mission
SDA Tranche 1 Tracking Layer B
Mission Type
Government/Top Secret
Destination
Polar Orbit
Tranche 1 Tracking Layer B 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.
Last Update: NET 2026.
🔔 Set up an email alert for upcoming launches
🎯 Never miss a launch
📆 Stay up to date
Get a weekly email containing all launches scheduled for the coming week.
