Vulcan | SDA Tranche 1 Tracking Layer B

Government/Top Secret

Time to liftoff

Targeting 2026

Target Window

2026

Exact time to be confirmed

Net Precision

Year

— Mission

SDA Tranche 1 Tracking Layer B

Polar Orbit· PO

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.

— Rocket

Vulcan

Diameter: 5.4 m

Launches

Success

Failures

— Launch Pad

Space Launch Complex 3E

Vandenberg SFB, CA

SLC-3E is a launch pad at Vandenberg Space Force Base. It was originally built for the MIDAS program and later used for various other missions. After a period of inactivity, it was refurbished in the early 2000s to launch Atlas V rockets. The pad is now being upgraded to accommodate the new Vulcan Centaur rocket. The last Atlas V launch from SLC-3E happened in November 2022, with the first Vulcan launch expected in 2025.

— Launch Provider

Commercial

United Launch Alliance

Est. 2006 · CEO: Mark Peller

United Launch Alliance (ULA) is a joint venture of Lockheed Martin Space Systems and Boeing Defense, Space & Security. ULA was formed in December 2006 by combining the teams at these companies which provide spacecraft launch services to the government of the United States. ULA launches from both coasts of the US. They launch their Atlas V vehicle from LC-41 in Cape Canaveral and LC-3E at Vandeberg. Their Delta IV launches from LC-37 at Cape Canaveral and LC-6 at Vandenberg.

175

Total

175

Success

Pending