The Space Development Agency (SDA) has named the TTL series the Proliferated Warfighter Space Architecture (PWSA). It is a constellation of satellites for global military connectivity including detection of hypersonic missiles.

The launch date is currently targeted for Wednesday, September 10, 2025 at 2:12 PM (UTC).

On launch day, check back here to watch the live stream! (if available)

Watch Falcon 9 launch the Space Development Agency’s first Tranche 1 mission https://t.co/iahb8ToSW9
— SpaceX (@SpaceX) September 4, 2025

All changes are verified for accuracy before being published!
Provider	SpaceX
Vehicle	Falcon 9
Location	SLC-4E Vandenberg SFB California, United States
All dates and times should be submitted in UTC timezone. Use Estimated Date if you don't know the official launch date and time; otherwise, use Window Opens/Closes and/or Planned T-0, which will override the Estimated Date.
— Estimated Date —
Date
— Window Opens —
Date
Time
Launch Date	Wednesday, September 10, 2025
Launch Time	2:12 PM (UTC)
Launch Time (Pad)
— Planned T-0 —
Date	Wednesday, September 10, 2025
Time	2:12 PM (UTC)
— Window Closes —
Date	Wednesday, September 10, 2025
Time	2:12 PM (UTC)

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Series: SDA TTL

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SDA Tranche 1 Transport B

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