Falcon 9 Block 5 | SDA Tranche 1 Transport Layer C

Tranche 1 Transport Layer C is one of six missions by the United States Space Force Space Development Agency (SDA) for the Proliferated Warfighter Space Architecture (PWSA) Tranche 1 Transport Layer constellation, which will provide assured, resilient, low-latency military data and connectivity worldwide to the full range of warfighter platforms from Low Earth Orbit satellites. The constellation will be interconnected with Optical Inter-Satellite Links (OISLs) which have significantly increased performance over existing radio frequency crosslinks. It is expected to operate over Ka band, have stereo coverage and be dynamically networked for simpler hand-offs, greater bandwidth and fault tolerance. This launch carries 21 satellites manufactured by Lockheed Martin.

Government/Top Secret · Polar Orbit (PO)

• B1093 · flight 7 · Autonomous Spaceport Drone Ship @ Of Course I Still Love You · landed ✓ · last flew Falcon 9 Block 5 | SDA Tranche 1 Transport Layer B · zone record 209/217

• SpaceX SDA Tranche 1 Transport Layer C — The Space Devs
• Watch live: SpaceX launches SDA Tranche 1 satellites from California on Falcon 9 rocket — Spaceflight Now
• SDA Tranche 1 Transport Mission — SpaceX
• Watch SpaceX launch Tranche 1 Transport Layer C for Space Force! — Everyday Astronaut

1. P0DLiftoff
2. T+1M12SMax-Q
3. T+2M29SMECO
4. T+2M33SStage 2 Separation
5. T+2M40SSES-1
6. T+3M16SFairing Separation
7. T+6M33SEntry Burn Startup
8. T+6M58SEntry Burn Shutdown
9. T+8M17SStage 1 Landing Burn
10. T+8M33SSECO-1
11. T+8M41SStage 1 Landing

• Launch success.

  Cosmic_Penguin · 10/16/2025 · source

• Payload separation.

  Cosmic_Penguin · 10/16/2025 · source

• Unofficial Re-stream by SPACE AFFAIRS has started

  LL2 · 10/15/2025 · source

• Liftoff.

  Cosmic_Penguin · 10/15/2025 · source

• Now targeting Oct 15 at 23:06 UTC

  Cosmic_Penguin · 10/15/2025 · source

• Now targeting Oct 15 at 23:04 UTC

  Cosmic_Penguin · 10/15/2025 · source

• Scrubbed for the day.

  Cosmic_Penguin · 10/14/2025 · source

• Holding at T-37:31.

  Cosmic_Penguin · 10/14/2025 · source

• Tweaked T-0.

  Cosmic_Penguin · 10/14/2025 · source

• Tweaked T-0.

  Cosmic_Penguin · 10/13/2025 · source