Falcon 9 Block 5 | Cygnus CRS-2 NG-23 (S.S. William “Willie” C. McCool)

This is the 23rd flight of the Northrop Grumman's uncrewed resupply spacecraft Cygnus and its 22nd flight to the International Space Station under the Commercial Resupply Services contract with NASA.

Resupply · Low Earth Orbit (LEO)

• B1094 · flight 4 · Return to Launch Site @ Landing Zone 2 · landed ✓ · last flew Falcon 9 Block 5 | Crew-11 · zone record 17/17

• NASA’s Northrop Grumman Commercial Resupply Services 23 Launch — NASA
• NASA’s Northrop Grumman Commercial Resupply Services 23 Launch — NASA
• NG-23 Mission — SpaceX
• Watch Live: SpaceX Falcon 9 rocket to launch space station cargo mission — Spaceflight Now
• SpaceX Falcon 9 Launches CRS NG-23 to the ISS — NASASpaceflight

1. T−38MGO for Prop Load
2. T−35MProp Load
3. T−35MStage 1 LOX Load
4. T−16MStage 2 LOX Load
5. T−7MEngine Chill
6. T−1MTank Press
7. T−1MStartup
8. T−45SGO for Launch
9. T−3SIgnition
10. P0DLiftoff
11. T+1M12SMax-Q
12. T+2M12SMECO
13. T+2M16SStage 2 Separation
14. T+2M24SSES-1
15. T+2M29SBooster Boostback Burn Startup
16. T+2M52SFairing Separation
17. T+3M21SBooster Boostback Burn Shutdown
18. T+6M10SEntry Burn Startup
19. T+6M30SEntry Burn Shutdown
20. T+7M21SStage 1 Landing Burn
21. T+7M54SStage 1 Landing
22. T+8M31SSECO-1
23. T+14M33SPayload Separation

• Spacecraft in operation with solar arrays deployed.

  Cosmic_Penguin · 9/15/2025 · source

• Spacecraft separation.

  Cosmic_Penguin · 9/14/2025 · source

• Liftoff.

  Cosmic_Penguin · 9/14/2025 · source

• Official Webcast by NASA has started

  LL2 · 9/14/2025 · source

• Updated launch weather, 85% GO.

  Cosmic_Penguin · 9/14/2025 · source

• Tweaked T-0.

  Cosmic_Penguin · 9/13/2025 · source

• Weather is 75% favorable for launch.

  Cosmic_Penguin · 9/13/2025 · source

• Updated launch weather, 70% GO.

  Cosmic_Penguin · 9/12/2025 · source

• Tweaked T-0.

  Cosmic_Penguin · 9/7/2025 · source

• Moved up to September 14.

  Cosmic_Penguin · 9/5/2025 · source