Falcon 9 Block 5 | Starlink Group 12-21

A batch of 21 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.

Communications · Low Earth Orbit (LEO)

• B1069 · flight 22 · Autonomous Spaceport Drone Ship @ A Shortfall of Gravitas · landed ✓ · last flew Falcon 9 Block 5 | Starlink Group 12-3 · zone record 161/162

• SpaceX Starlink Group 12-21 — The Space Devs
• SpaceX - Falcon 9 - Starlink 12-21 - SLC-40 - Cape Canaveral SFS - March 12, 2025 — SPACE AFFAIRS
• Watch Live: SpaceX Falcon 9 rocket launches 21 Starlink satellites from Cape Canaveral — Spaceflight Now
• 🚀 SpaceX Falcon 9 Launches Starlink Group 12-21 — NASASpaceflight
• Starlink Mission — SpaceX

1. T−38MGO for Prop Load
2. T−35MStage 1 LOX Load
3. T−35MProp 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+1M13SMax-Q
12. T+2M27SMECO
13. T+2M31SStage 2 Separation
14. T+2M38SSES-1
15. T+3MFairing Separation
16. T+6M20SEntry Burn Startup
17. T+6M42SEntry Burn Shutdown
18. T+8M1SStage 1 Landing Burn
19. T+8M25SStage 1 Landing
20. T+8M40SSECO-1
21. T+53M58SSES-2
22. T+54MSECO-2
23. T+1H5M7SStarlink Deployment

• Launch success.

  Cosmic_Penguin · 3/13/2025 · source

• Liftoff.

  Cosmic_Penguin · 3/13/2025 · source

• Unofficial Re-stream by SPACE AFFAIRS has started

  LL2 · 3/13/2025 · source

• New T-0.

  Cosmic_Penguin · 3/12/2025 · source

• Tweaked T-0.

  Cosmic_Penguin · 3/12/2025 · source

• Updated launch weather.

  Cosmic_Penguin · 3/12/2025 · source

• Delayed to March 13 UTC.

  Cosmic_Penguin · 3/12/2025 · source

• New T-0.

  Cosmic_Penguin · 3/12/2025 · source

• Scrubbed for the day due to high winds.

  Cosmic_Penguin · 3/11/2025 · source

• Launch on hold.

  Cosmic_Penguin · 3/11/2025 · source