Starlink Group 15-12

Mission

Starlink Group 15-12 on Falcon 9 Block 5. Sun 14 Dec 2025, 05:49:00 UTC. Reported outcome: Success. Launch site: Space Launch Complex 4E. Source: Launch Library 2.

A batch of 27 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.

Mission type

Communications

Orbit

Low Earth Orbit

Programmes: Starlink

Launch timeline

Times are relative to liftoff.

1. T+1 min 12 sSun 14 Dec, 06:50 CET

   Max-Q

   Maximum dynamic pressure

2. T+2 min 26 sSun 14 Dec, 06:51 CET

   MECO

   Cut-off of the main engine

3. T+2 min 29 sSun 14 Dec, 06:51 CET

   Stage 2 Separation

   Separation of the second stage from the first

4. T+2 min 36 sSun 14 Dec, 06:51 CET

   SES-1

   First start of the second engine

5. T+2 min 54 sSun 14 Dec, 06:51 CET

   Fairing Separation

   Separation of the payload fairing

6. T+6 min 10 sSun 14 Dec, 06:55 CET

   Entry Burn Startup

   Start of the atmospheric entry burn

7. T+6 min 33 sSun 14 Dec, 06:55 CET

   Entry Burn Shutdown

   End of the atmospheric entry burn

8. T+8 min 2 sSun 14 Dec, 06:57 CET

   Stage 1 Landing Burn

   Start of the first stage landing burn

9. T+8 min 25 sSun 14 Dec, 06:57 CET

   Stage 1 Landing

   Landing of the first stage

10. T+8 min 39 sSun 14 Dec, 06:57 CET

    SECO-1

    First cut-off of the second engine

11. T+54 min 15 sSun 14 Dec, 07:43 CET

    SES-2

    Second start of the second engine

12. T+54 min 17 sSun 14 Dec, 07:43 CET

    SECO-2

    Second cut-off of the second engine

13. T+1 h 3 min 8 sSun 14 Dec, 07:52 CET

    Starlink Deployment

    Deployment of the Starlink stack from the rocket

Slip history

Changes recorded by Space Right Now

No changes since we started tracking on Sat 10 Oct 2026, 11:18 UTC.

Launch pad

Space Launch Complex 4E

Vandenberg SFB, CA, USA (US)

Coordinates: 34.632, -120.611