Starlink Group 12-10

Mission

Starlink Group 12-10 on Falcon 9 Block 5. Tue 29 Apr 2025, 02:34:10 UTC. Reported outcome: Success. Launch site: Launch Complex 39A. Source: Launch Library 2.

A batch of 23 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-38 minTue 29 Apr, 03:56 CEST

   GO for Prop Load

   Launch director verifies go for propellant load

2. T-35 minTue 29 Apr, 03:59 CEST

   Stage 1 LOX Load

   Start of liquid oxygen loading in the first stage

3. T-35 minTue 29 Apr, 03:59 CEST

   Prop Load

   Start of propelland loading

4. T-16 minTue 29 Apr, 04:18 CEST

   Stage 2 LOX Load

   Start of liquid oxygen loading in the second stage

5. T-7 minTue 29 Apr, 04:27 CEST

   Engine Chill

   Start of engine chilling

6. T-1 minTue 29 Apr, 04:33 CEST

   Startup

   The onboard computer takes control over the countdown and runs last checks

7. T-1 minTue 29 Apr, 04:33 CEST

   Tank Press

   Fuel tanks are pressurized to flight levels

8. T-45 sTue 29 Apr, 04:33 CEST

   GO for Launch

   Launch director verifies go for launch

9. T-3 sTue 29 Apr, 04:34 CEST

   Ignition

   Start of the engine ignition sequence

10. T-0Tue 29 Apr, 04:34 CEST

    Liftoff

    First upwards movement of the rocket

11. T+1 min 11 sTue 29 Apr, 04:35 CEST

    Max-Q

    Maximum dynamic pressure

12. T+2 min 25 sTue 29 Apr, 04:36 CEST

    MECO

    Cut-off of the main engine

13. T+2 min 28 sTue 29 Apr, 04:36 CEST

    Stage 2 Separation

    Separation of the second stage from the first

14. T+2 min 35 sTue 29 Apr, 04:36 CEST

    SES-1

    First start of the second engine

15. T+3 min 4 sTue 29 Apr, 04:37 CEST

    Fairing Separation

    Separation of the payload fairing

16. T+6 min 3 sTue 29 Apr, 04:40 CEST

    Entry Burn Startup

    Start of the atmospheric entry burn

17. T+6 min 28 sTue 29 Apr, 04:40 CEST

    Entry Burn Shutdown

    End of the atmospheric entry burn

18. T+7 min 46 sTue 29 Apr, 04:41 CEST

    Stage 1 Landing Burn

    Start of the first stage landing burn

19. T+8 min 15 sTue 29 Apr, 04:42 CEST

    Stage 1 Landing

    Landing of the first stage

20. T+8 min 39 sTue 29 Apr, 04:42 CEST

    SECO-1

    First cut-off of the second engine

21. T+54 min 5 sTue 29 Apr, 05:28 CEST

    SES-2

    Second start of the second engine

22. T+54 min 6 sTue 29 Apr, 05:28 CEST

    SECO-2

    Second cut-off of the second engine

23. T+1 h 5 min 13 sTue 29 Apr, 05:39 CEST

    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, 11:14 UTC.

Launch pad

Launch Complex 39A

Kennedy Space Center, FL, USA (US)

Coordinates: 28.60822681, -80.60428186