Starlink Group 12-16

Mission

Starlink Group 12-16 on Falcon 9 Block 5. Sat 15 Mar 2025, 11:35:10 UTC. Reported outcome: Success. Launch site: Space Launch Complex 40. 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 minSat 15 Mar, 11:57 CET

   GO for Prop Load

   Launch director verifies go for propellant load

2. T-35 minSat 15 Mar, 12:00 CET

   Stage 1 LOX Load

   Start of liquid oxygen loading in the first stage

3. T-35 minSat 15 Mar, 12:00 CET

   Prop Load

   Start of propelland loading

4. T-16 minSat 15 Mar, 12:19 CET

   Stage 2 LOX Load

   Start of liquid oxygen loading in the second stage

5. T-7 minSat 15 Mar, 12:28 CET

   Engine Chill

   Start of engine chilling

6. T-1 minSat 15 Mar, 12:34 CET

   Tank Press

   Fuel tanks are pressurized to flight levels

7. T-1 minSat 15 Mar, 12:34 CET

   Startup

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

8. T-45 sSat 15 Mar, 12:34 CET

   GO for Launch

   Launch director verifies go for launch

9. T-3 sSat 15 Mar, 12:35 CET

   Ignition

   Start of the engine ignition sequence

10. T-0Sat 15 Mar, 12:35 CET

    Liftoff

    First upwards movement of the rocket

11. T+1 min 11 sSat 15 Mar, 12:36 CET

    Max-Q

    Maximum dynamic pressure

12. T+2 min 26 sSat 15 Mar, 12:37 CET

    MECO

    Cut-off of the main engine

13. T+2 min 29 sSat 15 Mar, 12:37 CET

    Stage 2 Separation

    Separation of the second stage from the first

14. T+2 min 36 sSat 15 Mar, 12:37 CET

    SES-1

    First start of the second engine

15. T+3 min 5 sSat 15 Mar, 12:38 CET

    Fairing Separation

    Separation of the payload fairing

16. T+6 min 2 sSat 15 Mar, 12:41 CET

    Entry Burn Startup

    Start of the atmospheric entry burn

17. T+6 min 27 sSat 15 Mar, 12:41 CET

    Entry Burn Shutdown

    End of the atmospheric entry burn

18. T+7 min 46 sSat 15 Mar, 12:42 CET

    Stage 1 Landing Burn

    Start of the first stage landing burn

19. T+8 min 10 sSat 15 Mar, 12:43 CET

    Stage 1 Landing

    Landing of the first stage

20. T+8 min 39 sSat 15 Mar, 12:43 CET

    SECO-1

    First cut-off of the second engine

21. T+54 min 1 sSat 15 Mar, 13:29 CET

    SES-2

    Second start of the second engine

22. T+54 min 3 sSat 15 Mar, 13:29 CET

    SECO-2

    Second cut-off of the second engine

23. T+1 h 5 min 10 sSat 15 Mar, 13:40 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, 11:14 UTC.

Launch pad

Space Launch Complex 40

Cape Canaveral SFS, FL, USA (US)

Coordinates: 28.56194122, -80.57735736