Starlink Group 15-25

Slip history

No changes since we started tracking on Sat 10 Oct 2026, 10:32 UTC.

1. Thu 8 Oct 2026, 14:13 UTCLL2 update

   Now targeting Oct 12 at 23:00 UTC

   Read the source update
2. Wed 7 Oct 2026, 20:48 UTCLL2 update

   Now targeting Oct 11 at 23:00 UTC

   Read the source update
3. Wed 30 Sept 2026, 23:22 UTCLL2 update

   Now targeting Oct 10 at 23:00 UTC

   Read the source update
4. Tue 22 Sept 2026, 01:25 UTCLL2 update

   Updated launch window.

   Read the source update
5. Mon 21 Sept 2026, 23:35 UTCLL2 update

   Delayed to NET October 10.

   Read the source update
6. Sun 20 Sept 2026, 16:11 UTCLL2 update

   Now targeting Sep 30 at 16:00 UTC

   Read the source update
7. Sat 19 Sept 2026, 21:07 UTCLL2 update

   Added launch.

   Read the source update

Mission

Starlink Group 15-25 on Falcon 9 Block 5 from Space Launch Complex 4E. Launch time, status and recorded date changes from 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. Clock times are not shown while T-0 is unconfirmed or on hold.

1. T-38 min

   GO for Prop Load

   Launch director verifies go for propellant load

2. T-35 min

   Prop Load

   Start of propelland loading

3. T-35 min

   Stage 1 LOX Load

   Start of liquid oxygen loading in the first stage

4. T-16 min

   Stage 2 LOX Load

   Start of liquid oxygen loading in the second stage

5. T-7 min

   Engine Chill

   Start of engine chilling

6. T-1 min

   Startup

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

7. T-1 min

   Tank Press

   Fuel tanks are pressurized to flight levels

8. T-45 s

   GO for Launch

   Launch director verifies go for launch

9. T-3 s

   Ignition

   Start of the engine ignition sequence

10. T-0

    Liftoff

    First upwards movement of the rocket

11. T+1 min 8 s

    Max-Q

    Maximum dynamic pressure

12. T+2 min 26 s

    MECO

    Cut-off of the main engine

13. T+2 min 29 s

    Stage 2 Separation

    Separation of the second stage from the first

14. T+2 min 36 s

    SES-1

    First start of the second engine

15. T+2 min 58 s

    Fairing Separation

    Separation of the payload fairing

16. T+6 min 1 s

    Entry Burn Startup

    Start of the atmospheric entry burn

17. T+6 min 24 s

    Entry Burn Shutdown

    End of the atmospheric entry burn

18. T+8 min

    Stage 1 Landing Burn

    Start of the first stage landing burn

19. T+8 min 23 s

    Stage 1 Landing

    Landing of the first stage

20. T+8 min 39 s

    SECO-1

    First cut-off of the second engine

21. T+53 min 5 s

    SES-2

    Second start of the second engine

22. T+53 min 6 s

    SECO-2

    Second cut-off of the second engine

23. T+1 h 1 min 57 s

    Starlink Deployment

    Deployment of the Starlink stack from the rocket

Launch pad

Space Launch Complex 4E

Vandenberg SFB, CA, USA (US)

Coordinates: 34.632, -120.611