Starlink Group 17-28

Slip history

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

1. Sun 21 Jun 2026, 17:40 UTCLL2 update

   Launch success.

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2. Sun 21 Jun 2026, 16:39 UTCLL2 update

   Liftoff!

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3. Sun 21 Jun 2026, 16:27 UTCLL2 update

   Unofficial Re-stream by SPACE AFFAIRS has started

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4. Sun 21 Jun 2026, 13:40 UTCLL2 update

   Now targeting Jun 21 at 16:39 UTC

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5. Sun 21 Jun 2026, 11:02 UTCLL2 update

   Now targeting Jun 21 at 16:21 UTC

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6. Sat 20 Jun 2026, 16:07 UTCLL2 update

   Now targeting Jun 21 at 15:12 UTC

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7. Wed 17 Jun 2026, 18:23 UTCLL2 update

   Now targeting Jun 21 at 14:00 UTC

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8. Wed 10 Jun 2026, 17:58 UTCLL2 update

   Added launch.

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Mission

Starlink Group 17-28 on Falcon 9 Block 5 from Space Launch Complex 4E. Launch time, status and recorded date changes from Launch Library 2.

A batch of 24 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 minSun 21 Jun, 18:01 CEST

   GO for Prop Load

   Launch director verifies go for propellant load

2. T-35 minSun 21 Jun, 18:04 CEST

   Prop Load

   Start of propelland loading

3. T-35 minSun 21 Jun, 18:04 CEST

   Stage 1 LOX Load

   Start of liquid oxygen loading in the first stage

4. T-16 minSun 21 Jun, 18:23 CEST

   Stage 2 LOX Load

   Start of liquid oxygen loading in the second stage

5. T-7 minSun 21 Jun, 18:32 CEST

   Engine Chill

   Start of engine chilling

6. T-1 minSun 21 Jun, 18:38 CEST

   Tank Press

   Fuel tanks are pressurized to flight levels

7. T-1 minSun 21 Jun, 18:38 CEST

   Startup

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

8. T-45 sSun 21 Jun, 18:38 CEST

   GO for Launch

   Launch director verifies go for launch

9. T-3 sSun 21 Jun, 18:39 CEST

   Ignition

   Start of the engine ignition sequence

10. T-0Sun 21 Jun, 18:39 CEST

    Liftoff

    First upwards movement of the rocket

11. T+1 min 9 sSun 21 Jun, 18:40 CEST

    Max-Q

    Maximum dynamic pressure

12. T+2 min 26 sSun 21 Jun, 18:41 CEST

    MECO

    Cut-off of the main engine

13. T+2 min 30 sSun 21 Jun, 18:41 CEST

    Stage 2 Separation

    Separation of the second stage from the first

14. T+2 min 37 sSun 21 Jun, 18:41 CEST

    SES-1

    First start of the second engine

15. T+2 min 58 sSun 21 Jun, 18:42 CEST

    Fairing Separation

    Separation of the payload fairing

16. T+6 minSun 21 Jun, 18:45 CEST

    Entry Burn Startup

    Start of the atmospheric entry burn

17. T+6 min 23 sSun 21 Jun, 18:45 CEST

    Entry Burn Shutdown

    End of the atmospheric entry burn

18. T+7 min 57 sSun 21 Jun, 18:47 CEST

    Stage 1 Landing Burn

    Start of the first stage landing burn

19. T+8 min 20 sSun 21 Jun, 18:47 CEST

    Stage 1 Landing

    Landing of the first stage

20. T+8 min 40 sSun 21 Jun, 18:47 CEST

    SECO-1

    First cut-off of the second engine

21. T+54 min 58 sSun 21 Jun, 19:34 CEST

    SES-2

    Second start of the second engine

22. T+54 min 59 sSun 21 Jun, 19:34 CEST

    SECO-2

    Second cut-off of the second engine

23. T+1 h 3 min 50 sSun 21 Jun, 19:42 CEST

    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