O3b mPower 11-13

Slip history

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

1. Sun 13 Sept 2026, 23:09 UTCLL2 update

   Launch success.

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2. Sun 13 Sept 2026, 19:39 UTCLL2 update

   All spacecraft have separated.

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3. Sun 13 Sept 2026, 18:50 UTCLL2 update

   Liftoff.

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4. Sun 13 Sept 2026, 18:33 UTCLL2 update

   Unofficial Re-stream by SPACE AFFAIRS has started

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5. Sat 12 Sept 2026, 20:28 UTCLL2 update

   Updated launch weather, 60% GO at start of window (40% at end).

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6. Wed 9 Sept 2026, 15:20 UTCLL2 update

   GO for launch.

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7. Fri 4 Sept 2026, 19:21 UTCLL2 update

   NET September 13, TBC.

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8. Wed 4 Mar 2026, 16:00 UTCLL2 update

   NET September.

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Mission

O3b mPower 11-13 on Falcon 9 Block 5 from Space Launch Complex 40. Launch time, status and recorded date changes from Launch Library 2.

3 high-throughput communications satellites in Medium Earth Orbit (MEO) built by Boeing and operated by SES.

Mission type

Communications

Orbit

Medium Earth Orbit

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

   Stage 1 LOX Load

   Start of liquid oxygen loading in the first stage

3. T-35 min

   Prop Load

   Start of propelland loading

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 12 s

    Max-Q

    Maximum dynamic pressure

12. T+2 min 27 s

    MECO

    Cut-off of the main engine

13. T+2 min 31 s

    Stage 2 Separation

    Separation of the second stage from the first

14. T+2 min 37 s

    SES-1

    First start of the second engine

15. T+3 min 18 s

    Fairing Separation

    Separation of the payload fairing

16. T+6 min 20 s

    Entry Burn Startup

    Start of the atmospheric entry burn

17. T+6 min 44 s

    Entry Burn Shutdown

    End of the atmospheric entry burn

18. T+8 min 2 s

    SECO-1

    First cut-off of the second engine

19. T+8 min 23 s

    Stage 1 Landing Burn

    Start of the first stage landing burn

20. T+8 min 46 s

    Stage 1 Landing

    Landing of the first stage

21. T+29 min 51 s

    SES-2

    Second start of the second engine

22. T+30 min 38 s

    SECO-2

    Second cut-off of the second engine

23. T+33 min 41 s

    Payload Separation

    Final deployment of the payload from the rocket

24. T+40 min 41 s

    Payload Separation

    Final deployment of the payload from the rocket

25. T+47 min 41 s

    Payload Separation

    Final deployment of the payload from the rocket

Launch pad

Space Launch Complex 40

Cape Canaveral SFS, FL, USA (US)

Coordinates: 28.56194122, -80.57735736