Sirius SXM-11

Slip history

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

1. Tue 30 Jun 2026, 03:07 UTCLL2 update

   Launch success.

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2. Mon 29 Jun 2026, 03:00 UTCLL2 update

   Spacecraft separation.

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3. Mon 29 Jun 2026, 02:25 UTCLL2 update

   Liftoff.

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4. Mon 29 Jun 2026, 02:11 UTCLL2 update

   Unofficial Re-stream by SPACE AFFAIRS has started

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5. Sun 28 Jun 2026, 07:52 UTCLL2 update

   Updated launch weather, 80% at start of window (90% at end).

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6. Mon 22 Jun 2026, 15:25 UTCLL2 update

   GO for launch.

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7. Mon 22 Jun 2026, 13:30 UTCLL2 update

   NET June 29 UTC, TBC.

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8. Thu 28 May 2026, 23:51 UTCLL2 update

   Added launch.

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Mission

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

SXM-11 is the 12th high-powered, digital, audio radio satellite built by Lanteris Space (ex-Maxar, Space System/Loral) for SiriusXM. The SXM-11 satellite will be based on the proven IM-1300 (ex-LS-1300)-class platform and built at the company’s manufacturing facility in Palo Alto, California. SXM-11 has a large, mesh, unfurlable reflector almost 10 meters in diameter that allows SiriusXM programming to reach its radios, including those in moving vehicles.

Mission type

Communications

Orbit

Geostationary Transfer Orbit

Rocket file imagery

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

   Tank Press

   Fuel tanks are pressurized to flight levels

7. T-1 min

   Startup

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

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 16 s

    Max-Q

    Maximum dynamic pressure

12. T+2 min 28 s

    MECO

    Cut-off of the main engine

13. T+2 min 32 s

    Stage 2 Separation

    Separation of the second stage from the first

14. T+2 min 39 s

    SES-1

    First start of the second engine

15. T+3 min 27 s

    Fairing Separation

    Separation of the payload fairing

16. T+6 min 17 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 4 s

    SECO-1

    First cut-off of the second engine

19. T+8 min 9 s

    Stage 1 Landing Burn

    Start of the first stage landing burn

20. T+8 min 34 s

    Stage 1 Landing

    Landing of the first stage

21. T+25 min 57 s

    SES-2

    Second start of the second engine

22. T+26 min 44 s

    SECO-2

    Second cut-off of the second engine

23. T+34 min 35 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