NROL-179

Slip history

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

1. Fri 19 Jun 2026, 11:24 UTCLL2 update

   Launch success.

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2. Fri 19 Jun 2026, 08:51 UTCLL2 update

   Liftoff.

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3. Fri 19 Jun 2026, 08:35 UTCLL2 update

   Unofficial Re-stream by SPACE AFFAIRS has started

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4. Fri 19 Jun 2026, 05:47 UTCLL2 update

   Now targeting Jun 19 at 08:50:45 UTC

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5. Fri 19 Jun 2026, 05:08 UTCLL2 update

   Now targeting Jun 19 at 08:50 UTC

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6. Wed 17 Jun 2026, 16:27 UTCLL2 update

   Now targeting Jun 19 at 08:40 UTC

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7. Tue 9 Jun 2026, 17:01 UTCLL2 update

   GO for launch on June 18.

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8. Tue 9 Jun 2026, 12:40 UTCLL2 update

   Added launch.

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Mission

NROL-179 on Falcon 9 Block 5 from Space Launch Complex 4E. Launch time, status and recorded date changes from Launch Library 2.

Fourteenth batch of satellites for a reconnaissance satellite constellation built by SpaceX and Northrop Grumman for the National Reconnaissance Office to provide imaging and other reconnaissance capabilities.

Mission type

Government/Top Secret

Orbit

Low Earth Orbit

Rocket file imagery

Launch timeline

Times are relative to liftoff.

1. T-38 minFri 19 Jun, 10:12 CEST

   GO for Prop Load

   Launch director verifies go for propellant load

2. T-35 minFri 19 Jun, 10:15 CEST

   Stage 1 LOX Load

   Start of liquid oxygen loading in the first stage

3. T-35 minFri 19 Jun, 10:15 CEST

   Prop Load

   Start of propelland loading

4. T-16 minFri 19 Jun, 10:34 CEST

   Stage 2 LOX Load

   Start of liquid oxygen loading in the second stage

5. T-7 minFri 19 Jun, 10:43 CEST

   Engine Chill

   Start of engine chilling

6. T-1 minFri 19 Jun, 10:49 CEST

   Tank Press

   Fuel tanks are pressurized to flight levels

7. T-1 minFri 19 Jun, 10:49 CEST

   Startup

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

8. T-45 sFri 19 Jun, 10:50 CEST

   GO for Launch

   Launch director verifies go for launch

9. T-3 sFri 19 Jun, 10:50 CEST

   Ignition

   Start of the engine ignition sequence

10. T-0Fri 19 Jun, 10:50 CEST

    Liftoff

    First upwards movement of the rocket

11. T+1 min 2 sFri 19 Jun, 10:51 CEST

    Max-Q

    Maximum dynamic pressure

12. T+2 min 10 sFri 19 Jun, 10:52 CEST

    MECO

    Cut-off of the main engine

13. T+2 min 14 sFri 19 Jun, 10:52 CEST

    Stage 2 Separation

    Separation of the second stage from the first

14. T+2 min 22 sFri 19 Jun, 10:53 CEST

    SES-1

    First start of the second engine

15. T+2 min 56 sFri 19 Jun, 10:53 CEST

    Fairing Separation

    Separation of the payload fairing

16. T+3 min 21 sFri 19 Jun, 10:54 CEST

    Booster Boostback Burn Shutdown

    End of the booster boostback burn

17. T+6 min 1 sFri 19 Jun, 10:56 CEST

    Entry Burn Startup

    Start of the atmospheric entry burn

18. T+6 min 18 sFri 19 Jun, 10:57 CEST

    Entry Burn Shutdown

    End of the atmospheric entry burn

19. T+7 min 18 sFri 19 Jun, 10:58 CEST

    Stage 1 Landing Burn

    Start of the first stage landing burn

20. T+7 min 43 sFri 19 Jun, 10:58 CEST

    Stage 1 Landing

    Landing of the first stage

Launch pad

Space Launch Complex 4E

Vandenberg SFB, CA, USA (US)

Coordinates: 34.632, -120.611