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Recorded mission

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SpaceX

Falcon 9 Block 5 | NROL-146

Launch Successful
Falcon 9 Block 5 | NROL-146

Recorded mission coverage

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NROL-146 MissionOpen source

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Mission brief

The flight at a glance.

First 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.

Open the full mission →
SpaceX Launch Library Flight Club

Published flight sequence

Know what comes next.

Planned timings relative to the target. These steps do not indicate live progress.

  1. T−00:38:00

    GO for Prop Load

  2. T−00:35:00

    Prop Load

  3. T−00:35:00

    Stage 1 LOX Load

  4. T−00:16:00

    Stage 2 LOX Load

  5. T−00:07:00

    Engine Chill

  6. T−00:01:00

    Tank Press

See all 19 published steps ↓
  1. T−00:01:00

    Startup

  2. T−00:00:45

    GO for Launch

  3. T−00:00:03

    Ignition

  4. T+00:00:00

    Liftoff

  5. T+00:01:08

    Max-Q

  6. T+00:02:27

    MECO

  7. T+00:02:30

    Stage 2 Separation

  8. T+00:02:37

    SES-1

  9. T+00:03:02

    Fairing Separation

  10. T+00:06:06

    Entry Burn Startup

  11. T+00:06:27

    Entry Burn Shutdown

  12. T+00:07:51

    Stage 1 Landing Burn

  13. T+00:08:13

    Stage 1 Landing