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IMAP & others

Falcon 9 Block 5, SpaceX

Launch Complex 39A, Kennedy Space Center, FL, USA

Launch time

T-0

Wed 24 Sept, 13:30:50 CEST

11:30:50 UTC

The rocket put its payload into the planned orbit.

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How sure is this date?

The source gives second precision. Launch plans can change.

Launch probability 90%

Weather concerns: Cumulus Cloud Rule

Launch record updated by LL2

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Mission

IMAP & others on Falcon 9 Block 5. Wed 24 Sept 2025, 11:30:50 UTC. Reported outcome: Success. Launch site: Launch Complex 39A. Source: Launch Library 2.

IMAP (Interstellar Mapping and Acceleration Probe) is a NASA mission to study interactions between solar wind and the local interstellar medium. Carrying a suite of 10 scientific instruments, IMAP is able to investigate how particles are accelerated, determine their composition, as well as help to advance space weather forecasting models. The IMAP launch also includes the space weather satellite SWFO-L1 (Space Weather Follow-On - L1) for NOAA and the GLIDE (Global Lyman-alpha Imagers of the Dynamic Exosphere/Carruthers Geocorona Observatory) mission to study far ultraviolet emission in the Earth's exosphere.

Mission type
Heliophysics
Orbit
Heliocentric L1

Rocket file imagery

A Falcon 9 rises above its launch tower through white exhaust clouds under a pale blue sky.

File imagery: Crew-9, 28 September 2024. Falcon 9 lifting off from Space Launch Complex 40.

Credit: NASA/Keegan Barber · Public domain (NASA) · Source

Mission patches

  • IMAP

Patch artwork is not shown because its image licence is unconfirmed.

Launch timeline

Times are relative to liftoff.

  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

    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 12 s

    Max-Q

    Maximum dynamic pressure

  12. T+2 min 29 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 40 s

    SES-1

    First start of the second engine

  15. T+3 min 12 s

    Fairing Separation

    Separation of the payload fairing

  16. T+6 min 37 s

    Entry Burn Startup

    Start of the atmospheric entry burn

  17. T+7 min 7 s

    Entry Burn Shutdown

    End of the atmospheric entry burn

  18. T+7 min 52 s

    SECO-1

    First cut-off of the second engine

  19. T+8 min 20 s

    Stage 1 Landing Burn

    Start of the first stage landing burn

  20. T+8 min 45 s

    Stage 1 Landing

    Landing of the first stage

  21. T+1 h 12 min 28 s

    SES-2

    Second start of the second engine

  22. T+1 h 13 min 30 s

    SECO-2

    Second cut-off of the second engine

  23. T+1 h 23 min 51 s

    Payload Separation

    Final deployment of the payload from the rocket

  24. T+1 h 30 min 26 s

    Payload Separation

    Final deployment of the payload from the rocket

  25. T+1 h 36 min 46 s

    Payload Separation

    Final deployment of the payload from the rocket

Slip history

Changes recorded by Space Right Now

No changes since we started tracking on .

    Source updates from Launch Library 2 (28)

    Announcements supplied by LL2 may predate our tracking. They are separate from changes observed by Space Right Now.

    1. LL2 update

      Launch success with acquisition of signal from all 3 spacecraft.

      Read the source update
    2. LL2 update

      Liftoff.

      Read the source update
    3. LL2 update

      Official Webcast by NASA has started

      Read the source update
    4. LL2 update

      Now targeting Sep 24 at 11:30:50 UTC

      Read the source update
    5. LL2 update

      Weather is 90% favorable for launch.

      Read the source update
    6. LL2 update

      Delayed to September 24.

      Read the source update
    7. LL2 update

      Weather is 75% favorable for launch.

      Read the source update
    8. LL2 update

      Weather is 80% favorable for launch.

      Read the source update
    9. LL2 update

      Tweaked T-0.

      Read the source update
    10. LL2 update

      Setting GO.

      Read the source update
    11. LL2 update

      Updated T-0.

      Read the source update
    12. LL2 update

      Added launch time.

      Read the source update
    13. LL2 update

      NET September 23.

      Read the source update
    14. LL2 update

      Launch pad change.

      Read the source update
    15. LL2 update

      Changed launch pad.

      Read the source update
    16. LL2 update

      Reverted back to NET September.

      Read the source update
    17. LL2 update

      NET Q4.

      Read the source update
    18. LL2 update

      Changed launch pad.

      Read the source update
    19. LL2 update

      NET September.

      Read the source update
    20. LL2 update

      NET December.

      Read the source update
    21. LL2 update

      NET September 2025

      Read the source update
    22. LL2 update

      NET late 2025.

      Read the source update
    23. LL2 update

      NET Q2 2025.

      Read the source update
    24. LL2 update

      Reverting to NET 2025.

      Read the source update
    25. LL2 update

      NET 29 April 2025.

      Read the source update
    26. LL2 update

      NET May 2025.

      Read the source update
    27. LL2 update

      NET February 2025.

      Read the source update
    28. LL2 update

      NET December 2025

      Read the source update

    Launch pad

    Launch Complex 39A

    Kennedy Space Center, FL, USA (US)

    Coordinates: 28.60822681, -80.60428186

    View launch pad on a map
    Launch data: The Space Devs (Launch Library 2)

    Launch plans change. Times are estimates from the source, not a guarantee of liftoff.