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USSF-106

Vulcan VC4S, United Launch Alliance

Space Launch Complex 41, Cape Canaveral SFS, FL, USA

Launch time

T-0

Wed 13 Aug, 02:56 CEST

00:56 UTC

The rocket put its payload into the planned orbit.

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How sure is this date?

The source gives minute precision. Launch plans can change.

Launch probability 80%

Weather concerns: Cumulus Cloud Rule

Launch record updated by LL2

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Mission

USSF-106 on Vulcan VC4S. Wed 13 Aug 2025, 00:56 UTC. Reported outcome: Success. Launch site: Space Launch Complex 41. Source: Launch Library 2.

USSF-106 is a mission for the United States Space Force. The launch will deploy various payloads directly into geosynchronous orbit, including the NTS-3 (Navigation Technology Satellite 3), a demonstration navigation satellite testing a new digital signal generator that can be reprogrammed on-orbit to broadcast new signals, improve performance by avoiding and defeating interference, and adding signatures for detecting spoofing attacks.

Mission type
Government/Top Secret
Orbit
Geosynchronous Orbit

Launch-site file imagery

A Vulcan rocket lifts off between the lightning towers of Space Launch Complex 41 in a night launch.

File imagery: Peregrine Mission One, 8 January 2024. Space Launch Complex 41 during a Vulcan launch.

Credit: NASA/Kim Shiflett · Public domain (NASA) · Source

Mission patches

  • US Space Force Patch

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

Launch timeline

Times are relative to liftoff.

  1. T-4.9 s

    Ignition

    Start of the engine ignition sequence

  2. T+1.1 s

    Liftoff

    First upwards movement of the rocket

  3. T+46.1 s

    Supersonic

    Vehicle is supersonic

  4. T+1 min 0.1 s

    Max-Q

    Maximum dynamic pressure

  5. T+1 min 36.2 s

    SRB Separation

    The solid rocket boosters are separated from the launcher.

  6. T+4 min 57.6 s

    MECO

    Cut-off of the main engine

  7. T+5 min 3.7 s

    Stage 2 Separation

    Separation of the second stage from the first

  8. T+5 min 13.6 s

    SES-1

    First start of the second engine

  9. T+5 min 21.7 s

    Fairing Separation

    Separation of the payload fairing

Slip history

Changes recorded by Space Right Now

No changes since we started tracking on .

    Source updates from Launch Library 2 (20)

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

    1. LL2 update

      Launch success.

      Read the source update
    2. LL2 update

      Liftoff.

      Read the source update
    3. LL2 update

      New T-0.

      Read the source update
    4. LL2 update

      Updated launch weather, 80% GO.

      Read the source update
    5. LL2 update

      Refined launch window.

      Read the source update
    6. LL2 update

      Updated launch weather, 75% GO.

      Read the source update
    7. LL2 update

      Targeting August 12.

      Read the source update
    8. LL2 update

      Delayed to NET August 11 UTC.

      Read the source update
    9. LL2 update

      NET August 9 UTC, to be confirmed.

      Read the source update
    10. LL2 update

      NET August.

      Read the source update
    11. LL2 update

      NET July.

      Read the source update
    12. LL2 update

      NET Q2 2025.

      Read the source update
    13. LL2 update

      NET early 2025.

      Read the source update
    14. LL2 update

      NET Q4 2024.

      Read the source update
    15. LL2 update

      NET late 2024.

      Read the source update
    16. LL2 update

      Reportedly targeting October

      Read the source update
    17. LL2 update

      NET late 2024.

      Read the source update
    18. LL2 update

      NET summer 2024, pending Vulcan Cert-2 status.

      Read the source update
    19. LL2 update

      Mid to late 2023

      Read the source update
    20. LL2 update

      Pushing to Q2 FY23

      Read the source update

    Launch pad

    Space Launch Complex 41

    Cape Canaveral SFS, FL, USA (US)

    Coordinates: 28.58341025, -80.58303644

    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.