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Vulcan VC4S | USSF-106
Vulcan VC4S | USSF-106 launched on Wed, Aug 13, 2025, 12:56 AM UTC — a United Launch Alliance mission.
Launch SuccessfulUnited Launch Alliance
Lifted offNET Aug 2025
NET Wed, Aug 13, 2025, 12:56 AM UTC
Live coverage
Watch the webcasts
3 streams available — switch between the provider’s feed, X and others.
Mission profile
The flight at a glance
Vulcan VC4SVehicle
United Launch AllianceProvider
Space Launch Complex 41Pad
Cape Canaveral SFS, FL, USALocation
Government/Top SecretMission type
Geosynchronous OrbitOrbit
Flight sequence
Mission timeline
Key events from liftoff — ignition, staging, separation and deployment — with their times relative to T0.
- IgnitionT- 00:00:05
- LiftoffT+ 00:00:01
- SupersonicT+ 00:00:46
- Max-QT+ 00:01:00
- SRB SeparationT+ 00:01:36
- MECOT+ 00:04:58
- Stage 2 SeparationT+ 00:05:04
- SES-1T+ 00:05:14
- Fairing SeparationT+ 00:05:22
Flight simulation
Ascent to orbit
A representative gravity-turn climb for Vulcan VC4S to Geosynchronous Orbit. Illustrative model — not this mission’s live telemetry.
Mission timeT+0:00
Altitude0.0 km
Velocity0.00 km/s
PhaseLiftoff
T+0:00 / 18:00
SimulatedRepresentative Vulcan VC4S ascent profile — illustrative model, not this mission’s live telemetry.
The mission
USSF-106
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.
Around this launch
Related news
No news linked to this launch yet
As coverage publishes, deduplicated articles about this mission will appear here.
Good to know
Frequently asked
What time does Vulcan VC4S | USSF-106 launch?
Vulcan VC4S | USSF-106 is scheduled to lift off Wed, Aug 13, 2025, 12:56 AM UTC.
Where can I watch Vulcan VC4S | USSF-106?
Watch the official live webcast embedded on this page — it goes live shortly before liftoff.
Who is launching Vulcan VC4S | USSF-106?
Vulcan VC4S | USSF-106 is an United Launch Alliance mission flying on a Vulcan VC4S.
Where does Vulcan VC4S | USSF-106 launch from?
It lifts off from Space Launch Complex 41, Cape Canaveral SFS, FL, USA.