SpaceXFalcon 9 Block 5Space Launch Complex 4E, Vandenberg SFB, CA, USA
Falcon 9 Block 5 | USSF-259
Countdown
No countdown — this launch time is not yet known to the minute.September 16, 2026 · 01:00 UTCAdd to calendar
Go for Launch
Image: SpaceX
SpaceX's 730th launch · 111th this year · humanity's 7,392nd orbital launch attempt
Current T-0 confirmed by official or reliable sources.
Window: Sep 16, 01:00 – Sep 16, 05:00 UTC
Flight preview
Airspace & maritime notices
Closure posted
- Sector San Diego, Exclusive Economic Zone (EEZ)/Space Operations/Hazardous Warning Area/Commercial (Hazardous)
Matched by proximity to the pad · Source
USSF-259
USSF-259 is a classified mission for the United States Space Force.
Government/Top Secret · Polar Orbit (PO)
Booster
- B1097 · flight 13 · Autonomous Spaceport Drone Ship @ Of Course I Still Love You · last flew Falcon 9 Block 5 | Starlink Group 17-50 · zone record 224/232
Watch
- USSF-259 Mission — SpaceX
Flight timeline
- T−38MGO for Prop Load
- T−35MProp Load
- T−35MStage 1 LOX Load
- T−16MStage 2 LOX Load
- T−7MEngine Chill
- T−1MStartup
- T−1MTank Press
- T−45SGO for Launch
- T−3SIgnition
- T−0Liftoff
- T+1M7SMax-Q
- T+2M26SMECO
- T+2M30SStage 2 Separation
- T+2M36SSES-1
- T+2M57SFairing Separation
- T+6M3SEntry Burn Startup
- T+6M24SEntry Burn Shutdown
- T+7M58SStage 1 Landing Burn
- T+8M20SStage 1 Landing
Updates
Added launch.
Cosmic_Penguin · 9/9/2026 · source
Pad — Space Launch Complex 4E
Local pad time: Sep 15, 6:00 PM PDT
295 launches from this pad · 911 from Vandenberg SFB, CA, USA
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