Launch report · SpaceX
Falcon 9 Block 5 | USSF-259
Falcon 9 Block 5 by SpaceX from Space Launch Complex 4E, Vandenberg SFB, CA, USA, NET 2026-09-17 01:07 UTC. Outcome: launch successful. RocketScan did not analyze this launch before it flew - no call on record.
Open live in mission control →LAUNCH FACTS
- VEHICLE
- Falcon 9 Block 5
- PROVIDER
- SpaceX
- PAD
- Space Launch Complex 4E
- LOCATION
- Vandenberg SFB, CA, USA
- NET
- 2026-09-17 01:07 UTC
- WINDOW
- 2026-09-17 01:00 UTC → 05:00 UTC
- ORBIT
- Polar Orbit
- LL2 STATUS
- Launch Successful
MISSION
USSF-259 is a classified mission for the United States Space Force. It is possibly a batch of classified LEO satellites based on SpaceX’s Starshield satellite bus, based on locations of ascent rocket stage drop zones being fits with previous SDA Transport Layer launches.
OUTCOME + OUR CALL
Official outcome: Launch successful
RocketScan did not analyze this launch before it flew - no call on record.
Scoring rule: a launch that reached flight means the countdown proceeded, so a GO or HOLDING call is right and a SCRUB call is a false alarm. Only the last call made before T-0 counts.
CALL TIMELINE (0)
No verdicts were recorded for this launch. RocketScan only calls a countdown when someone opens it in mission control.
Launch data: Launch Library 2 · Calls: RocketScan (Grok over live X chatter) · Report URL: /launches/falcon-9-block-5-ussf-259