Falcon 9 Block 5 | USSF-366
The Government/Top Secret flight Falcon 9 Block 5 | USSF-366 departed Vandenberg SFB, CA, USA atop a Falcon 9, bound for LEO.
- Launch time
- Status
- SUCCESS
- Operator
- SpaceX
- Mission type
- Government/Top Secret
- Rocket
- Falcon 9
- Launch site
- Vandenberg SFB, CA, USA
- Launch pad
- Space Launch Complex 4E
- Payload
- —
- Target orbit
- LEO

Mission timeline
- 2026-08-16T01:50:45.000ZFalcon 9 roars off the pad at Vandenberg SFB, CA, USA.
- The vehicle reaches Max Q, the highest aerodynamic load of the flight.
- MECO — first-stage propulsion ends after a nominal burn.
- Clean stage separation confirmed.
- The upper-stage engine lights up after separation.
- Orbit insertion confirmed — now circling in LEO.
- All mission objectives achieved.