USSF-366
Launch Success
Liftoff Time (GMT)
01:50:45
Sunday August 16, 2026
Watch Replay
NASASpaceflight.com
Mission Details
Read Article
Track Payloads
Launch Notes
Launched 38 minutes and 31 seconds after Globalstar 2-R Launch 1 from Florida, marking SpaceX's shortest period between two launches to date, and passing the previous record by 27 minutes.
USSF-366
(R-1, USA-620 to 642)
USSF-366 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 rocket stage drop zones being exact fits with previous Starlink Group 15 launches.
Operator: United States Space Force
Low Earth Orbit
23 Payloads
Rocket
Agency
SpaceXPrice
$74.00 million
Rocket
Diameter: 3.7m
Height: 70m
Payload to Orbit
LEO: 22,800 kg
GTO: 8,300 kg
Liftoff Thrust
7,607 Kilonewtons
Fairing
Diameter: 5.2m
Height: 13m
Stages
2
Of Course I Still Love You
Launch Site
E
S
Launching
Southeast
Stats
Falcon 9
679th
Mission
96th
Mission of 2026
SpaceX
709th
Mission
99th
Mission of 2026
2026
193rd
Orbital launch attempt