USSF-259
Launch Success
Liftoff Time (GMT)
01:07:56
Thursday September 17, 2026
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Mission Details
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USSF-259
(TH-1, USA-668 to 684)
USSF-259 is a classified mission for the United States Space Force. It is possibly a batch of classified LEO satellites for the USSF's Space-Based Airborne Moving Target Indicator (SB-AMTI) program based on SpaceX’s Starshield satellite bus, based on locations of ascent rocket stage drop zones being fits with previous SDA Transport Layer launches.
Operator: United States Space Force
Polar Orbit
17 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
SE
SW
Launching
South
Stats
Falcon 9
689th
Mission
106th
Mission of 2026
SpaceX
720th
Mission
110th
Mission of 2026
2026
222nd
Orbital launch attempt