USSF-259
Liftoff Time (GMT)
01:00:00
Wednesday September 16, 2026
01:00
Window Open
05:00
Window Close
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Official Livestream
Watch on spacex.com
Mission Details
USSF-259
(TH-1)
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.
Operator: United States Space Force
Polar Orbit
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
General Trajectory
SE
SW
Launching
South
Stats
Falcon 9
689th
Mission
106th
Mission of 2026
SpaceX
720th
Mission
110th
Mission of 2026
2026
220th
Orbital launch attempt