USSF-23

USSF-23 carries two US Space Force on-orbit logistics pathfinders to near-geosynchronous orbit. The refueling demonstration pairs AFRL's Tetra-5 client satellites, which fly on Redwire's Mako microsatellite bus, with Astroscale U.S.'s Provisioner (APS-R) servicer and a commercial fuel depot supplied by Orbit Fab under a Defense Innovation Unit contract. Provisioner is to draw propellant from the depot and conduct the first on-orbit hydrazine refueling of a Space Force satellite at GEO.

Starfish Space's US-Otter 1 tug flies the augmented-maneuver demonstration, docking with an unprepared, non-operational client vehicle to test adding propulsion and mobility to satellites that were never designed for servicing.