[5] The primary objective of the concept mission and spacecraft was the complex refueling of Landsat 7, a satellite launched in 1999, that was not designed for on-orbit servicing.
This would have involved grasping the satellite with a mechanical arm, gaining access to the satellite's fuel tank by cutting through insulation and wires and unscrewing a bolt, and then attaching a hose to pump in hydrazine fuel.
Using robots to build and assemble new structural components from scratch would be an important step towards a type of space-based construction that had been impossible to date.
[1] The OSAM-1 spacecraft was to include: In 2016, NASA's Restore-L satellite was intended to refuel Landsat 7.
[8] On 1 March 2024, NASA announced that OSAM-1 had been cancelled due to "continued technical, cost, and schedule challenges, and a broader community evolution away from refueling unprepared spacecraft.