The ability of remotely controlled robots to operate in space has been manifested through the Robotic Refueling Mission (RRM) experiment conducted by NASA on board the ISS. Dextre, the Canadian Space Agency's (CSA) robot, recently achieved the satellite-servicing tasks.
Prior to launching a satellite, its fuel tank will be fitted through a valve. The valve will then be sealed permanently. However, the RRM experiment ensures that the satellites’ batteries can be removed and refueled in space using remote-controlled robot. With Dextre, the RRM tools were retrieved and scrutinized by unlatching the tool adapters’ safety launch locks. The fragile, satellite lock wire was released with the help of a RRM tool.
Dextre, measuring 12-ft achieved the most complex, three-day RRM Gas Fittings Removal task. With RRM Wire Cutter Tool (WCT), two separate lock wires measuring 0.5 mm were incised, and then the WCT was directed by Dextre to fasten its hook beneath the wires and perform cutting with only a few millimeters of clearance. This mandatory procure is performed prior to removing and servicing various satellite parts for in-orbit missions of future.
Following the gas fittings removal task, RRM operations will resume during May 2012. The RRM Refueling task will take place during this summer. The results will be presented by NASA and CSA at the Second International Workshop on on-Orbit Servicing, to be conducted by Goddard between May 30 and 31, 2012.
Source: http://www.nasa.gov/