S123-E-008452 (23 March 2008) --- The Canadarm2, or Space Station Remote Manipulation System (SSRMS) robot arm, completes the handoff of the Orbiter Boom Sensor System for stowage on the International Space Station's S1 truss. There is no room on the next shuttle flight to launch with the sensor system onboard, so for the first time, it is being stowed on the orbital outpost prior to the undocking of the ISS and Space Shuttle Endeavour.