Acaba and Antonelli during remote manipulator system (RMS) OPS at AFT Flight Deck (FD)

S119-E-006578 (18 March 2009) --- Astronauts Tony Antonelli (right), STS-119 pilot, and Joseph Acaba, mission specialist, look over a procedures checklist on the aft flight deck of Space Shuttle Discovery while docked with the International Space Station.