When the SIR-B antenna failed to unfold correctly, Ride used the robot arm to shake it loose, manipulating the robot arm much faster than she had been trained. She also repaired a broken antenna on the middeck. During the second day of the mission, the SIR-B antenna had to be stowed so Challenger ' s orbit could be altered but its latches failed to clamp and close the antenna. Ride then used the RMS to nudge the antenna panel closed. Sullivan performed an EVA with fellow TFNG mission specialist David Leestma, in which they showed that a satellite could be refueled in orbit. On this mission Challenger completed 132 orbits of the Earth in 197.5 hours, landing back at the KSC on October 13, 1984. During the mission, Ride carried a white silk scarf that had been worn by Amelia Earhart. On her two flights Ride had spent over 343 hours in space.