Monday, November 23, 2009

final spacewalk

Astronauts Randy Bresnik and Robert Satcher Jr. completed all their tasks during the third and final spacewalk scheduled during Atlantis’ mission to the International Space Station. It ended at 2:06 p.m. EST, lasting five hours and 42 minutes.

Inside the station astronauts Leland Melvin and Barry Wilmore operated the station’s Canadarm2, which played a major role in the spacewalk’s first and most lengthy task -- the installation of a 6.2-foot-long, 1,240-pound high-pressure oxygen tank. The arm lifted the tank from Express Logistics Carrier 2 (ELC2) and took it to the airlock, where it was attached.

While Satcher worked on early steps of the tank move, Bresnik got a materials experiment from Atlantis’ cargo bay and installed it on ELC2. The two also removed some debris shields from outside the airlock and strapped them to an external stowage platform.