With a spare S-band antenna structural assembly (SASA) in his hands, Robert L. Satcher, Jr. rode the station's robotic arm from Atlantis' payload bay to the station's Earth-facing Z1 truss segment. There, he and Mike Foreman connected two cables and bolted the SASA in place. The spacewalkers are about an hour and 20 minutes ahead of schedule and will split up to tackle a variety of maintenance tasks. The spacewalk started at 9:24 a.m. EST and is expected to last 6.5 hours.
