KSC-06pd1773

KENNEDY SPACE CENTER, FLA. - The STS-115 crew is in the White Room on the orbiter access arm on Launch Pad 39B to get instruction on using the emergency egress system. From left are Pilot Chris Ferguson, Commander Brent Jett, and Mission Specialists Heidemarie Stefanyshyn-Piper, Joseph Tanner, Steven MacLean and Daniel Burbank. MacLean is with the Canadian Space Agency. The White Room provides access into the orbiter through the crew access hatch. The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27. During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays. Photo credit: NASA/Cory Huston