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KENNEDY SPACE CENTER, FLA. -- In the crew quarters at the Operations and Checkout Building, the Mission STS-117 crew members enjoy breakfast before resuming Terminal Countdown Demonstration Test activities. From left are Mission Specialists Danny Olivas and Steven Swanson, Pilot Lee Archambault, Commander Rick Sturckow and Mission Specialists Patrick Forrester and James Reilly. The TCDT also includes M-113 armored personnel carrier training, pad emergency egress training and a simulated launch countdown. The mission payload aboard Space Shuttle Atlantis is the S3/S4 integrated truss structure, along with a third set of solar arrays and batteries. The crew of six astronauts will install the truss to continue assembly of the International Space Station. Photo credit: NASA/Kim Shiflett.