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KENNEDY SPACE CENTER, Fla. -- The STS-104 crew walks out of the Operations and Checkout Building, on their way to Launch Pad 39B and a simulated countdown exercise. From back to front are Mission Specialists Michael L. Gernhardt (left) and James F. Reilly (right); middle, Mission Specialist Janet Lynn Kavandi; front, Commander Steven W. Lindsey (left) and Pilot Charles O. Hobaugh (right). The crew is taking part in Terminal Countdown Demonstration Test activities, which include emergency exit training from the orbiter, opportunities to inspect their mission payloads in the orbiter’s payload bay and simulated countdown exercises. The launch of Atlantis on mission STS-104 is scheduled July 12 from Launch Pad 39B. The mission is the 10th flight to the International Space Station and carries the Joint Airlock Module