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CAPE CANAVERAL, Fla. - STS-126 Mission Specialist Heidemarie Stefanyshyn-Piper arrives at the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida aboard a T-38 jet for Terminal Countdown Demonstration Test, or TCDT, activities. During TCDT, Endeavour's astronauts and launch teams will participate in a simulated countdown, practice emergency exit procedures at the launch pad and continue to familiarize themselves with the mission payload and hardware. On this 27th mission to the International Space Station, Endeavour will carry the Lightweight Multi-Purpose Experiment Support Structure Carrier and the Multi-Purpose Logistics Module Leonardo that will hold supplies and equipment, including additional crew quarters, additional exercise equipment, spare hardware and equipment for the regenerative life support system. Endeavour is targeted to launch at 7:55 p.m. EST on Nov. 14. Photo credit: NASA/Kim Shiflett