Sandra Magnus arrives at the Shuttle Landing Facility aboard a jet for Terminal Countdown Demonstration Test or TCDT activities.

STS-126 Mission Specialist Sandra Magnus 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. Magnus will remain on the International Space Station as a flight engineer and science officer for Expedition 18. 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