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The STS-89 crew pose at Kennedy Space Centers (KSCs) Shuttle Landing Facility after flying in from NASAs Johnson Space Center to begin Terminal Countdown Demonstration Test (TCDT) activities. The TCDT is held at KSC prior to each Space Shuttle flight to provide crews with the opportunity to participate in simulated countdown activities. Endeavour is targeted for launch of STS-89 on Jan. 22 at 9:48 p.m. EST. From left to right are Mission Specialists Salizhan Sharipov, of the Russian Space Agency, Bonnie Dunbar, Ph.D., and James Reilly, Ph.D.; Commander Terrence Wilcutt; Mission Specialist Andrew Thomas, Ph.D.; Pilot Joe Edwards, Jr.; and Mission Specialist Michael Anderson. Mission STS-89 will be the first mission of 1998 and the eighth to dock with Russias Mir Space Station, where Thomas will succeed David Wolf, M.D., who has been on Mir since September 28. The STS-89 mission is scheduled to last nine days.