File:KSC-08-S-00015

English: The STS-123 astronauts practiced launch day procedures during the TCDT. Endeavour's seven astronauts and ground teams participated in what's called the terminal countdown demonstration test, or TCDT. The TCDT enables astronauts and ground crews to participate in various countdown activities, including equipment familiarization and emergency egress training. On the STS-123 mission, Endeavour and its crew will deliver the first section of the Japan Aerospace Exploration Agency's Kibo laboratory and the Canadian Space Agency's two-armed robotic system, Dextre TCDT wrapped up February 25 with a full practice countdown that featured everything but fueling the shuttle and an actual launch. The crew members then returned to NASA’s Johnson Space Center in Houstonto ready themselves for the 25th mission to the International Space Station. Space shuttle Endeavour is targeted to launch March 11 at 2:28 a.m. Eastern time. I'm Greg Gaddis and that's your Space Shuttle Minute.