[radar101]

http://countdown.ksc.nasa.gov/shuttle/countdown/cdt/

[KevinDavis]

Discovery's seven astronauts are getting their launch day wakeup call over in crew quarters at the Operations and Checkout Building. Their sleep/wake cycle is timed to match the mission hours of STS-116.

Coming up in about 90 minutes, the crew will undergo final pre-flight medical exams.

You'll see the astronauts for the first time today at about 3 p.m. during the traditional photo opportunity in the crew quarters' dining room.

A weather briefing and then suitup follows for the crewmates. Departure for the launch pad is expected just before 5 p.m.