This is the fourth day of landing attempts for Endeavour. There are four landing opportunities available today, the first two opportinuties in Florida and the later two in California. The forecast for the Kennedy Space Center today calls for a slight chance of low clouds and fairly strong winds predicted to calm as the day progresses.
The first opportunity for Endeavour to return to Florida would see a deorbit burn at 12:32 p.m. Central Time with landing at 1:37 p.m. Central. The second opportunity of the day begins with a deorbit firing of Endeavour's engines at 2:09 p.m. with landing at 3:15 p.m. Central. If weather conditions require Endeavour to land at the alternate site in California, the first opportunity would begin with an engine firing at 3:41 p.m. Central leading to touchdown at 4:45 p.m. Central. The second California opportunity would begin with an engine firing at 5:18 p.m. Central leading to a touchdown at 6:22 p.m. Central.
A landing today will conclude a 185-day stay in space for the returning Expedition Five crew - Commander Valery Korzun, NASA ISS Science Officer Peggy Whitson and Flight Engineer Sergei Treschev - and a 14-day mission for the STS-113 crew of Commander Jim Wetherbee, Pilot Paul Lockhart, and Mission Specialists Mike Lopez-Alegria and John Herrington.