The STS-135 astronauts are beginning to climb aboard space shuttle Atlantis in preparation for a liftoff at 11:26 a.m. EDT. The boarding process should take a little more than an hour and the hatch will be closed for flight at about 9:21 a.m.
Launch Director Mike Leinbach completed a weather briefing with Shuttle Weather Officer Kathy Winters, Ascent Flight Director Richard Jones and the Spaceflight Meteorology group in Mission Control in Houston. While weather remains dynamic, Leinbach told the launch team, “We do have a shot at this today.”
Teams are not working any issues that would delay the launch of Atlantis on mission STS-135, the final flight of the Space Shuttle Program.