Discovery ready ro roll to launch pad
So far all the margins have been used up in the time line for launch and if they make the May 15th launch date evrything from here on would have to accomplished without problems resulting in delays. June 3rd is the cutoff for the launch window.
Mission Status
Discovery will begin rolling out of the Vehicle Assembly Building at 12 noon EDT (1600 GMT) on Wednesday, NASA has just decided. This timing is based on completion of work in the VAB.