performance reducing pressure on the shutting as its goes transsonic for the final time. engines revving up standing by for the throttle call. >> atlantis, go at throttle up, no action dp, dt. >> throttle up, no action on dp, dt. >> tha call from barry willmore, instrumentation only, no action required. >> atlantis now 15 miles in altitude, already 16 miles down range from the kennedy space center 1:40 into the flight. atlantis flexing its muscles one final time.