(05/15/1997) --- STS-84 Commander Charles J. Precourt adjusts the helmet of his launch and entry suit during final prelaunch preparations in the Operations and Checkout Building. This is Precourt’s third space flight, but his first as commander. Precourt and six other crew members will depart shortly for Launch Pad 39A, where the Space Shuttle Atlantis awaits liftoff during an approximate 7-minute launch window which opens at about 4:08 a.m. This will be the sixth docking of the Space Shuttle with the Russian Space Station Mir. The exact liftoff time will be determined about 90 minutes prior to launch, based on the most current location of Mir