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During a visit to Kennedy, members of the STS-114 crew visit the MILA Spaceflight Tracking and Data Network Station. From left are Mission Specialist Andrew Thomas; Anthony Ippolito, current director of MILA/PDL; Commander Eileen Collins; and Gary Morse, incumbent MILA/PDL station director. MILA refers to Merritt Island Launch Area; PDL designates the Ponce De Leon Inlet site. The tracking station serves as the primary voice, data and telemetry communications link between the Shuttle and the ground from launch until 7-1/2 minutes into the flight. Millions of clues about the performance of the Space Shuttles main engines and other components are communicated to launch managers, technicians and engineers on the ground, who must keep their fingers on the pulse of the Space Shuttle during the critical ascent period. In a typical year, MILA provides through KSC more than 10,000 hours of data between spacecraft and data users. MILA is also used during a Space Shuttle landing at KSC and provides communications beginning about 13 minutes before touchdown. Also, MILA can be called upon to provide data transfer support for NASAs Expendable Launch Vehicle missions and orbiting scientific satellites.