Mission Control and Data Systems In FY 1996, five new spacecraft were launched, bringing NASA Mission Control and Data Systems' operational fleet to 15 spacecraft. Mission Control and Data Systems continued to provide the control and performance analysis of NASA's robotic Earth-orbiting spacecraft, the capture of the spacecraft data received on the ground, and the preparation of the data for scientific analysis. In FY 1996, Mission Control and Data Systems provided 45,000 hours of mission control services to the 15 on-orbit spacecraft and processed 15.5 trillion bits of received spacecraft data.