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measurement units; monitors radio navigation and digital autopilot hardware systems.
Ground Controller (GC)
Coordinates operation of ground stations and other elements of worldwide space tracking and data network; responsible for MCC computer support and displays.
Maintenance, Mechanical, Arm & Crew Systems (MMACS)
Formerly known as RMU; responsible for remote manipulator system; monitors auxilliary power units and hydraulic systems; Manages payload bay and vent door operations.
Flight Surgeon (SURGEON)
Monitors health of flight crew; provides procedures and guidance on all health-related matters.
Public Affairs Offfiicer (PAO)
Provides real-time explanation of mission events during all phases of flight.
