The telemetry, Abstract: The satellite tracking, telemetry, and command system, or TT&C, is utilized to transmit the telemetry and telecommand data, as well as to determine the satellite TELECOMMUNICATION SATELLITE TELEMETRY TRACKING AND COMMAND SUB-SYSTEM Rodolphe Nasta Engineering Division ALCATEL ESPACE Toulouse, France Overview. The satellite command and control (C2) links used for telemetry, tracking, and commanding functions (TT&C) are a critical part of the satellite mission. The teleme