GTD has commissioned the new configuration process of the launchers’ tracking (radar and telemetry) systems for operational use. Unlike Ariane 5, Soyuz uses GPS/GLONNAS data to get positioned. Since the GPS/GLONNAS constellation is at a low orbit, data are only available during the phase in which Soyuz is below the constellation. GTD adapted the tracking system in order to receive these data only during the GPS visibility phase and then use data from the inertial equipment unit. During the operational configuration of the Vega location system, they considered the possibility that the Vega rocket would sharply rotate 180 degrees in the initial phase of the flight without breaking up. This would result in a potential return of the launcher to the launch pad area. GTD added a control to the security system to detect this possibility in real time and inform the security officer with a maximum delay of 250 ms. In this way, it would be possible to destroy the Vega rocket before completing the turn.
