One of the audible alarm sounds used in the Main Control Room and in mission-specific Dedicated Control Rooms, at ESOC, ESA's space operations centre, Darmstadt, Germany.
In a spacecraft's mission control system, this sound can be assigned to any out-of-range event or specific occurrence, to alert the on-duty engineer or spacecraft controller. For example, if an on-board temperature exceeds a certain limit, this alarm can be sounded.
Some missions use slightly different sounds to avoid confusion.
This sound is used by Mars Express.
Credit: ESA CC BY-SA IGO 3.0
