As the spacecraft approached the first planet from the Sun, it activated the Italian Spring Accelerometer (ISA). This device recorded the actual vibrations of BepiColombo, which were caused by fuel movement, solar panel vibrations, and the operation of the cooling system during its flyby of the planet.
ESA specialists shifted the accelerometer data in frequency to make it audible to the human ear. One hour of measurements was accelerated into one minute of sound.
The audio recording was complemented by a video sequence featuring precise modeling of the spacecraft's trajectory and position, along with photographs taken by one of BepiColombo's cameras.