Soundscape: Paranal Auxiliary Telescopes (ATs) dome moving

Thanks to a track system, the Auxiliary Telescopes (ATs) can move to more than 10 different observing locations over the Very Large Telescope platform. This audio registers one of the AT moving during the day to get it ready for a night of observations with the VLT Interferometer (VLTI) which is a coherent combination of the four VLT Unit Telescopes or the four moveable 1.8m Auxiliary Telescopes, acting as a if it was a single telescope as large as the group of telescopes combined, changing the positions of the ATs means that the VLTI can be adjusted according to the needs of the observing project.