ESA Science & Technology - CHEOPS in front of the LEAF acoustic chamber at ESTEC

The CHEOPS spacecraft on its ground support trolley, shortly before being placed in the Large European Acoustic Facility (LEAF) test chamber at ESA's European Space Research and Technology Centre (ESTEC) in Noordwijk, the Netherlands, on 5 November 2015.

CHEOPS – composed of the spacecraft platform Structural Qualification Model (SQM) and the Instrument Structural and Thermal Model (STM) – was at ESTEC for acoustic tests that were performed on 6 November 2015.

The white circular holes in the wall of the acoustic test facility, seen in the background on the left, are the ends of large sound horns that are used to produce noise for the acoustic tests.