The CHEOPS satellite in the Large European Acoustic Facility
In September 2018, the CHEOPS satellite underwent acoustic noise testing in the Large European Acoustic Facility (LEAF) at ESA's technical centre in the Netherlands. The satellite was placed in an elevated position and surrounded by microphones that monitored sound pressure levels during the test. The tests have shown that the satellite can withstand the high sound pressures of launch. These were followed by Electromagnetic Compatibility (EMC) testing, also performed at ESA's technical centre, to demonstrate that CHEOPS is compatible with its electromagnetic environment at launch and in orbit.