CHEOPS electromagnetic compatibility testing at ESA's MAXWELL facility in ESTEC.

The CHEOPS (CHaracterising ExOPlanet) spacecraft in the MAXWELL electromagnetic test chamber at ESA's European Space Research and Technology Centre (ESTEC) in Noordwijk, the Netherlands, on 7 September, 2018. The CHEOPS spacecraft is currently undergoing a series of electromagnetic compatibility testing. It is essential to ensure that the electrical and electronic equipment within a spacecraft function correctly. When switching on an experiment for example, if other payload systems, such as the telemetry or other telecommunications links, were disturbed or even disrupted, there could be serious consequences. CHEOPS will be the first mission dedicated to searching for exoplanetary transits by performing ultrahigh precision photometry on bright stars already known to host planets.