PLATO and CHEOPS are two European Space Agency missions aimed at characterising exoplanets. CHEOPS is an S-class mission (small mission in ESA’s science program) which aims to characterise exoplanets already known to be orbiting around nearby bright stars. CHEOPS will target Earth- to Neptune-sized planets. PLATO is an M-class mission (medium size mission) aimed at finding terrestrial exoplanets in orbits out to the habitable zone (HZ) of solar-type stars …