Detrended CHEOPS photometry of 55 Cnc e. Upper: the Data Reduction Pipeline (DRP) aperture photometry fluxes in black, and in red the best-fit linear combination of a transit model, a piecewise-Lambertian phase variation, and several detrending vectors. This fit is used to infer the best-fit transit parameters. The left column shows transit observations obtained during the in-orbit commissioning (IOC) phase, and the right column shows the phase curve observation. Middle: the residuals after the instrumental and systematic variations have been removed (black) and several draws from the posterior distributions for the transit and phase curve parameters (red). Lower: the residuals after removing allsystematics and astrophysical signals from the observations.