Putative transits of planet b. From top to bottom: Light curves of CHEOPS visits 102, 201 and 304, in which planet b transits were expected to occur. Colored regions show the expected transits mid-time with their ±1σ errors. Transits due to other planets than b have already been removed. The solid black curve represent the best fits for planet b, while fixing its depth and duration to D = 252 ppm and T₁₄ = 2.00 h.