Transits of WASP-148 b (blue points) and the MAP model (black line) from the photodynamical modelling (Section 6). Each panel is centred at the linear ephemeris (indicated by the vertical grey lines, and reported in the caption of Fig. 7). For the SANCHEZ transit, 90-second binned data are shown in grey in addition to the observed data points. Each panel is labelled with the epoch; zero is the transit at t_ref^. In the lower part of each panel, the residuals after subtracting the MAP model are shown.