Phase-folded data with best-fit occultation model (unbroken red line). Individual imagette measurements have an average photometric uncertainty of 237 ppm and fill the figure with small, light grey points. To better visualise the occultation, data points are also shown averaged to 3.7 min bins (grey) and 20.5 min bins (black). The bin sizes are chosen to divide the occultation duration into an integer number of bins. Lower panel: residuals after the occultation model was subtracted from the data.