Example of a flattened TESS light curve and eRASS light curve for TIC 220473309 observed during the eRASS2 epoch of the star. The eRASS data points significantly above the quiescent level (purple-shaded area), also named as the ‘X-ray flare data points’ (XFDPs), are marked in red. The TESS flare data points are marked in dark blue. XFDPs around which TESS flares were found are marked as green squares, and the vertical bins of width 1 eROday in which they lie are marked with dashed blue lines.