Standard deviation of the residuals (ppm) in- and out-of-transit for each planet (filled dots for in-transit data, empty dots for out-of-transit) such that for each transit’s epoch there is one empty dot and one filled dot. Each color is associated with a planet: purple for planet b, orange for c, yellow for d, olive for e, dark green for f, teal for g and turquoise for h. The dashed gray line show the limit value above we label the transits as outliers.