Outlier removal routine for two regions of the same order, with respect to an observation for which outlier identification achieved convergence after the first iteration. For representation purposes, we normalized the flux in the center and the edge of the order. Top row: comparison between the stellar template (red line) and the spectra (black line). The blue crosses represent the points that were flagged by the method. Bottom row: differences between the template and spectra (black points). The blue line is the median value, whilst the dotted red lines represent a 6σ difference from it.