Histograms of the CCF values in- and out-of-trail. The ‘in-trail’ distribution corresponds to a 1 km s⁻¹ wide bin around v = −1 km s⁻¹ for a CCF map aligned to the planet rest frame using K_p = 101 km s⁻¹. The ‘out-of-trail’ distribution corresponds to the values obtained in the bins spanning from -250 to -10 and +10 to +250 km s⁻¹. Both distributions are obtained for the data obtained between the second and third contact of the planet transit.