Local CCF map for both nights. Each row corresponds to a local CCF expressed in velocity in the star rest frame at a given time. The two dashed dotted horizontal black lines represent the contact points t₁ and t₄, the dashed horizontal black lines are t₂ and t₃, and the vertical dashed black line is at null velocity. The white crosses are the local velocities derived by the Gaussian fit. The RMeffect is clearly visible, as shown by the green trace for both nights.