Updated Fig. 2 from Schunker et al. (2019) using the updated algorithm. Average over the position of 153 positive (red) and negative (blue) polarities relative to the corrected centre of the map from τ = −18.4 h (three time intervals, TI-03) before the emergence time, until τ = 2.1 days after (TI+09). The centre of each of the maps were tracked at the Carrington rotation rate (Snodgrass 1984). We corrected the centre of the map by subtracting the displacement due to difference between the quiet-Sun plasma rotation rate x_Ω = R_⊙Ω(λ)cos(λ)Δτ, where λ is the latitude of the centre of the Postel projected map (see Table A.1 in Schunker et al. 2016). The blue and red curves cover the time intervals from TI-03 to TI+09. The grey lines with large (small) circles shows the motion of the polarities belonging to regions with maximum flux higher (lower) than the median flux. The shaded regions indicate Phase 1, when the separation speed between the polarities increases, and Phase 2 when the separation speed decreases (see Fig. 4, Schunker et al. 2019).