Void-galaxy CCF in real space, measured in the Flagship simulation z_eff = 1.0 redshift bin. From top to bottom, the panels show the monopole, quadrupole and hexadecapole moments of the CCF. The multipoles of ξ^rr, corresponding to the perfect reconstruction scenario and measured using the true real-space positions are shown in blue, while light and dark red respectively show the multipoles of ξ^pp obtained using reconstruction without and with redshift errors. The inset panels show the residuals with respect to the perfect reconstruction case of for each multipole. In all cases ξ₂ and ξ₄ are close to zero, indicating that reconstruction successfully removes orientation-dependent selection bias.