Stellar surface density at z∼0.3 for all the models. The host virial radius is indicated by the green dashed circle. “Reliable” satellite galaxies (see Section 2.5 for reliability definition) and field galaxies are marked with colored solid circles representing $0.5R_{\mathrm{vir}}^{\mathrm{sub}}$. Blue circles denote galaxies identified by both RCT and our particle-tracking method, while red circles indicate those identified as “reliable” only by our particle-tracking method, showing that RCT has lost them at any snapshot, thus preventing the study of the evolution of the subhalo properties.