Left: logarithm of the CI vs. difference in center assigned by ASteCA with true center. Sizes vary according to the initial masses (larger mean larger initial mass) and colors according to the distance (see colorbar to the right). Right: logarithm of the CI vs. radius difference (ASteCA minus true value) for each SOC. In both plots shaded regions mark the range where 50% of all SOCs are positioned and estimated errors are shown as gray lines.