Initial and KNAK corrected models (see Appendix B) for Obs 1 (left) and Obs 2 (right). The initial models were from Paper III (green and pink), while the corrected models are in blue and purple, respectively. The C-statistic values are displayed, along with their respective degrees of freedom in the parentheses. The bottom panels show the residuals between the data and model. Appendix B explains the steps required to correct the models, shown in Fig. B.1.