X-ray spectra extracted from the positive-excess region (left) and from the negative-excess region (right) for each ObsID shown with the best-fit APEC models. The ratios of the data to the model are plotted in the bottom panels. The spectra in black, red, and green are extracted from the data of ObsID = 6880, 6881, and 7370, respectively. All of the X-ray spectra are reproduced with the APEC model.