Observed source spectrum (black=MOS1, red=MOS2, green=pn) with power-law best-fit model reported. The spectra of the three cameras and three observations were jointly fitted, but the results of a single ObsID (0923400401) were reported for clarity. For energy ranges 1.2-1.9 keV (for the MOS detectors) and 1.2-1.7 keV and 7-9.2 keV (for the pn detector) were excluded during the fit. Each spectral bin was re-binned to a minimum significance of 5σ for visualization purposes.