NuSTAR spectra with ~1 ksec exposure through the whole pointing spanning ~2.5 orbits. Orbital phase is indicated in parenthesis (left panel: first half orbit, middle panel: second orbit, right panel: third orbit). The spectra are fitted with a model consisting of absorbed blackbody, Comptonization, and Gaussian components multiplied by three absorption edges from neutral and ionized iron. The model residuals are shown in the bottom panels. The plotted spectra are from FMPA for clarity, but the models are fitted to both detectors simultaneously.