Evolution of spectral model parameters with pulse phase (black) for Obs. I, along with the component-resolved column emission as presented in Paper I. The model consists of an absorbed power law with exponential folding and an additional black-body component, as well as Fe Kα emission line and an absorption feature with Gaussian optical depth (gabs). The free parameters (top to bottom, left to right) are the black-body temperature in keV; the power-law and black-body fluxes in 10⁻⁹ erg s⁻¹ cm⁻²; the photon index; the folding energy in keV; the Fe Kα line flux in 10⁻³ photons cm⁻² s⁻¹; the energy, width, and strength of the Gaussian absorption feature in keV. The depth of the 10 keV absorption feature is consistent with zero at ϕ ∼ 0.3, and energy and width cannot be constrained. The bottom right panel shows the pulse profile model with a solid and dashed line indicating wall and top emission components, respectively, for the two accretion columns and the full pulse profile in black. All panels show the 3–78 keV NuSTAR pulse profile of Obs. I in light gray. The pulse profile model was obtained by fitting the 3.5–4.5 keV NICER pulse profile of ObsID 4201960113.