Radial velocities of the black hole (red dashed line) and the companion (orange dashed line), and wind velocities projected onto the line of sight as a function of distance from the black hole. Distances are given in units of the distance between the black hole and its donor, d. Colored boxes indicate the range of measured non-dip Doppler shifts from the Chandra observations (red: ObsID 3815; yellow: ObsID 3814; green: ObsID 8525; and blue: ObsID 9847, modified and corrected from Paper II, Fig. 11). Symbols show the median (star), mean (circle), first (point-up triangle), and third quartile (point-down triangle) of the distribution of Doppler shifts for the Si and S lines.