Pulse profile as a function of rotational phase for both Observations I (left) and II (right). Two pulses are shown for clarity. The dotted line shows the total pulse profile from 3–79 keV. The black, red, green, and blue solid lines denote the 3–8 keV, 8–20 keV, 20–40 keV, and 40–79 keV pulse profiles, respectively. All error bars are 1σ; for large count rates, error bars are too small to be visible.