Longitude-resolved fluence distributions per ≈650 μs, normalized by the average period-integrated fluence for each observing session. On 2D histogram, lighter colors correspond to larger number of counts in the given (phase × fluence) bin, with the darkest color corresponding to one count. The average phase-resolved fluence and its 20× and 100× multiplicatives are shown by white, red and gray lines, respectively. Spin phases beyond 0.7 are not shown.