Short-term variability of source 38, 4XJ1753-2446, during observation 0886090801. The left panel displays the background-subtracted 0.2−12.0 keV light curve with time bins of 50 s. The source light curve is shown as a solid black line and the background rate is a red dashed line. The right panel shows the light curve folded at a period of 2.03 ks with time bins of 127 s. The highlighted red and grey regions show the 3 σ and 5 σ confidence regions, respectively.