pn light curve of ρ Ophiuchi in broadband (0.3−8 keV), hard band (blue, >1 keV), soft band (red, <1.0 keV), and background. The events are extracted from a circular region centered on the X-ray centroid position (see Table 1) and of radius 16″. We observe three phases in ρ Ophiuchi curve: a low rate phase (0−30 ks), a rise phase (30−40 ks), and a high rate phase (>40 ks). The rate in the quiescent phase has a median value of ~182 ct/ks with a mean absolute deviation (MAD, marked by the red shaded area) of 15 ct/ks. High phase rate has a median rate of 280 ct/ks with MAD = 27 ct/ks (blue shaded area). The change in the rate is mostly seen above 1 keV, while the soft-band rate remains almost constant.