UV and X-ray light curves obtained by the OM and EPIC instruments onboard XMM-Newton on 2008 May 16–17. Black, red, and blue filled circles represent UVW1, UVM2, and UVW2 magnitudes, respectively. Arrows mark the data points used for the SED shown in Fig. 9. Green diamonds, black squares, and red triangles refer to pn (0.5–10 keV), MOS1 (0.3–10 keV), and MOS2 (0.3–10 keV) count rates, respectively. Plus signs show the corresponding backgrounds. In all panels horizontal dashed lines indicate average values and dotted lines represent standard deviations from the mean.