First column: continuum light curve in magnitude (first panel) and the seven curves in different wavebands derived from the combination of photometric and the spectroscopic observations (remaining panels). The corresponding waveband ranges are listed in Table 3. Curves 1 and 7 are in unit of 10⁻¹⁷ and other curves are in 10⁻¹⁶. Second column: auto-correlation of continuum and the ICCF results for all the curves with respect to continuum. Histograms are the peak (red) and centroid (blue) distribution from the ICCF with 10 000 bootstrap realizations.