The top panel shows the input spectra from August 10 a) and August 13 b) that correspond to the phases 0.43 and 0.64, with the input S/N values of 99.3 and 102.1, respectively. The lower panel shows the LSD profile correspondence of the related spectrum with the deconvolved S/N values 935 and 943. A part of the wavelength region is plotted in order to more clearly represent the quality of observations.