Averaged and modelled T_B profiles obtained at the observing frequencies of 18.3 (left) and 25.8 GHz (right) with the Grueff Radio Telescope. These plots differ in the T_By-axis scale (linear on top, logarithmic on bottom). Red solid line indicates the modelled T_B profile, obtained from the convolution between the eSSC model (Eq. (4)) and the beam pattern of the receiver for each observing frequency. Green dot-dashed and blue dotted lines indicate the equatorial and polar profiles of the averaged solar map, respectively.