Result of the analysis with the 2D convolution model in the context of the equatorial T_B profile using the ECB model (Grueff at 18.3 GHz, top left; SRT at 18.8 GHz, bottom left) and the 2GECB model (Grueff at 18.3 GHz, top right; SRT at 18.8 GHz, bottom right). The T_B profiles of the Grueff Radio Telescope were obtained on September 6, 2020; the SRT T_B profiles were obtained on January 8, 2021. See the caption of Fig. 6 for a full description of the profiles.