Left panel: Naobeyama images on (a) 7 March 2014 and (b) 8 March 2014 after the conversion to Stonyhurst heliographic coordinates. Green rectangular boxes depict the bins B1 and B2 (−20° to −5° in latitude, ±45° in longitude) used for image correlation. Bins T1 and T2 depict the dominant bright features in the same bins identified by adaptive intensity thresholding. Right panel: Rotational profiles for Nobeyama 17 GHz data using initial values from ¹Ruždjak et al. (2017) and ²Poljančić Beljan et al. (2017) compared with the results using the same from ³Jha et al. (2021) and the values from ⁴Routh et al. (2024). Shaded areas denote uncertainties, detailed in section 3.