22 GHz image of OJ 287 on April 25, 2016. Left: total intensity image shown in brightness temperature (T_b) units, calculated using the relation T_b = I_νc²/(2kν²), where I_ν is the specific intensity per pixel. The pixel size used is 5 μas, derived from the total field of view and the image resolution (320 pixels across). The peak T_b reaches ∼6 × 10¹² K in the core region. Right: total intensity contours (dashed white lines) spaced logarithmically between 0.01% and 0.1% of the peak intensity. The color map shows the magnitude of the linearly polarized flux. Regions where polarization is not reliably detected downstream have been masked. White ticks indicate the EVPA orientation. Yellow circles mark the centroids of the two-dimensional Gaussian-fitted components. Polarized features P1, P2, and P3 are shown in purple. The central dashed green curve traces the jet ridgeline, as derived from the smoothed image (see Sect. 3).