Estimated values of the regions related to the core and Region C at 43 GHz. Each value was obtained by computing the corresponding pixels. The first four panels (from top to bottom) indicate brightness temperature, total intensity, linearly polarized intensity, and polarization degree. The last two panels are polarization angles, but the one in the bottom panel was obtained after resolving the nπ-ambiguity following the method in Blinov et al. (2016). The blue dotted and dashed lines show the ejection and segmentation time of knot B19 (Weaver et al. 2022).