VLBI images of brightness distributions at 8 and 15 GHz are shown together with estimated median direction of their jets (green arrow, the j vector) for the four targets out of the total of 2957 used in the analysis. Low-to-high surface brightness is shown by color from dark blue to dark red. The VLBI beam is shown by the light green ellipse at the half power level in the bottom left corner. The relative position of the peak intensity pixel on the map is formally chosen as the VLBI astrometry reference point of the target to illustrate the effect. The vector VG is shown in light blue relative to this location from VLBI-to-Gaia position and black ellipses represent 1σ errors. is measured to be 4°, 73°, 164°, and 1° for J0005+3820, J0433+0521 (3C 120), J1229+0203 (3C 273), and J1800+7828 (S5 1803+784), respectively.