Time-averaged and time-resolved polarization contours of four multiple IXPE observations. In the top panel, each colored contour represents the significance of the time-averaged polarization detection for the corresponding observation (Obs. 1 in red, Obs. 2 in orange, Obs. 3 in green, and Obs. 4 in blue). Contours are shown at confidence levels of 68.27%, 90.00%, and 99.00%, as determined from a χ² test with two degrees of freedom. Additionally, the black line and gray shaded areas indicate the jet’s electric-vector position angle in degrees as observed by the VLBA at 43 GHz (Obs. 1 is 100 ± 10°, Obs. 2 is 147 ± 7°, Obs. 3 is 147 ± 7°, and Obs. 4 is 171 ± 10°). In the bottom panel, the 99.00% confidence level contours show the time variation in polarization properties as determined by dividing the data into three identical time intervals for each observation. In the cases of Obs. 2 (orange) and Obs. 3 (green), arrows indicate a rotation of ψ_X from the start to the end of the observation.