Estimated relative shifts in Faraday depth (ΔФ_shift) of each ten-minute interval of the 011 observation with respect to the full eight-hour reference (014) observation (thick solid black line). The calculated RM_ion corrections based on the satellite TEC measurements are plotted with a thick dashed black line. The thin solid coloured lines give the ΔΦ_shift in the field-oſ-view quadrants.