Elliptical fits in the ADI-reduced total intensity image (a) display the geometrical parameters of the inner (R3, 47 au), middle (R2, 64 au), and outer (R1, 93 au) rings constrained in Perrot et al. (2016). The same ellipses when overlapped in the IRDAP-reduced polarized intensity (b) indicate that the position of these structures were not well constrained in the total intensity data. The labels and arrows indicating R1, R2 and R3 in both images are exactly at the same position. The image (b) also shows the orientation of the best-fit model of GPI at the PA of 5°. Both images are at the same spatial scale and represent the measured contrast.