Comparison of the moon position fitting for the SPHERE/DC (dark red) and PIC pipelines (dark blue) for the three moons: S1 (first line, red frame), S2 (second line, green frame), and S3 (third line, blue frame). The positions are given in polar coordinates, separation (first column), and angle (second column) as well as Cartesian coordinates (xy-positions, third column). The dots are the position individually fitted in each acquisition. The curves are the temporal linear fits performed on the polar coordinates.