Composite-colour image with the flux in L band (3.60 μm) displayed in red and flux in N band (10.50 –11.50 μm) shown in blue. The solid white (dashed) circle represents the 3σ position prediction at MATISSE epoch for the clockwise (counter-clockwise) orbital motion. The white arcs show the path of the companion around the primary since the last superior conjunction, and the blue (red) arrow represents the sky-projected jet axis for the blueshifted (redshifted) direction.