Top left panel: relative astrometric positions of the three proposed companions of PDS 70 with respect to the host star, represented by the black star symbol. The positions of the inner and of the outer disk are also displayed through light cyan areas. The solid black lines represent the expected course of the companion if it were a background object. The length differences between the black lines for different objects are due to the different temporal coverage that we have for each of them. The black squares at the end of the line represent the expected position at the epoch of the last observation in this case. For clarity, we show a zoomed-in version of the areas around each companion in the top right panel for PDS 70 b, in the bottom left panel for PDS 70 c, and in the bottom right panel for the PLF.