Predicted orbit of the companion around the primary star (black curve) with the predicted positions from Hummel et al. (2013; blue markers), and the measurements (red markers). We plot positions on 2017 Oct 12 (circles) and on 2017 Oct 14 (diamonds). We also plot the predicted positions computed with the new orbital parameters including our measurements for 2017 Oct 12 (gray triangles) and 14 (gray squares).