Three-dimensional rendering of the field lines at t = 2.4 days, i.e., stage S2. Color shows the field strength logarithm (code units), while gray contours outline the region where s = 1/2. The camera is set at an elevation of 60 deg, along the negative direction of the Y-axis. The orbit is shown with a solid green line. The straight red line is directed toward the black hole. The scale is shown by a 10 R_⊙ segment in the upper part of the picture.