Best-fit orbit of Jhelum in the default MW potential (for σ_nuis = 6.7 km s⁻¹) plotted together with the orbit of Sgr (using the coordinates of M 54, see Table 1), both integrated backwards in time for 6 Gyr. The arrows indicate the direction in which Jhelum and Sgr are currently moving. It is clear that Jhelum and Sgr share approximately the same orbital plane, which results in repeated close encounters between the two. We note that Jhelum is currently passing through pericenter, which is the reason for the high observed velocity gradient seen in Fig. 8.