Left panel: TS map of the 2 ° ×2° region centered on UKS 1 with the best-fit diffuse background and contributions from the 4FGL sources subtracted. The black circle represents the tidal radius (3.2′) of UKS 1 at a distance of 15.6 kpc (Fernández-Trincado et al. 2020). The colour scale shows the TS value of every bin of 0.1 ° ×0.1°. Right panel: Same as the left panel, but with three additional sources further subtracted (see Appendix A).