Location of our targets overlaid on an RGB rendering of the distribution of Milky Way halo stars in an Equatorial-Carré view. The latter has been produced by combining the 8 (blue channel), 15 (green channel), 25 (red channel) kpc slices from the Pan-STARRS1 3π Survey data-set from https://zenodo.org/record/60518#.WHTxMHqvelM, obtained by applying to the Pan-STARRS1 3π Survey data-set matched-filter technique using an [Fe/H] =−1.5 and 12 Gyr old model in the g,r bands (for details, we refer the reader to Bernard et al. 2016). The grid is in Galactic coordinates.