BHB star density of the sky patches crossed by the LMC’s past orbit (Vasiliev 2023) as a function of the (L_MS, B_MS) coordinates (Nidever et al. 2008). Each patch has an equal projected area of 859.44 deg² (healpy using nside = 2) and the density is calculated within 50 < r/kpc < 120. The 16th–84th percentiles of the average BHB density within this distance is shown by the shaded green line. Top panel: the density profile along LMC’s orbit from point A to the pixel containing LMC. At B₁, the pixel dominated by Pisces overdensity shows a clear signature of the overdensity in contrast to regions further away from it at L_MS < 230°. Bottom panel: the density profile as a function of B_MS from point B₀ to B₁. At these large distances, and due to the steepness of the profile, the average density is dominated by the regions with the overdensities as illustrated in both panels. The lighter purple points correspond to the density at smaller patches (healpy using nside = 4) across the LMC’s orbit.