Model constraints on the parameters of the underlying DM distribution, ρ₀, r_s, γ, q_DM , and p_DM. The three parameters determining the radial distribution, ρ₀, r_s, and γ, are degenerate due to the lack of data points at r < 8 kpc and r > 50 kpc. However the 3D DM distribution within our data coverage (r < 50 kpc) are well constrained by our model, with a significant role played by the density distribution, ${\chi }_{\mathrm{d}\mathrm{e}\mathrm{n}}^2$.