Thermophysical model fit for asteroid Oersted using the nonconvex ADAM shape model. The plot shows the chi-square (χ²) as a function of thermal inertia for various levels of surface roughness, characterized by the mean surface slope angle, θ̄. Each curve corresponds to a different roughness value, as indicated in the legend. The best-fit solution corresponds to Γ = 37 J m⁻² s^−1/2 K⁻¹ and θ̄ = 32.8°, with a minimum reduced χ² of 2.00.