Comparison of thermophysical model fits using the convex shape of asteroid Oersted without (left) and with (right) color correction. 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 thermal inertia is Γ = 37 J m⁻² s^−1/2 K⁻¹ in both cases. Color correction leads to a marginal decrease in the fit quality, increasing the minimum χ² from 1.66 to 1.71, but it does not significantly affect the derived physical parameters.