Graphical representation of the procedure followed to parametrize the near-infrared colors in MOVIS. The left panel shows the kernel density estimation plot of the J− Ks (JmK) vs. Y −J (YmJ) distributions. Brighter regions correspond to higher density of points. The straight line connects the two main cluster centers (peaks of maximum density). The third cluster (Y − J >0.5) corresponds to basaltic asteroids (Popescu et al. 2016). The right panel shows the univariate PDF estimation for the ML^* before the computation of the required offset to set the separation between the rocky and primitive asteroids clusters at the origin. The vertical black line indicates the point where the PDF density is minimum between the two maxima. We used the C_0.10 subset for this example.