GMM results with optical (the two left columns) and NIR (the two right columns) polarization in C5 (top), C45 (middle), and C50 (bottom). The first and third columns are the group separations in normalized q−u space. The ellipses represent the Gaussian components. The second and fourth columns are the group membership probability as a function of photogeometric distance. The colors correspond to the components of Figures 8– 10.