Distribution of g-r colors in SDSS asteroids and taxonomic categorization of NEOs. Top: Color distribution of one million asteroids obtained from the SDSS (Sergeyev & Carry 2021) data set modeled by fitting a mixture of two Gaussians (represented by the black line). The two main taxonomic classes, silicate (depicted in orange) and carbonaceous (depicted in blue), were represented by the model. Bottom: Distribution of g-r colors and the taxonomy of NEOs analyzed using the two-component mixture model of the two primary classes in the SDSS data set (shown by lines). The carbonaceous and silicate taxonomy complexes are represented by blue and orange, respectively. Unclassified asteroids, where the probability of belonging to each complex is comparable, are represented in gray.