first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method Q Bus VIS Binzel 2019Icar..324...41B PHOT Q DeMeo-Carry VIS Carry PHOT Q DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT S S 0.6254 0.6254 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT X 0.12 Bus VIS Carvano 2010A&A...510A..43C PHOT