first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method S 0.07 Bus VIS Carvano 2010A&A...510A..43C PHOT S S 0.6591 0.1450 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT U DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT X 0.309 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT