first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method Q DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT Q 0.30 Bus VIS Carvano 2010A&A...510A..43C PHOT S S 0.4549 0.4549 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT