first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method L 0.33 Bus VIS Carvano 2010A&A...510A..43C PHOT S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT X X 0.3325 0.3325 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT