first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method C 0.65 Bus VIS Carvano 2010A&A...510A..43C PHOT S S 0.6292 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT X S 0.2888 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT