first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method C 0.18 Bus VIS Carvano 2010A&A...510A..43C PHOT V V 0.4992 0.1600 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT X V 0.1429 0.1600 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT