first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method C 0.09 Bus VIS Carvano 2010A&A...510A..43C PHOT C C 0.2781 0.2290 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT X C 0.1157 0.2290 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT