first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method C 0.30 Bus VIS Carvano 2010A&A...510A..43C PHOT C X 0.1957 0.1470 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT S X 0.2036 0.1470 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT