first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method C 0.77 Bus VIS Carvano 2010A&A...510A..43C PHOT C C 0.3056 0.2260 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT X C 0.5435 0.2260 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT