first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method C C 0.0152 0.0152 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT V V 0.0245 0.0220 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT