first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method C X 0.2254 0.0900 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT S X 0.1669 0.0900 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT