first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method S X 0.1566 0.2770 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT X X 0.3657 0.2770 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT