first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method S X 0.5427 0.2910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT X X 0.4643 0.2910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT