first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method X S 0.2070 0.1550 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT S S 0.3058 0.1550 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT