first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method S S 0.0511 0.2090 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT S S 0.2162 0.2090 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT