first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method V X 0.0222 0.3400 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT X X 0.3460 0.3400 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT