first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method Q 0.42 Bus VIS Carvano 2010A&A...510A..43C PHOT S S 0.8415 0.5870 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT X S 0.2546 0.5870 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT