first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method Q 0.09 Bus VIS Carvano 2010A&A...510A..43C PHOT S S 0.4282 0.4282 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT X 0.343 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT