first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method S 0.45 Bus VIS Carvano 2010A&A...510A..43C PHOT S S 0.9256 0.9000 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT V S 0.4100 0.9000 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT