first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method C Tholen VIS Alvarez-Candal 2006A&A...459..969A SPEC D X 0.0450 0.0930 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT X X 0.1074 0.0930 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT