first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method C Tholen VIS Vilas 1992Icar..100...85V SPEC C 0.833 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT P 0.940000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC X Tholen VIS Alvarez-Candal 2006A&A...459..969A SPEC X X 0.6386 0.6386 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT