first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method Β Barucci-Tholen VIS Licandro 2008A&A...481..861L SPEC B Bus VIS Lazzaro 2004Icar..172..179L SPEC B Tholen VIS Lazzaro 2004Icar..172..179L SPEC P C 0.730000 0.150000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC