first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method C Tholen VIS Fornasier 2014Icar..233..163F SPEC C P 0.560000 0.420000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC P 1.000000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC X Bus VIS Bus 2002Icar..158..146B SPEC X Bus VIS Fornasier 2014Icar..233..163F SPEC