first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method S Bus VIS Bus 2002Icar..158..146B SPEC S Tholen VIS Clark 1995Icar..113..387C PHOT S 1.000000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC X X 0.7480 0.7480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT