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 Bus VISNIR Binzel 2004Icar..170..259B SPEC S Tholen VIS Fevik 2007Icar..188..175F SPEC S A 0.780000 0.220000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC S S 0.1758 0.1758 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT