first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method S Bus-DeMeo NIR Marsset 2022AJ....163..165M SPEC S Bus VIS Binzel 2019Icar..324...41B SPEC S Tholen VIS Michelsen 2006A&A...451..331M SPEC S 0.880000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC Sr Bus-DeMeo NIR Marsset 2022AJ....163..165M SPEC