first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method B C 0.590000 0.410000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC C Bus VIS Lazzaro 2004Icar..172..179L SPEC C Tholen VIS Binzel 1993Sci...260..186B SPEC C Tholen VIS Lazzaro 2004Icar..172..179L SPEC C X Tholen VIS Xu 1995Icar..115....1X SPEC S 1.000000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC