first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method D Bus VIS Lazzaro 2004Icar..172..179L SPEC D Tholen VIS Lazzaro 2004Icar..172..179L SPEC M P 0.800000 0.140000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC