first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method D Barucci-Tholen VIS Fitzsimmons 1994A&A...282..634F SPEC D Barucci-Tholen VIS Lagerkvist 1993MNRAS.260..679L SPEC D 0.990000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC