first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method M C 0.670000 0.300000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC P C 0.610000 0.360000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC