first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method B 0.633 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT B C 0.560000 0.440000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC