first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method B Bus VIS Bus 2002Icar..158..146B SPEC B C DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT C 0.950000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC