first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method B Bus-DeMeo NIR de Leon 2012Icar..218..196D SPEC B Bus VIS Bus 2002Icar..158..146B SPEC B 0.962 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT B C 0.650000 0.350000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC