first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method B Bus-DeMeo NIR Chavan 2025A&A...695A.254C SPEC B Bus VIS Bus 2002Icar..158..146B SPEC C 0.920000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC