first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method B Bus-DeMeo VISNIR Hasegawa 2024AJ....167..224H SPEC C Bus VIS Bus 2002Icar..158..146B SPEC C 1.000000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC