first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method Q Bus-DeMeo VISNIR Binzel 2019Icar..324...41B SPEC Q Bus VISNIR de Leon 2010A&A...517A..23D SPEC S Tholen VISNIR de Leon 2006AdSpR..37..178D SPEC S Q 0.500000 0.500000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC S Q 0.720000 0.270000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC