first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method A Bus-DeMeo NIR DeMeo 2019Icar..322...13D SPEC A 0.13 Bus VIS Carvano 2010A&A...510A..43C PHOT U DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT