first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method XL 0.36 Bus VIS Carvano 2010A&A...510A..43C PHOT L DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT L L 0.8454 0.8454 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT