first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method D Bus-DeMeo NIR De Pra 2018Icar..311...35D SPEC D D 0.7055 0.7055 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT DP Tholen VIS Dahlgren 1995A&A...302..907D SPEC