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 Bus-DeMeo NIR De Pra 2018Icar..311...35D SPEC P C 0.500000 0.490000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC X 0.331 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT