first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method Cg Bus-DeMeo NIR Arredondo 2021Icar..36814619A SPEC T X Bus-DeMeo VISNIR Avdellidou 2022A&A...665L...9A SPEC X 1.000 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT