first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method Bk Kl Movis NIR Popescu 2018A&A...617A..12P PHOT S 1.000000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC X Tholen VIS Lazzaro 2004Icar..172..179L SPEC Xk Bus VIS Lazzaro 2004Icar..172..179L SPEC