first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method P 0.970000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC X Tholen VIS Xu 1995Icar..115....1X SPEC X 0.216 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT