first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method X Tholen VIS Lazzaro 2004Icar..172..179L SPEC X 0.990000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC Xe Bus VIS Carvano 2001Icar..149..173C SPEC Xe Bus VIS Lazzaro 2004Icar..172..179L SPEC