first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method S-complex Bus-DeMeo NIR Binzel 2019Icar..324...41B SPEC S Bus-DeMeo NIR Marsset 2022AJ....163..165M SPEC S 0.990000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC S 1.000000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC Sq Bus VISNIR de Leon 2010A&A...517A..23D SPEC Sr Bus-DeMeo NIR Marsset 2022AJ....163..165M SPEC