first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method Q Bus-DeMeo VISNIR Binzel 2019Icar..324...41B SPEC Q Bus-DeMeo VISNIR DeMeo 2014Icar..227..112D SPEC Q Bus-DeMeo VISNIR Thomas 2014Icar..228..217T SPEC Q 1.000000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC S-complex Bus-DeMeo VIS Birlan 2024A&A...689A.334B PHOT