first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method S Bus VIS Lin 2018P&SS..152..116L PHOT Sr Bus-DeMeo VISNIR Binzel 2019Icar..324...41B SPEC Sr Bus VISNIR de Leon 2010A&A...517A..23D SPEC Sr Bus VISNIR Lazzarin 2005MNRAS.359.1575L SPEC