first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method S Bus-DeMeo VISNIR DeMeo 2009Icar..202..160D SPEC S Bus VIS Bus 2002Icar..158..146B SPEC S Q 0.870000 0.130000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC S S 0.9605 0.9605 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT