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 0.910 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT S 0.920000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC Sa Bus VIS Bus 2002Icar..158..146B SPEC