first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method K Bus VIS Bus 2002Icar..158..146B SPEC L Bus-DeMeo VISNIR Clark 2009Icar..202..119C SPEC L Bus-DeMeo VISNIR DeMeo 2009Icar..202..160D SPEC L Bus-DeMeo VISNIR Devogele 2018Icar..304...31D SPEC M 0.830000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC M 0.870000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC M S 0.560000 0.280000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC