first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method D Barucci-Tholen VIS Fitzsimmons 1994A&A...282..634F SPEC D Barucci-Tholen VIS Lagerkvist 1993MNRAS.260..679L SPEC D Bus-DeMeo VISNIR DeMeo 2009Icar..202..160D SPEC D Tholen VIS Dahlgren 1997A&A...323..606D SPEC X Bus VIS Bus 2002Icar..158..146B SPEC X Bus VIS Bus 2002Icar..158..146B SPEC Z 0.980000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC