first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method D Tholen VIS Xu 1995Icar..115....1X SPEC D D 0.9790 0.9790 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT D S 0.590000 0.410000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC