first_spec_class second_spec_class prob_first_spec_class prob_second_spec_class taxonomy wavelength author ref method D D 0.0267 0.0550 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT D D 0.0646 0.0550 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT