first_spec_class	second_spec_class	prob_first_spec_class	prob_second_spec_class	taxonomy	wavelength	author	ref	method
B				Bus	VIS	Binzel	2019Icar..324...41B	SPEC
B				Bus	VIS	Bus	2002Icar..158..146B	SPEC
S	M	0.430000	0.390000	Mahlke	VIS	Mahlke	2022A&A...665A..26M	SPEC