first_spec_class	second_spec_class	prob_first_spec_class	prob_second_spec_class	taxonomy	wavelength	author	ref	method
C	X			Tholen	VIS	Xu	1995Icar..115....1X	SPEC
S		0.910000		Mahlke	VIS	Mahlke	2022A&A...665A..26M	SPEC