first_spec_class	second_spec_class	prob_first_spec_class	prob_second_spec_class	taxonomy	wavelength	author	ref	method
S				Tholen	VIS	Vilas	1992Icar..100...85V	SPEC
S		1.000000		Mahlke	VISNIR	Mahlke	2022A&A...665A..26M	SPEC
X				Tholen	VIS	Xu	1995Icar..115....1X	SPEC