value	unc_up	unc_lo	author	ref	method
6.89	1.783	1.783	Masiero	2017AJ....154..168M	NEATM
8.41	0.268	0.268	Masiero	2011ApJ...741...68M	NEATM
8.46	0.314	0.314	Masiero	2011ApJ...741...68M	NEATM