value	unc_up	unc_lo	author	ref	method
0.033	0.0294	0.0294	Masiero	2017AJ....154..168M	NEATM
0.058	0.0090	0.0090	Masiero	2012ApJ...759L...8M	NEATM
0.059	0.0129	0.0129	Masiero	2011ApJ...741...68M	NEATM