value	unc_up	unc_lo	author	ref	method
0.034	0.0165	0.0165	Masiero	2017AJ....154..168M	NEATM
0.047	0.0260	0.0260	Masiero	2012ApJ...759L...8M	NEATM
0.080	0.0152	0.0152	Masiero	2011ApJ...741...68M	NEATM