value	unc_up	unc_lo	author	ref	method
0.034	0.0168	0.0168	Masiero	2017AJ....154..168M	NEATM
0.079	0.0016	0.0016	Masiero	2011ApJ...741...68M	NEATM
0.084	0.1020	0.1020	Masiero	2012ApJ...759L...8M	NEATM