value	unc_up	unc_lo	author	ref	method
0.047	0.0180	0.0180	Masiero	2012ApJ...759L...8M	NEATM
0.048	0.0241	0.0241	Masiero	2017AJ....154..168M	NEATM
0.062	0.0137	0.0137	Masiero	2011ApJ...741...68M	NEATM