value	unc_up	unc_lo	author	ref	method
0.050	0.0170	0.0170	Masiero	2012ApJ...759L...8M	NEATM
0.050	0.0500	0.0500	Nugent	2016AJ....152...63N	NEATM
0.059	0.0314	0.0314	Masiero	2017AJ....154..168M	NEATM