value	unc_up	unc_lo	author	ref	method
0.030	0.0400	0.0400	Nugent	2016AJ....152...63N	NEATM
0.031	0.0840	0.0840	Masiero	2012ApJ...759L...8M	NEATM
0.038	0.0225	0.0225	Masiero	2017AJ....154..168M	NEATM