value	unc_up	unc_lo	author	ref	method
0.040	0.0144	0.0144	Masiero	2011ApJ...741...68M	NEATM
0.046	0.0279	0.0279	Masiero	2017AJ....154..168M	NEATM
0.050	0.0300	0.0300	Nugent	2016AJ....152...63N	NEATM
0.068	0.0490	0.0490	Masiero	2020PSJ.....1....5M	NEATM