value	unc_up	unc_lo	author	ref	method
15.57	0.143	0.143	Masiero	2011ApJ...741...68M	NEATM
16.52	5.427	5.427	Masiero	2017AJ....154..168M	NEATM
18.12	4.180	4.180	Nugent	2016AJ....152...63N	NEATM