value	unc_up	unc_lo	author	ref	method
10.29	3.445	3.445	Masiero	2017AJ....154..168M	NEATM
6.24	0.046	0.046	Masiero	2011ApJ...741...68M	NEATM
8.54	0.160	0.160	Masiero	2012ApJ...759L...8M	NEATM
9.01	2.150	2.150	Nugent	2016AJ....152...63N	NEATM