value	unc_up	unc_lo	author	ref	method
5.61	1.320	1.320	Nugent	2016AJ....152...63N	NEATM
6.16	1.722	1.722	Masiero	2017AJ....154..168M	NEATM
6.24	0.250	0.250	Masiero	2011ApJ...741...68M	NEATM
6.48	0.160	0.160	Masiero	2012ApJ...759L...8M	NEATM