value	unc_up	unc_lo	author	ref	method
6.87	1.430	1.430	Nugent	2016AJ....152...63N	NEATM
7.51	0.110	0.110	Masiero	2014ApJ...791..121M	NEATM
7.82	0.102	0.102	Masiero	2011ApJ...741...68M	NEATM
8.15	0.570	0.570	Masiero	2012ApJ...759L...8M	NEATM