value	unc_up	unc_lo	author	ref	method
5.80	1.140	1.140	Nugent	2016AJ....152...63N	NEATM
6.48	0.130	0.130	Masiero	2012ApJ...759L...8M	NEATM
6.49	0.120	0.120	Masiero	2014ApJ...791..121M	NEATM
6.86	0.045	0.045	Masiero	2011ApJ...741...68M	NEATM