value	unc_up	unc_lo	author	ref	method
5.39	1.200	1.200	Nugent	2016AJ....152...63N	NEATM
5.94	0.250	0.250	Masiero	2012ApJ...759L...8M	NEATM
6.19	0.050	0.050	Masiero	2014ApJ...791..121M	NEATM
6.27	0.033	0.033	Masiero	2011ApJ...741...68M	NEATM