value	unc_up	unc_lo	author	ref	method
5.95	1.090	1.090	Nugent	2016AJ....152...63N	NEATM
6.26	0.140	0.140	Masiero	2014ApJ...791..121M	NEATM
6.36	0.114	0.114	Masiero	2011ApJ...741...68M	NEATM