value	unc_up	unc_lo	author	ref	method
7.39	1.590	1.590	Nugent	2016AJ....152...63N	NEATM
8.09	0.103	0.103	Masiero	2011ApJ...741...68M	NEATM
8.09	0.140	0.140	Masiero	2014ApJ...791..121M	NEATM