value	unc_up	unc_lo	author	ref	method
7.17	1.560	1.560	Nugent	2016AJ....152...63N	NEATM
7.55	1.140	1.140	Nugent	2016AJ....152...63N	NEATM
9.22	0.100	0.100	Masiero	2014ApJ...791..121M	NEATM
9.40	0.088	0.088	Masiero	2011ApJ...741...68M	NEATM