value	unc_up	unc_lo	author	ref	method
6.41	2.190	2.190	Nugent	2016AJ....152...63N	NEATM
6.93	2.230	2.230	Nugent	2016AJ....152...63N	NEATM
7.06	0.219	0.219	Masiero	2011ApJ...741...68M	NEATM