value	unc_up	unc_lo	author	ref	method
3.78	0.860	0.860	Nugent	2016AJ....152...63N	NEATM
6.28	0.145	0.145	Masiero	2011ApJ...741...68M	NEATM
7.13	1.410	1.410	Nugent	2016AJ....152...63N	NEATM