value	unc_up	unc_lo	author	ref	method
4.46	0.850	0.850	Nugent	2016AJ....152...63N	NEATM
4.46	1.080	1.080	Nugent	2016AJ....152...63N	NEATM
6.32	1.602	1.602	Masiero	2017AJ....154..168M	NEATM