value	unc_up	unc_lo	author	ref	method
5.75	1.010	1.010	Nugent	2016AJ....152...63N	NEATM
6.11	0.053	0.053	Masiero	2011ApJ...741...68M	NEATM
6.23	0.050	0.050	Masiero	2014ApJ...791..121M	NEATM