value	unc_up	unc_lo	author	ref	method
5.55	1.410	1.410	Nugent	2016AJ....152...63N	NEATM
6.16	1.630	1.630	Masiero	2012ApJ...759L...8M	NEATM
7.96	0.019	0.019	Masiero	2011ApJ...741...68M	NEATM