value	unc_up	unc_lo	author	ref	method
7.08	1.704	1.704	Masiero	2017AJ....154..168M	NEATM
7.27	3.000	3.000	Masiero	2012ApJ...759L...8M	NEATM
7.65	0.049	0.049	Masiero	2011ApJ...741...68M	NEATM