value	unc_up	unc_lo	author	ref	method
6.94	0.131	0.131	Masiero	2011ApJ...741...68M	NEATM
7.24	0.210	0.210	Masiero	2011ApJ...741...68M	NEATM
8.00	2.069	2.069	Masiero	2017AJ....154..168M	NEATM