value	unc_up	unc_lo	author	ref	method
7.36	0.145	0.145	Masiero	2011ApJ...741...68M	NEATM
7.55	1.730	1.730	Masiero	2020PSJ.....1....5M	NEATM
8.74	2.110	2.110	Masiero	2017AJ....154..168M	NEATM