value	unc_up	unc_lo	author	ref	method
6.52	1.975	1.975	Masiero	2017AJ....154..168M	NEATM
7.34	1.630	1.630	Masiero	2020PSJ.....1....5M	NEATM
7.96	0.287	0.287	Masiero	2011ApJ...741...68M	NEATM