value	unc_up	unc_lo	author	ref	method
6.43	1.952	1.952	Masiero	2017AJ....154..168M	NEATM
7.23	1.610	1.610	Masiero	2017AJ....154..168M	NEATM
9.81	0.079	0.079	Masiero	2011ApJ...741...68M	NEATM