value	unc_up	unc_lo	author	ref	method
4.79	0.987	0.987	Masiero	2017AJ....154..168M	NEATM
6.35	1.650	1.650	Masiero	2020PSJ.....1....5M	NEATM
6.91	1.230	1.230	Masiero	2012ApJ...759L...8M	NEATM