value	unc_up	unc_lo	author	ref	method
6.45	1.689	1.689	Masiero	2017AJ....154..168M	NEATM
6.81	1.470	1.470	Masiero	2021PSJ.....2..162M	NEATM
7.38	0.204	0.204	Masiero	2011ApJ...741...68M	NEATM
7.58	2.089	2.089	Masiero	2017AJ....154..168M	NEATM