value	unc_up	unc_lo	author	ref	method
7.06	2.630	2.630	Masiero	2017AJ....154..168M	NEATM
7.21	1.860	1.860	Masiero	2021PSJ.....2..162M	NEATM
7.53	3.430	3.430	Masiero	2012ApJ...759L...8M	NEATM