value	unc_up	unc_lo	author	ref	method
6.78	0.065	0.065	Masiero	2011ApJ...741...68M	NEATM
6.86	1.670	1.670	Masiero	2021PSJ.....2..162M	NEATM
6.87	1.866	1.866	Masiero	2017AJ....154..168M	NEATM