value	unc_up	unc_lo	author	ref	method
6.36	1.440	1.440	Masiero	2021PSJ.....2..162M	NEATM
6.45	0.145	0.145	Masiero	2011ApJ...741...68M	NEATM
6.50	1.670	1.670	Masiero	2017AJ....154..168M	NEATM