value	unc_up	unc_lo	author	ref	method
3.87	0.732	0.732	Masiero	2017AJ....154..168M	NEATM
4.03	0.116	0.116	Masiero	2011ApJ...741...68M	NEATM
4.06	1.100	1.100	Masiero	2021PSJ.....2..162M	NEATM