value	unc_up	unc_lo	author	ref	method
2.96	0.672	0.672	Masiero	2017AJ....154..168M	NEATM
3.23	0.139	0.139	Masiero	2011ApJ...741...68M	NEATM
3.82	0.800	0.800	Masiero	2021PSJ.....2..162M	NEATM