value	unc_up	unc_lo	author	ref	method
3.52	0.733	0.733	Masiero	2017AJ....154..168M	NEATM
3.53	0.328	0.328	Masiero	2011ApJ...741...68M	NEATM
4.07	0.510	0.510	Masiero	2012ApJ...759L...8M	NEATM
4.08	1.220	1.220	Masiero	2021PSJ.....2..162M	NEATM