value	unc_up	unc_lo	author	ref	method
3.80	0.220	0.220	Masiero	2012ApJ...759L...8M	NEATM
4.28	0.051	0.051	Masiero	2011ApJ...741...68M	NEATM
4.32	1.140	1.140	Nugent	2016AJ....152...63N	NEATM