value	unc_up	unc_lo	author	ref	method
3.92	0.730	0.730	Nugent	2016AJ....152...63N	NEATM
4.06	0.140	0.140	Masiero	2012ApJ...759L...8M	NEATM
4.56	0.078	0.078	Masiero	2011ApJ...741...68M	NEATM