value	unc_up	unc_lo	author	ref	method
3.75	0.920	0.920	Nugent	2016AJ....152...63N	NEATM
3.81	1.190	1.190	Masiero	2012ApJ...759L...8M	NEATM
4.49	0.063	0.063	Masiero	2011ApJ...741...68M	NEATM