value	unc_up	unc_lo	author	ref	method
3.82	0.860	0.860	Nugent	2016AJ....152...63N	NEATM
4.36	0.177	0.177	Masiero	2011ApJ...741...68M	NEATM
4.39	0.090	0.090	Masiero	2012ApJ...759L...8M	NEATM