value	unc_up	unc_lo	author	ref	method
4.96	1.290	1.290	Nugent	2016AJ....152...63N	NEATM
5.38	0.075	0.075	Masiero	2011ApJ...741...68M	NEATM
5.45	0.036	0.036	Masiero	2011ApJ...741...68M	NEATM