value	unc_up	unc_lo	author	ref	method
4.62	1.380	1.380	Nugent	2016AJ....152...63N	NEATM
5.11	0.260	0.260	Masiero	2011ApJ...741...68M	NEATM
5.13	0.282	0.282	Masiero	2011ApJ...741...68M	NEATM