value	unc_up	unc_lo	author	ref	method
3.91	0.920	0.920	Nugent	2016AJ....152...63N	NEATM
4.18	0.254	0.254	Masiero	2011ApJ...741...68M	NEATM
4.25	0.069	0.069	Masiero	2011ApJ...741...68M	NEATM