value	unc_up	unc_lo	author	ref	method
2.93	0.940	0.940	Nugent	2016AJ....152...63N	NEATM
3.36	0.120	0.120	Masiero	2012ApJ...759L...8M	NEATM
3.53	0.050	0.050	Masiero	2014ApJ...791..121M	NEATM
3.70	0.043	0.043	Masiero	2011ApJ...741...68M	NEATM