value	unc_up	unc_lo	author	ref	method
2.99	0.730	0.730	Nugent	2016AJ....152...63N	NEATM
4.22	0.293	0.293	Masiero	2011ApJ...741...68M	NEATM
4.36	0.230	0.230	Masiero	2012ApJ...759L...8M	NEATM