value	unc_up	unc_lo	author	ref	method
4.93	1.320	1.320	Nugent	2016AJ....152...63N	NEATM
6.71	1.160	1.160	Masiero	2012ApJ...759L...8M	NEATM
6.89	0.345	0.345	Masiero	2011ApJ...741...68M	NEATM