value	unc_up	unc_lo	author	ref	method
4.90	1.270	1.270	Nugent	2016AJ....152...63N	NEATM
5.62	0.290	0.290	Masiero	2012ApJ...759L...8M	NEATM
5.77	0.153	0.153	Masiero	2011ApJ...741...68M	NEATM