value	unc_up	unc_lo	author	ref	method
5.49	1.040	1.040	Nugent	2016AJ....152...63N	NEATM
6.48	0.270	0.270	Masiero	2012ApJ...759L...8M	NEATM
6.51	0.070	0.070	Masiero	2014ApJ...791..121M	NEATM
7.10	0.053	0.053	Masiero	2011ApJ...741...68M	NEATM