value	unc_up	unc_lo	author	ref	method
7.49	1.910	1.910	Nugent	2016AJ....152...63N	NEATM
8.13	0.200	0.200	Masiero	2014ApJ...791..121M	NEATM
8.27	0.300	0.300	Masiero	2012ApJ...759L...8M	NEATM
8.50	0.043	0.043	Masiero	2011ApJ...741...68M	NEATM