value	unc_up	unc_lo	author	ref	method
7.03	1.600	1.600	Nugent	2016AJ....152...63N	NEATM
7.14	0.170	0.170	Masiero	2012ApJ...759L...8M	NEATM
7.30	0.073	0.073	Masiero	2011ApJ...741...68M	NEATM