value	unc_up	unc_lo	author	ref	method
7.09	2.060	2.060	Nugent	2016AJ....152...63N	NEATM
7.45	0.099	0.099	Masiero	2011ApJ...741...68M	NEATM
7.91	0.081	0.081	Masiero	2011ApJ...741...68M	NEATM