value	unc_up	unc_lo	author	ref	method
5.36	1.230	1.230	Nugent	2016AJ....152...63N	NEATM
6.83	0.350	0.350	Masiero	2014ApJ...791..121M	NEATM
7.44	0.080	0.080	Masiero	2011ApJ...741...68M	NEATM