value	unc_up	unc_lo	author	ref	method
7.50	2.380	2.380	Nugent	2016AJ....152...63N	NEATM
7.91	2.349	2.349	Masiero	2017AJ....154..168M	NEATM
8.43	0.078	0.078	Masiero	2011ApJ...741...68M	NEATM