value	unc_up	unc_lo	author	ref	method
6.88	2.480	2.480	Nugent	2016AJ....152...63N	NEATM
7.19	0.138	0.138	Masiero	2011ApJ...741...68M	NEATM
7.79	0.190	0.190	Masiero	2012ApJ...759L...8M	NEATM
8.03	2.320	2.320	Nugent	2016AJ....152...63N	NEATM