value	unc_up	unc_lo	author	ref	method
6.87	1.770	1.770	Nugent	2016AJ....152...63N	NEATM
7.07	1.930	1.930	Masiero	2021PSJ.....2..162M	NEATM
7.58	0.049	0.049	Masiero	2011ApJ...741...68M	NEATM
8.48	1.840	1.840	Masiero	2021PSJ.....2..162M	NEATM