value	unc_up	unc_lo	author	ref	method
5.89	1.650	1.650	Nugent	2016AJ....152...63N	NEATM
6.42	1.820	1.820	Masiero	2021PSJ.....2..162M	NEATM
6.80	2.383	2.383	Masiero	2017AJ....154..168M	NEATM
7.36	0.079	0.079	Masiero	2011ApJ...741...68M	NEATM