value	unc_up	unc_lo	author	ref	method
5.89	1.630	1.630	Nugent	2016AJ....152...63N	NEATM
6.69	1.595	1.595	Masiero	2017AJ....154..168M	NEATM
7.04	2.620	2.620	Masiero	2021PSJ.....2..162M	NEATM
7.10	0.070	0.070	Masiero	2011ApJ...741...68M	NEATM