value	unc_up	unc_lo	author	ref	method
6.37	1.270	1.270	Nugent	2016AJ....152...63N	NEATM
7.23	2.110	2.110	Masiero	2021PSJ.....2..162M	NEATM
9.10	0.276	0.276	Masiero	2011ApJ...741...68M	NEATM