value	unc_up	unc_lo	author	ref	method
4.84	0.160	0.160	Masiero	2011ApJ...741...68M	NEATM
5.96	1.670	1.670	Nugent	2016AJ....152...63N	NEATM
6.22	1.740	1.740	Masiero	2021PSJ.....2..162M	NEATM