value	unc_up	unc_lo	author	ref	method
4.20	1.386	1.386	Masiero	2017AJ....154..168M	NEATM
4.26	1.040	1.040	Masiero	2021PSJ.....2..162M	NEATM
4.70	1.150	1.150	Nugent	2016AJ....152...63N	NEATM
4.90	0.616	0.616	Masiero	2011ApJ...741...68M	NEATM