value	unc_up	unc_lo	author	ref	method
4.50	1.038	1.038	Masiero	2017AJ....154..168M	NEATM
5.28	1.240	1.240	Masiero	2021PSJ.....2..162M	NEATM
6.35	2.240	2.240	Masiero	2021PSJ.....2..162M	NEATM
6.69	0.970	0.970	Masiero	2012ApJ...759L...8M	NEATM
7.08	1.790	1.790	Nugent	2016AJ....152...63N	NEATM
7.42	0.165	0.165	Masiero	2011ApJ...741...68M	NEATM