value	unc_up	unc_lo	author	ref	method
4.89	0.220	0.220	Masiero	2012ApJ...759L...8M	NEATM
5.02	1.050	1.050	Nugent	2016AJ....152...63N	NEATM
5.10	0.079	0.079	Masiero	2011ApJ...741...68M	NEATM
5.13	0.110	0.110	Masiero	2012ApJ...759L...8M	NEATM