value	unc_up	unc_lo	author	ref	method
5.23	1.440	1.440	Masiero	2021PSJ.....2..162M	NEATM
5.77	1.780	1.780	Nugent	2016AJ....152...63N	NEATM
6.38	2.580	2.580	Masiero	2012ApJ...759L...8M	NEATM
6.82	0.118	0.118	Masiero	2011ApJ...741...68M	NEATM