value	unc_up	unc_lo	author	ref	method
5.69	1.810	1.810	Masiero	2021PSJ.....2..162M	NEATM
5.87	1.460	1.460	Masiero	2020PSJ.....1....5M	NEATM
6.02	1.520	1.520	Nugent	2016AJ....152...63N	NEATM
6.38	0.290	0.290	Masiero	2012ApJ...759L...8M	NEATM