value	unc_up	unc_lo	author	ref	method
5.45	1.690	1.690	Masiero	2020PSJ.....1....5M	NEATM
5.92	1.820	1.820	Masiero	2021PSJ.....2..162M	NEATM
6.51	2.590	2.590	Masiero	2012ApJ...759L...8M	NEATM
6.59	2.110	2.110	Nugent	2016AJ....152...63N	NEATM