value	unc_up	unc_lo	author	ref	method
5.64	1.450	1.450	Masiero	2020PSJ.....1....5M	NEATM
6.09	1.600	1.600	Masiero	2021PSJ.....2..162M	NEATM
6.11	1.290	1.290	Masiero	2012ApJ...759L...8M	NEATM
6.31	1.490	1.490	Nugent	2016AJ....152...63N	NEATM