value	unc_up	unc_lo	author	ref	method
4.79	1.330	1.330	Masiero	2021PSJ.....2..162M	NEATM
5.77	1.750	1.750	Nugent	2016AJ....152...63N	NEATM
6.79	2.740	2.740	Masiero	2012ApJ...759L...8M	NEATM