value	unc_up	unc_lo	author	ref	method
2.57	0.487	0.487	Masiero	2017AJ....154..168M	NEATM
3.39	1.040	1.040	Masiero	2021PSJ.....2..162M	NEATM
3.71	0.840	0.840	Nugent	2016AJ....152...63N	NEATM