value	unc_up	unc_lo	author	ref	method
0.045	0.0196	0.0196	Masiero	2017AJ....154..168M	NEATM
0.050	0.0400	0.0400	Nugent	2016AJ....152...63N	NEATM
0.067	0.0240	0.0380	Masiero	2021PSJ.....2..162M	NEATM