value	unc_up	unc_lo	author	ref	method
0.040	0.0200	0.0200	Nugent	2016AJ....152...63N	NEATM
0.043	0.0850	0.0850	Masiero	2012ApJ...759L...8M	NEATM
0.056	0.0230	0.0380	Masiero	2021PSJ.....2..162M	NEATM