value	unc_up	unc_lo	author	ref	method
0.040	0.0200	0.0200	Nugent	2016AJ....152...63N	NEATM
0.043	0.0180	0.0310	Masiero	2021PSJ.....2..162M	NEATM
0.052	0.0050	0.0050	Masiero	2011ApJ...741...68M	NEATM