value	unc_up	unc_lo	author	ref	method
0.040	0.0100	0.0100	Nugent	2016AJ....152...63N	NEATM
0.051	0.0050	0.0050	Masiero	2011ApJ...741...68M	NEATM
0.055	0.0250	0.0470	Masiero	2021PSJ.....2..162M	NEATM