value	unc_up	unc_lo	author	ref	method
0.040	0.0400	0.0400	Nugent	2016AJ....152...63N	NEATM
0.053	0.0465	0.0465	Masiero	2011ApJ...741...68M	NEATM
0.059	0.0200	0.0300	Masiero	2021PSJ.....2..162M	NEATM