value	unc_up	unc_lo	author	ref	method
0.038	0.0180	0.0180	Masiero	2012ApJ...759L...8M	NEATM
0.040	0.0300	0.0300	Nugent	2016AJ....152...63N	NEATM
0.045	0.0200	0.0340	Masiero	2021PSJ.....2..162M	NEATM
0.093	0.0276	0.0276	Masiero	2011ApJ...741...68M	NEATM