value	unc_up	unc_lo	author	ref	method
0.038	0.0110	0.0110	Masiero	2012ApJ...759L...8M	NEATM
0.040	0.0300	0.0300	Nugent	2016AJ....152...63N	NEATM
0.061	0.0115	0.0115	Masiero	2011ApJ...741...68M	NEATM