value	unc_up	unc_lo	author	ref	method
0.048	0.0560	0.0560	Masiero	2012ApJ...759L...8M	NEATM
0.051	0.0170	0.0250	Masiero	2021PSJ.....2..162M	NEATM
0.072	0.0132	0.0132	Masiero	2011ApJ...741...68M	NEATM
0.100	0.0400	0.0400	Nugent	2016AJ....152...63N	NEATM