value	unc_up	unc_lo	author	ref	method
0.246	0.0390	0.0390	Masiero	2012ApJ...759L...8M	NEATM
0.310	0.1700	0.1700	Nugent	2016AJ....152...63N	NEATM
0.320	0.0395	0.0395	Masiero	2011ApJ...741...68M	NEATM