value	unc_up	unc_lo	author	ref	method
0.247	0.0455	0.0455	Masiero	2011ApJ...741...68M	NEATM
0.310	0.1300	0.1300	Nugent	2016AJ....152...63N	NEATM
0.450	0.0590	0.0590	Masiero	2012ApJ...759L...8M	NEATM