value	unc_up	unc_lo	author	ref	method
0.237	0.0290	0.0290	Masiero	2012ApJ...759L...8M	NEATM
0.250	0.1000	0.1000	Nugent	2016AJ....152...63N	NEATM
0.314	0.0898	0.0898	Masiero	2011ApJ...741...68M	NEATM