value	unc_up	unc_lo	author	ref	method
0.036	0.0680	0.0680	Masiero	2012ApJ...759L...8M	NEATM
0.043	0.0065	0.0065	Masiero	2011ApJ...741...68M	NEATM
0.050	0.0500	0.0500	Nugent	2016AJ....152...63N	NEATM