value	unc_up	unc_lo	author	ref	method
0.287	0.0380	0.0380	Masiero	2012ApJ...759L...8M	NEATM
0.310	0.1100	0.1100	Nugent	2016AJ....152...63N	NEATM
0.320	0.0510	0.0510	Masiero	2011ApJ...741...68M	NEATM
0.350	0.0900	0.0900	Masiero	2014ApJ...791..121M	NEATM