value	unc_up	unc_lo	author	ref	method
0.278	0.0320	0.0320	Masiero	2012ApJ...759L...8M	NEATM
0.310	0.0900	0.0900	Nugent	2016AJ....152...63N	NEATM
0.401	0.0695	0.0695	Masiero	2011ApJ...741...68M	NEATM