value	unc_up	unc_lo	author	ref	method
3.23	1.470	1.470	Masiero	2012ApJ...759L...8M	NEATM
3.38	0.830	0.830	Nugent	2016AJ....152...63N	NEATM
4.36	0.086	0.086	Masiero	2011ApJ...741...68M	NEATM