value	unc_up	unc_lo	author	ref	method
2.14	0.416	0.416	Masiero	2011ApJ...741...68M	NEATM
2.32	0.540	0.540	Nugent	2016AJ....152...63N	NEATM
2.33	0.647	0.647	Masiero	2017AJ....154..168M	NEATM