value	unc_up	unc_lo	author	ref	method
3.30	0.420	0.420	Masiero	2011ApJ...741...68M	NEATM
3.53	0.729	0.729	Masiero	2017AJ....154..168M	NEATM
3.83	0.930	0.930	Nugent	2016AJ....152...63N	NEATM