value	unc_up	unc_lo	author	ref	method
18.32	0.110	0.110	Masiero	2014ApJ...791..121M	NEATM
18.99	0.097	0.097	Masiero	2011ApJ...741...68M	NEATM
19.40	6.280	6.280	Nugent	2016AJ....152...63N	NEATM