value	unc_up	unc_lo	author	ref	method
0.059	0.0305	0.0305	Masiero	2017AJ....154..168M	NEATM
0.070	0.0500	0.0500	Nugent	2016AJ....152...63N	NEATM
0.196	0.1530	0.1530	Masiero	2012ApJ...759L...8M	NEATM