value	unc_up	unc_lo	author	ref	method
0.200	0.0175	0.0175	Masiero	2011ApJ...741...68M	NEATM
0.207	0.0250	0.0250	Masiero	2012ApJ...759L...8M	NEATM
0.210	0.0900	0.0900	Nugent	2016AJ....152...63N	NEATM
0.220	0.0200	0.0200	Masiero	2014ApJ...791..121M	NEATM