value	unc_up	unc_lo	author	ref	method
0.060	0.0500	0.0500	Nugent	2016AJ....152...63N	NEATM
0.065	0.0090	0.0090	Masiero	2012ApJ...759L...8M	NEATM
0.240	0.0400	0.0400	Masiero	2014ApJ...791..121M	NEATM
0.251	0.0331	0.0331	Masiero	2011ApJ...741...68M	NEATM