value	unc_up	unc_lo	author	ref	method
0.220	0.1300	0.1300	Nugent	2016AJ....152...63N	NEATM
0.252	0.0531	0.0531	Masiero	2011ApJ...741...68M	NEATM
0.274	0.0450	0.0450	Masiero	2011ApJ...741...68M	NEATM
0.280	0.0500	0.0500	Masiero	2014ApJ...791..121M	NEATM