value	unc_up	unc_lo	author	ref	method
0.170	0.1300	0.1300	Nugent	2016AJ....152...63N	NEATM
0.175	0.0240	0.0240	Masiero	2012ApJ...759L...8M	NEATM
0.234	0.0350	0.0350	Masiero	2012ApJ...759L...8M	NEATM