value	unc_up	unc_lo	author	ref	method
0.040	0.0400	0.0400	Nugent	2016AJ....152...63N	NEATM
0.044	0.0060	0.0060	Masiero	2012ApJ...759L...8M	NEATM
0.044	0.0106	0.0106	Masiero	2011ApJ...741...68M	NEATM
0.045	0.0240	0.0530	Masiero	2021PSJ.....2..162M	NEATM