value	unc_up	unc_lo	author	ref	method
2.55	0.830	0.830	Masiero	2021PSJ.....2..162M	NEATM
2.90	1.280	1.280	Masiero	2012ApJ...759L...8M	NEATM
3.38	0.090	0.090	Masiero	2011ApJ...741...68M	NEATM
4.12	1.020	1.020	Nugent	2016AJ....152...63N	NEATM