value	unc_up	unc_lo	author	ref	method
6.73	1.820	1.820	Masiero	2021PSJ.....2..162M	NEATM
7.06	1.601	1.601	Masiero	2017AJ....154..168M	NEATM
7.39	0.288	0.288	Masiero	2011ApJ...741...68M	NEATM
7.50	2.280	2.280	Nugent	2016AJ....152...63N	NEATM