value	unc_up	unc_lo	author	ref	method
6.03	1.310	1.310	Masiero	2020PSJ.....1....5M	NEATM
6.05	1.390	1.390	Masiero	2021PSJ.....2..162M	NEATM
6.05	1.674	1.674	Masiero	2017AJ....154..168M	NEATM
6.58	0.122	0.122	Masiero	2011ApJ...741...68M	NEATM
6.66	1.490	1.490	Nugent	2016AJ....152...63N	NEATM