value	unc_up	unc_lo	author	ref	method
6.21	2.130	2.130	Masiero	2020PSJ.....1....5M	NEATM
6.76	0.063	0.063	Masiero	2011ApJ...741...68M	NEATM
6.92	2.351	2.351	Masiero	2017AJ....154..168M	NEATM
6.98	2.330	2.330	Masiero	2012ApJ...759L...8M	NEATM