value	unc_up	unc_lo	author	ref	method
6.36	1.490	1.490	Masiero	2020PSJ.....1....5M	NEATM
6.47	1.620	1.620	Masiero	2020PSJ.....1....5M	NEATM
6.83	2.280	2.280	Nugent	2016AJ....152...63N	NEATM
7.36	3.220	3.220	Masiero	2012ApJ...759L...8M	NEATM