value	unc_up	unc_lo	author	ref	method
1.83	0.911	0.911	Masiero	2017AJ....154..168M	NEATM
1.92	0.030	0.030	Nugent	2016AJ....152...63N	NEATM
2.36	0.125	0.125	Mainzer	2011ApJ...743..156M	NEATM