value	unc_up	unc_lo	author	ref	method
17.26	5.781	5.781	Masiero	2017AJ....154..168M	NEATM
17.84	6.820	6.820	Nugent	2016AJ....152...63N	NEATM
20.74	10.460	10.460	Masiero	2012ApJ...759L...8M	NEATM