value	unc_up	unc_lo	author	ref	method
0.042	0.0316	0.0316	Masiero	2017AJ....154..168M	NEATM
0.047	0.0390	0.0390	Masiero	2020PSJ.....1....5M	NEATM
0.074	0.0080	0.0080	Masiero	2011ApJ...741...68M	NEATM