value unc_up unc_lo author ref method 13.68 3.580 3.580 Nugent 2016AJ....152...63N NEATM 13.76 0.120 0.120 Masiero 2011ApJ...741...68M NEATM 18.27 4.530 4.530 Nugent 2016AJ....152...63N NEATM 19.79 2.100 2.100 Tedesco 2002AJ....123.1056T STM 20.19 5.120 5.120 Masiero 2012ApJ...759L...8M NEATM