value unc_up unc_lo author ref method 3.30 0.650 0.650 Nugent 2016AJ....152...63N NEATM 3.35 0.840 0.840 Nugent 2016AJ....152...63N NEATM 4.11 1.192 1.192 Masiero 2017AJ....154..168M NEATM 4.81 0.041 0.041 Masiero 2011ApJ...741...68M NEATM