value unc_up unc_lo author ref method 4.25 0.135 0.135 Masiero 2011ApJ...741...68M NEATM 4.58 0.045 0.045 Masiero 2011ApJ...741...68M NEATM 6.25 1.900 1.900 Nugent 2016AJ....152...63N NEATM