value unc_up unc_lo author ref method 6.32 1.580 1.580 Masiero 2020PSJ.....1....5M NEATM 6.53 1.370 1.370 Masiero 2012ApJ...759L...8M NEATM 7.16 2.590 2.590 Masiero 2020PSJ.....1....5M NEATM 7.89 2.050 2.050 Nugent 2016AJ....152...63N NEATM