value unc_up unc_lo author ref method 0.200 0.0330 0.0330 Masiero 2012ApJ...759L...8M NEATM 0.290 0.1100 0.1100 Nugent 2016AJ....152...63N NEATM 0.310 0.1300 0.1300 Nugent 2016AJ....152...63N NEATM