value unc_up unc_lo author ref method 5.29 0.070 0.070 Masiero 2012ApJ...759L...8M NEATM 5.75 1.810 1.810 Masiero 2021PSJ.....2..162M NEATM 6.02 1.480 1.480 Masiero 2021PSJ.....2..162M NEATM