value unc_up unc_lo author ref method 1.05 0.024 0.024 Ryan&Woodward 2010AJ....140..933R IRAS-STM 1.80 0.100 0.100 Tedesco 2002AJ....123.1056T STM 5.73 0.387 0.387 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM