12 - 18 hour files: total 4 TRaP members. /data/Petrap/2017/EIGHTEEN/2017EIGHTEEN.WTNT23.KNHC.280200.RCLIPER.10280200.12.Z /data/Petrap/2017/EIGHTEEN/2017EIGHTEEN.WTNT23.KNHC.280240.AMSUM2.10280232.12.Z /data/Petrap/2017/EIGHTEEN/2017EIGHTEEN.WTNT23.KNHC.280240.AMSUNN.10280043.12.Z /data/Petrap/2017/EIGHTEEN/2017EIGHTEEN.WTNT23.KNHC.280240.SSMISB.10280008.12.Z Grid information: nc,nr,clat,clon: 800 800 20.35 82.75 Total independent TRaPs used: 4 Total Ensemble TRaP members: 4