12 -  18 hour files: total    3 TRaP members.
/data/Petrap/2025/31P/202531P.WTPS31.PGTW.200300.AMSUM1.04192311.18.Z
/data/Petrap/2025/31P/202531P.WTPS31.PGTW.200900.GHEHR.04200800.12.Z
/data/Petrap/2025/31P/202531P.WTPS31.PGTW.200900.N20_RAIN.04200346.12.Z
Grid information: nc,nr,clat,clon:      800     800  -12.40 -139.40
Total independent TRaPs used:   3
Total Ensemble TRaP members:   3