6 -  12 hour files: total    3 TRaP members.
/data/Petrap/2025/31P/202531P.WTPS31.PGTW.191500.AMSUM1.04191205.18.Z
/data/Petrap/2025/31P/202531P.WTPS31.PGTW.200300.AMSUM1.04192311.06.Z
/data/Petrap/2025/31P/202531P.WTPS31.PGTW.200300.GHEHR.04200200.06.Z
Grid information: nc,nr,clat,clon:      800     800  -12.35 -139.80
Total independent TRaPs used:   3
Total Ensemble TRaP members:   3