6 -  12 hour files: total    3 TRaP members.
/data/Petrap/2025/31P/202531P.WTPS31.PGTW.211500.AMSUM3.04211215.18.Z
/data/Petrap/2025/31P/202531P.WTXS31.PGTW.220300.AMSUM3.04220100.06.Z
/data/Petrap/2025/31P/202531P.WTXS31.PGTW.220300.GHEHR.04220200.06.Z
Grid information: nc,nr,clat,clon:      800     800   -9.85 -132.75
Total independent TRaPs used:   3
Total Ensemble TRaP members:   3