18 -  24 hour files: total    2 TRaP members.
/data/Petrap/2025/31P/202531P.WTPS31.PGTW.211500.AMSUM3.04211215.18.Z
/data/Petrap/2025/31P/202531P.WTPS31.PGTW.211500.GHEHR.04211400.18.Z
Grid information: nc,nr,clat,clon:      800     800  -10.90 -135.05
Total independent TRaPs used:   2
Total Ensemble TRaP members:   2