12 -  18 hour files: total    4 TRaP members.
/data/Petrap/2025/31P/202531P.WTPS31.PGTW.210900.GHEHR.04210800.12.Z
/data/Petrap/2025/31P/202531P.WTPS31.PGTW.210900.RAIN.04210442.12.Z
/data/Petrap/2025/31P/202531P.WTPS31.PGTW.210900.RRH_AMSR.04210441.12.Z
/data/Petrap/2025/31P/202531P.WTPS31.PGTW.210900.RRH_GPM.04210804.12.Z
Grid information: nc,nr,clat,clon:      800     800  -11.45 -136.05
Total independent TRaPs used:   4
Total Ensemble TRaP members:   4