18 -  24 hour files: total    4 TRaP members.
/data/Petrap/2025/ALVIN/2025ALVIN.WTPZ21.KNHC.310200.RCLIPER.05310200.18.Z
/data/Petrap/2025/ALVIN/2025ALVIN.WTPZ21.KNHC.310248.GHEHR.05310200.18.Z
/data/Petrap/2025/ALVIN/2025ALVIN.WTPZ21.KNHC.310248.RRH_AMSR.05302128.18.Z
/data/Petrap/2025/ALVIN/2025ALVIN.WTPZ21.KNHC.310248.RRH_GPM.05310114.18.Z
Grid information: nc,nr,clat,clon:      800     800   20.20  109.20
Total independent TRaPs used:   4
Total Ensemble TRaP members:   4