Name Template: PUB/MISSION/level0/bkgHrf/YYYY.DDD.HH/bkgHrf_FFFF.YYYY.DDD.HH.MM.UUUU_rnx.Z
DDDDay of year
FFFFFiducial site ID
HHHour
MISSIONMission ID (eight characters or less--champ, cosmicrt, sacc, sacctst, etc)
MMMinute
PUBBase directory for the pub hierarchy
UUUUDuration of file in minutes
YYYYYear


IGS high rate (30 seconds) ground station GPS data. Data retrieved from BKG Germany. These are currently 1 hour files.