Name Template: PUB/MISSION/level0/bkgHrf/YYYY.DDD.HH/bkgHrf_FFFF.YYYY.DDD.HH.MM.UUUU_rnx.Z
| DDD | Day of year |
| FFFF | Fiducial site ID |
| HH | Hour |
| MISSION | Mission ID (eight characters or less--champ, cosmicrt, sacc, sacctst, etc) |
| MM | Minute |
| PUB | Base directory for the pub hierarchy |
| UUUU | Duration of file in minutes |
| YYYY | Year |
IGS high rate (30 seconds) ground station GPS data. Data retrieved from BKG Germany. These are currently 1 hour files.
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