| Code | Category | Explanation |
|---|
| Accepted | Report | Data accepted (not all, but at least necessary fields are given) |
| Complete | Report | Data accepted (considered as complete and 'final') |
| Incomplete | Report | Data incomplete (waiting for full report => not considered in db) |
| Obsolete | Report | This observation has no meaning and should be deleted from db |
| UT1 | Timings | Start of Observation |
| UT2 | Timings | Time of Disappearance |
| UT3 | Timings | Time of Reappearance |
| UT4 | Timings | End of Observation |
| WGS84 | Station | Geodetic System (Datum) of geographic coordinates |