| Each file is recorded as an entry in the filedb structure. This is written into a FITS file, which is opened and read and rewritten for every ground station contact. The database file for all level 0 data will be distributed as part of the software.
| Contents:
| version = A version number
| file_id = file name
| orbit_start, orbit_end = Orbit number (GDS) at start and end of the file
| start_time, end_time = data start and end times
| status_flag = set to -1 if the file has been discarded, and the packets are contained in another file, set to 0 if the file exists
| npackets = Number of packets
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