
CASSIOPE SPACECRAFT (Swarm-E)
PROCESSED DATA HANDBOOK
GAP Lv1 Data File
GAP level 1 data files are generated for each GAP turn-on session, and for each receiver that was operating. They contain the raw, binary NovAtel receiver GPS message packets, as defined in reference R2, from the constituent GAP receivers (GPS-0 through GPS-4).
The file names are GAP_YYYYMMDD_HHMMSS_hhmmss_RCVR_N_vX-Z.lv1 where:
| YYYY | year |
| MM | month |
| DD | day |
| HH | start hour |
| MM | start minute |
| SS | start second |
| hh | end hour |
| mm | end minute |
| ss | end second |
| N | GAP Receiver number |
| X | version number |
| Z | minor revision number |
Gap receivers are located on the spacecraft as follows:

