| 28 | |
| 29 | The system has a 39 megapixel digital camera, referred to as the "RCD", with the following characteristics: |
| 30 | * 7216x5412 resolution, 12bit [=~57MB raw] |
| 31 | * 60mm lenses (changeable), with 44.2 degree x 34 degree FOV |
| 32 | * pixel size 6.8microns (= ~15cm ground resolution at 1350m) |
| 33 | * 1/4000 exposure time, 2.2s per frame |
| 34 | * serial number 21 |
| 35 | * shutter is curtain style, taking 8ms to open and close, so there's a 4ms time difference between the top and bottom of the CCD stopping acquiring light |
| 36 | |
| 37 | Logfiles contain various handy info, notably the image event file contains GPS time, pos/att and picture id |
| 38 | |
| 39 | Calibration files are required and supplied by Leica (dark, gain and camera parameters). |
| 40 | |
| 41 | File name convention is: `''DDHHMMSSXXXXXXG''N.raw` |
| 42 | * DD = day of month |
| 43 | * HHMMSS = timestamp |
| 44 | * XXXXXX = incrementing picture id |
| 45 | * G = gain (1-4) |