That's a large chip spec document with lots of useful information, but of course it's not very revealing about issues such as radiation tolerance (not that you'd expect it to - I doubt they get much call for rad-hard webcams…)

Using a CMOS device gives you an advantage over CCDs, in that CMOS devices are typically more robust to the radiation environment (*more* robust, but not truly rad-hard). Their disadvantage is poorer noise characteristics which becomes critical for low light situations, but I don't believe that's an issue for you if you're mainly interested in imagery of the daylit hemisphere - you'll have plenty of signal and the noise levels should be insignificant. I suspect you'll also be fine for night time hemisphere images of well populated areas (i.e. images of light pollution).

Based on a very brief glance at this info, I think you should be ok with this sensor. However, I'm not an expert on electronics, and before committing the device to flight, it's important that we get someone like Duncan Ross or Chris Bicknell to inspect the board. It may be necessary to redesign or modify the layout, and/or replace certain components with more robust units.

One other thing, which ties in with other programmes we're involved with. Depending on the orbital inclination, it may be possible to observe auroral emissions with your camera. It would be interesting to evaluate the likely coverage and time / spatial resolution that might be possible with the camera during the mission.

Something else to think about.



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