My dcs2230 was in night mode at my Window looking out and recording. Low noise on 24 gain. On the right corner of the video I can see a white streak and then a flash from behind the other building in the sky. It's barely under 1 second in the video, just a few frames. These things are fast.
The planes at least last longer.
For better video look here. .
http://www.wjla.com/blogs/weather/2014/09/sunday-night-mysterious-flash-of-light-in-the-sky-23016.html