(meteorobs) Probable cosmic ray and not a meteor

Chris Peterson clp at alumni.caltech.edu
Sun Nov 20 11:05:17 EST 2011


It would be more accurate to say there was a single cosmic ray, and at 
least three areas of the sensor that were synchronously exposed to 
secondary particles when that cosmic ray struck something outside the 
sensor itself.

Whenever you see synchronous flashes on a CCD there is good reason to 
suspect a cosmic ray (or high energy particle from the Earth) was involved.

The trace near the Moon is too long to appear on a single frame if it 
were meteoric in origin, and that doesn't explain the synchronous 
flashes elsewhere in the frame.

Chris

*******************************
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com

On 11/20/2011 6:49 AM, Jean-L. RAULT wrote:
> Dear Thomas
>
> What is (are) your argument(s) in favor of a cosmic ray ?
> Considering the duration of the visible trace and the apparent size of
> the Moon (0.5 degree), it could also be compatible with a faint meteor
> trace.
>
> Jean-Louis



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