I did some testing last night. I unchecked the "Save Data in Unsigned Format" and took 1 1/2 hours of the Jewel Box
Unsurprisingly - no odd stars. Here is a 180 second sub in G after calibration. The effects of the full moon are pretty obvious.
At least I know how to avoid this now - thanks to everyone for their suggestions.
As to my flats - that is another story - or at least another post
Pete
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