Thread: M8, M16, M20 and M83 - ST9 + RC
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  #25  
Old 17-05-2009, 07:21 PM
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Peter Ward
Galaxy hitchhiking guide

Peter Ward is offline 		 
Join Date: Dec 2007
Location: The Shire
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Alex,

Your subs are way too short for your sky background. That's what is causing the fixed pattern noise (herringbone like pattern) in the data. Try at least 10 minutes.
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