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I know we have discussed this at some great length previously, but I still feel the major "issue" with AP images is the "unwanted signal" rather than just the SNR calculation....
( Coming from spectroscopic observations, where the final SNR in the recorded spectrum is critical. The aim is to achieve at least a SNR =>40.
We can't (for scientific reasons) manipulate, correct or play around with the with spectral images other than the standard flats/ darks and sky background (pollution removal))
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