Does anyone knows how MaximDL compute magerr .
I *think* it just some combination of 1/SNR (or one of the variations of 1/SNR) of the target and the comp. Probably taken in quadature.
If I really want to know my error I use another method. If I am measuring a star that isn't varying very rapidly, I will take the average and standard deviation(sd) of 3 to 5 images. The sd is then my error.
If I am taking the time series of a rapidly varying star like a cataclysmic variable, I will calculate k-c and take the running sd of k-c taken 3 images at a time.
Usually I find that these error calculations are reasonably close to MaxIm's errors with MaxIm understating the error a bit.
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