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Astropy affiliated package for reducing optical/IR CCD data

Results 87 ccdproc issues
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The ccdprc.combine function does not preserve the exact format of the input .fits files used for bias/flat file combination - the output file has a slightly different format.

The docstring for ``ImageFileCollection.hdus`` mentions that ``HDUList`` objects are returned, but I think this should be ``PrimaryHDU`` or ``ImageHDU`` depending on the ``ext_index``.

enhancement
ImageFileCollection

Unfixable header keys are currently populating the summary_dict with their genuine values and also missing value place holders, resulting in lists of values that are too long, breaking the ImageFileCollection...

Our observatory writes `.FIT` files, and there appears to be no way at present to read these with an `ImageFileCollection`. -----------------------------------------

As reported by @tapio-not: I encountered a new issue with the astropy/ccdproc, specifically `subtract_overscan`. The "problem" is that the data I have has occasional bad first line with values of...

enhancement
ccdproc

Though an example of working with MEF files was added to the documentation in #694, we should make it easier to work with these files given the growing number of...

enhancement
CCDData
ccdproc
package-intermediate
effort-medium

The wcs_project function in ccdproc (v2.0) currently only supports reproject_interp for reprojection. From a quick look at the sources it would seem that to use reproject_exact all I need to...

enhancement

This is taken from Astropy project performance survey. Is this is not the correct repo for this issue, please advise. I have not tried this in recent astropy versions, but...

combiner
package-expert
effort-high
performance

I don't know what the underlying performance issue is, but wow it is slow (clipping a stack of 25 4k x 4k images takes minutes).

enhancement
combiner

I was trying to use `Combiner` recently, and I found it a bit awkward to use because a single combiner class has all the methods. So I want to through...

question
combiner