jemorrison
commented
7 years ago Additional features cube_build needs:
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[x] Create a cube build default parameter reference files that contain the default information necessary to build IFUcube for each band. Add these files to CRDS and read them in cube_build. A separate reference file is needed for MIRI and NIRSPEC. This was added with PR #876
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[x] For MIRI create a resolution reference files that holds information on the psf and lsf for each MIRI band. Add this reference file to CRDS and read this file in cube_build. This was added with PR #876
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[x] The default IFUCubes created from an association are per band. If an association or datamodel contains several bands (which will always be true for MIRI data) then in cube_build loop over each band and create a IFUcube for that band. However, keep input options in cube_build to override this and create IFUCube comprised of several bands. This was add with PR #1239
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[x] Create 'single' IFU cubes to support skymatching and outlier detection. These types of IFU cubes are single exposure, single band cubes mapped to a common output cube. The WCS of this common output is built from several dithered files of the same band. This was added with PR #1039, #990, #957
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[x] Add the ability to "blot" an IFUcube image back to the detector space to support outlier detection. First a set of "single" IFU cubes are built from a common WCS . Each "single" IFU cube is created from a single exposure, single band. The outlier detection step takes the set of single IFUcube and creates a median image (possibility also sigma clipped). This median image and the original images (which are the output from calspec2) are the input to 'blot_cube.py'. Each original image is "blotted" (mapped from the common IFU cube space to the detector space). For MIRI the blotting is done 1 channel at a time and it is left to the outlier rejection tool to stick the two blotted channels together on the detector. This was added in PR #1085
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[x] After sky match has been run the information about the background sky is written to the header. The cube_build code needs to read this information and apply a correction to the data. This was added in PR #1239
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[ ] Update all the documentation
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[x] Add the units of the SCI and ERR extensions of the IFUCube in bunit_data and bunit_err
hbushouse
All remaining aspects of the cube_build step necessary for processing NIRSpec IFU and MIRI MRS data must be completed. This includes the application to single exposures in the calwebb_spec2 pipeline and to multiple exposures in the calwebb_spec3 pipeline.
This is a carryover of Trac 360: https://aeon.stsci.edu/ssb/trac/jwst/ticket/360
Issues for build 7.2 were pulled out and put into issue #1350