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DM-56879: record templateInputs and compute DiaSource template MJD - #481
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BrunoSanchez
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November 3, 2026 07:38
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I think it looks good.
I was able to follow the code, however a discussion could help me understand some of the details on the polygons, and on the template info stored in the diaSources metadata.
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| record : `lsst.afw.table.ExposureRecord` | ||
| Input record of a coadd, with the input's WCS, bounding box and | ||
| optional valid polygon. | ||
| coaddWcs : `lsst.afw.geom.SkyWcs` | ||
| WCS of the coadd. | ||
| scienceInCoadd : `lsst.images.Polygon` | ||
| ``scienceBox`` in coadd pixels. | ||
| coaddToScience : `lsst.images.Transform` | ||
| Transform from coadd pixels to science image pixels. | ||
| scienceBox : `lsst.images.Box` | ||
| Bounding box of the science image. |
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Maybe add a few words here to clarify that the "coaddWcs" and input wcs are different, as the coaddWcs and all related to coadd is defined in the skymap of choice.
It is just to clarify to the user that the transformation here needed is not only inputs to science and its inverse, but also to the "coadd" sky coordinates
Each input's overlap with the science image is found in coadd pixels, so no detector WCS is evaluated far outside its own image. The border of each coadd input's bbox is trimmed to account for the size of the warping kernel.
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I saw the new changes and they look good to me |
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