Uploaded image for project: 'Data Management'
  1. Data Management
  2. DM-21202

Add option to correct for DCR in coadd PSF calculation

    Details

    • Templates:
    • Story Points:
      8
    • Epic Link:
    • Team:
      Alert Production

      Description

      As discussed in the comments on https://github.com/lsst/pipe_tasks/pull/309 , we don't have a correct PSF for DCR coadds. The standard coadd PSF that is calculated from the inputs includes the elongation due to DCR in each of the input PSFs, while the existing option to measure the PSF on the final DCR model does not properly handle masked regions or chip edge transitions where the PSF may change discontinuously.

       

      The correct approach is to use the known DCR to adjust each input PSF before calculating the coadd PSF.  

        Attachments

          Issue Links

            Activity

              People

              • Assignee:
                sullivan Ian Sullivan
                Reporter:
                sullivan Ian Sullivan
                Watchers:
                Ian Sullivan, Robert Lupton
              • Votes:
                0 Vote for this issue
                Watchers:
                2 Start watching this issue

                Dates

                • Created:
                  Updated:

                  Summary Panel