Uploaded image for project: 'Data Management'
  1. Data Management
  2. DM-33645

Add new post-processing psf estimation task

    XMLWordPrintable

    Details

    • Type: Story
    • Status: Done
    • Resolution: Done
    • Fix Version/s: None
    • Component/s: pipe_tasks
    • Labels:
      None

      Description

      Following DM-33279, we can write a task that re-estimates the PSF model using uniquely/consistently reserved stars.

      Discussion with Jim Bosch has led to the following plan:

      • This will be run after fgcmcal/jointcal (but at the moment it will not use these outputs as inputs)
      • This will be run before skycorr
      • This is run per-ccd at the moment.
        The inputs will be:
      • calexp (to measure the psf)
      • src catalog which a subset will be input to psf estimator task
      • tract-by-tract isolated stars
        In the task it will:
      • Read src, apply a schema mapper to cut down to relevant columns.
      • Run psf estimator (excluding reserved stars)
      • On the psf stars (+ reserve stars) run each algorithm that requires an aperture correction
      • Compute aperture correction for each algorithm
        The outputs will be:
      • The psf model (in its own file)
      • The apcorr model (in its own file)
      • The psf catalog (source catalog with measurements + flags including psf_used and psf_reserved).

      The coadd make warp code will have to be updated to know to use these psfs, aperture corrections, and psf catalog (for flags).

        Attachments

          Activity

          Show
          erykoff Eli Rykoff added a comment - Thanks, Jim! PRs are https://github.com/lsst/pipe_tasks/pull/642 and https://github.com/lsst/drp_pipe/pull/9
          Hide
          jbosch Jim Bosch added a comment -

          Looks good!  I didn't see anything that looked definitely problematic, but I did leave some PR comments that might involve medium-size changes (but also might just involve explaining why things are as they are).

          Show
          jbosch Jim Bosch added a comment - Looks good!  I didn't see anything that looked definitely problematic, but I did leave some PR comments that might involve medium-size changes (but also might just involve explaining why things are as they are).

            People

            Assignee:
            erykoff Eli Rykoff
            Reporter:
            erykoff Eli Rykoff
            Reviewers:
            Jim Bosch
            Watchers:
            Eli Rykoff, Jim Bosch
            Votes:
            0 Vote for this issue
            Watchers:
            2 Start watching this issue

              Dates

              Created:
              Updated:
              Resolved:

                Jenkins

                No builds found.