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  1. Data Management
  2. DM-12539

Fix PSFEx in good seeing

    Details

    • Type: Story
    • Status: Done
    • Resolution: Done
    • Fix Version/s: None
    • Component/s: None
    • Labels:
    • Templates:
    • Story Points:
      4
    • Team:
      Data Release Production

      Description

      From the recent HSC data we know that the performance of the PSF modeling code, PSFEx, is poor when the seeing is < ~0.45". Robert Lupton found that the single pixel basis functions of the PSF model were being Lanczos interpolated. He updated the code to use the overlap of model basis with the original pixels. This ticket implements his change.

        Attachments

        1. data.png
          70 kB
          Bob Armstrong
        2. new_sims.png
          69 kB
          Bob Armstrong
        3. old_sims.png
          50 kB
          Bob Armstrong
        4. vvds_rho1_1am.png
          68 kB
          Bob Armstrong
        5. vvds_rho1.png
          57 kB
          Bob Armstrong
        6. vvds_size_res_vs_seeing.png
          65 kB
          Bob Armstrong

          Activity

            People

            • Assignee:
              rearmstr Bob Armstrong
              Reporter:
              rearmstr Bob Armstrong
              Reviewers:
              Paul Price
              Watchers:
              Bob Armstrong, Paul Price, Robert Lupton
            • Votes:
              0 Vote for this issue
              Watchers:
              3 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved:

                Summary Panel