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  1. DRP 2-D Pipeline
  2. PIPE2D-1143

sky subtraction is bad for a certain fraction of fibers in the faint galaxy frames taken during Nov run

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    Details

    • Type: Task
    • Status: Done (View Workflow)
    • Priority: Major
    • Resolution: Done
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
    • Sprint:
      Gen3 transition

      Description

      Reducing the data for faint galaxies (visit=83244..83249) taken during the Nov run, I just noticed that the sky subtraction for some fibers is (still) significantly bad. Commands I ran are in this reduction_run08_galaxies_example.sh. Some examples of good and bad subtraction are shown below. Those are coadded pfsObjects but I see the same things in pfsMerged and in a single visit.

        Attachments

        1. bad_subtraction_example1.png
          158 kB
          Kiyoto Yabe
        2. fibers_with_large_residual_on_pfi.png
          42 kB
          Kiyoto Yabe
        3. good_subtraction_example1.png
          200 kB
          Kiyoto Yabe
        4. image (7).png
          235 kB
          price
        5. reduction_run08_galaxies_example.sh
          2 kB
          Kiyoto Yabe
        6. Xnip2023-01-20_17-15-59.jpg
          251 kB
          price

          Issue Links

          blocks

          Task - A task that needs to be done. PIPE2D-1140 Reduce data obtained in Nov run for the internal release to the collaboration

          • Normal - Normal priorities
          • Done
          is blocked by

          Story - Created by Jira Software - do not edit or delete. Issue type for a user story. DAMD-145 Add facility to hold history/metrics of spectra

          • Normal - Normal priorities
          • Done
          relates to

          Story - Created by Jira Software - do not edit or delete. Issue type for a user story. PIPE2D-1165 Engineering Data Release 1

          • Normal - Normal priorities
          • Done

          Task - A task that needs to be done. PIPE2D-1140 Reduce data obtained in Nov run for the internal release to the collaboration

          • Normal - Normal priorities
          • Done

            Activity

              People

              • Assignee:
                price price
                Reporter:
                kiyoto.yabe Kiyoto Yabe
                Reviewers:
                hassan
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                Dates

                • Created:
                  Updated:
                  Resolved: