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  1. Data Management
  2. DM-11090

Identify regression in HSC astrometric matching success rate between w_2017_17 and w_2017_25

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    • Type: Story
    • Status: Done
    • Resolution: Done
    • Fix Version/s: None
    • Component/s: None
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    • Story Points:
      6
    • Epic Link:
    • Sprint:
      DRP F17-2
    • Team:
      Data Release Production

      Description

      Hsin-Fang Chiang reports more failures in processing the HSC RC dataset with a recent version of the stack:

      Using the latest stack (w_2017_25) I'm reprocessing the RC dataset in DM-11020. I'm seeing more failures (81 ccds) in the single frame processing stage, compared to w_2017_17 (46 ccds).

      Out of the 81 failures:
      62 failed with: "Unable to match sources"
      4 failed with: "No objects passed our cuts for consideration as psf stars"
      4 failed with: "No sources remaining in match list after magnitude limit cuts"
      11 failed with: "PSF star selector found [123] candidates"

      I'm not sure if this is expected or not. Maybe somebody from the Science Pipeline would want to know? (edited)

      The difference seems to be those failed with "Unable to match sources". There were only 27 of those in w_2017_17. (All with the same RC dataset, 320 visits in total)

      We need to understand what went wrong here and fix it.

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              • Assignee:
                lauren Lauren MacArthur
                Reporter:
                jbosch Jim Bosch
                Reviewers:
                Paul Price
                Watchers:
                Hsin-Fang Chiang, Jim Bosch, Lauren MacArthur, Paul Price, Tim Morton
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