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  1. Data Management
  2. DM-30651

Investigate amp background level offsets in DECam postISRCCDs

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    Details

    • Story Points:
      2
    • Sprint:
      AP S22-1 (December)
    • Team:
      Alert Production
    • Urgent?:
      No

      Description

      If you scroll through here, the problem is immediately apparent

      https://lsst.ncsa.illinois.edu/~lskelvin/hits2014/

      Hat-tip to Lee Kelvin for noticing this problem and plotting the images. This feels very familiar to when ISR order of operations was inconsistent regarding when assembleCcd happens, but I don't remember the resolution.

      Possibly relevant and/or wrong: https://community.lsst.org/t/a-change-to-the-order-of-operations-for-isr/3060 

        Attachments

        1. merian_bias_01.png
          merian_bias_01.png
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        2. merian_bias_35.png
          merian_bias_35.png
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        3. merian_bias_45.png
          merian_bias_45.png
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        4. merian_flat_01.png
          merian_flat_01.png
          2.97 MB
        5. merian_flat_05.png
          merian_flat_05.png
          2.60 MB
        6. merian_flat_25.png
          merian_flat_25.png
          3.07 MB
        7. merian_flat_35.png
          merian_flat_35.png
          4.36 MB
        8. merian_flat_45.png
          merian_flat_45.png
          2.66 MB
        9. merian_flat_55.png
          merian_flat_55.png
          3.99 MB

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              Assignee:
              kherner Kenneth Herner
              Reporter:
              mrawls Meredith Rawls
              Watchers:
              Christopher Waters, Dino Bektesevic, Eric Bellm, Ian Sullivan, Lee Kelvin, Meredith Rawls
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              0 Vote for this issue
              Watchers:
              6 Start watching this issue

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                Updated:

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