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  1. DRP 2-D Pipeline
  2. PIPE2D-979

2d sky subtraction creates patches of negative data

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    Details

    • Type: Bug
    • Status: Done (View Workflow)
    • Priority: Normal
    • Resolution: Done
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
    • Labels:
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      Description

      As reported by Kiyoto Yabe the 2d sky subtraction seems to create large patches of negative values. Wherever the algorithm seems to apply the subtraction, the result are large negative values. It seems likely that normalization has a bug somewhere. Might be connected with PIPE2D-972. See the result here

      The code to generate the images was

      reduceExposure.py /projects/HSC/PFS/Subaru --calib /projects/HSC/PFS/Subaru/CALIB-SuNSS --rerun hassans/PIPE2D-977 --id visit=46588 arm=r -c measurePsf.oversampleFactor=11 measurePsf.version=Aug0121_v1 measurePsf.targetSize=21 doWriteCalexp=True doSubtractSky2d=True doMeasurePsf=True isr.doFlat=False

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            • Assignee:
              price price
              Reporter:
              ncaplar ncaplar
              Reviewers:
              hassan
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                Updated:
                Resolved: