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  1. Data Management
  2. DM-38895

Amps with almost all pixels having a constant value can be produced by ISR.

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      In producing combined flats as input to the cp_pipe defect finding code for Run 5 BOT data, I saw a few examples where all of the pixels in some amps had the same value.  Looking at the individual ISR'd frames, I see those amps also have almost all pixels set to the same value across the amp.

      Here's a pipetask command that reproduces the problem:

      pipetask run \
           -b /repo/main \
           -p ${CP_PIPE_DIR}/pipelines/cpFlat.yaml#isr \
           -i u/jchiang/dark_0_13162_w_2023_16 \
           -o u/jchiang/flattend_amp_13162_w_2023_16_det031 \
           -d "instrument='LSSTCam' and detector=31 and exposure=3021121200240" \
           --config isr:doDefect=False --config isr:overscan.doParallelOverscan=True --config isr:overscan.fitType=MEDIAN_PER_ROW --config isr:doLinearize=False --config isr:doDark=False --config isr:doDefect=False
      

       

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            jchiang James Chiang added a comment - - edited

            Sure go ahead and reset the status of this ticket, though I'm wondering if it should be re-titled to describe the planned change.

            jchiang James Chiang added a comment - - edited Sure go ahead and reset the status of this ticket, though I'm wondering if it should be re-titled to describe the planned change.

            This should be clear to proceed now: the pipeline stubs exist for all cameras and all calib types.

            czw Christopher Waters added a comment - This should be clear to proceed now: the pipeline stubs exist for all cameras and all calib types.
            plazas Andrés Alejandro Plazas Malagón added a comment - New ticket: https://jira.lsstcorp.org/browse/DM-38986

            I think the last PR on this ticket can probably be declined as well (unless I missed something subtle).

            czw Christopher Waters added a comment - I think the last PR on this ticket can probably be declined as well (unless I missed something subtle).

            In the end, we'll close this ticket as is and do the required changes in DM-38986, after gathering input from everyone.

            plazas Andrés Alejandro Plazas Malagón added a comment - In the end, we'll close this ticket as is and do the required changes in DM-38986 , after gathering input from everyone.

            People

              plazas Andrés Alejandro Plazas Malagón
              jchiang James Chiang
              Christopher Waters
              Andrés Alejandro Plazas Malagón, Christopher Waters, James Chiang
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