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  1. Data Management
  2. DM-21217

Add option to select image to convolve based on seeing

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    • Story
    • Status: Invalid
    • Resolution: Done
    • None
    • ip_diffim, pipe_tasks
    • None

    Description

      ImageDifferenceTask currently supports the option to convolve either the template or the science image, but that option is frozen in the config. For long ap_pipe runs, there may be many visits with a range of seeing both better and worse than the template. While the order may not matter using ZOGY, we are seeing deconvolution artifacts with the current Alard&Lupton image subtraction when the order is incorrect.

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            krzys Krzysztof Findeisen added a comment - - edited

            Two questions:

            • are you sure there isn't already an automatic selector? [resolved in group meeting]
            • do we have to worry about measurement error in the seeing? What happens if the science and template images have comparable seeing, so that there's a 50/50 chance that one or the other will be considered "better"?
            krzys Krzysztof Findeisen added a comment - - edited Two questions: are you sure there isn't already an automatic selector? [resolved in group meeting] do we have to worry about measurement error in the seeing? What happens if the science and template images have comparable seeing, so that there's a 50/50 chance that one or the other will be considered "better"?
            sullivan Ian Sullivan added a comment -

            This feature is supported with the new image differencing tasks.

            sullivan Ian Sullivan added a comment - This feature is supported with the new image differencing tasks.

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              sullivan Ian Sullivan
              sullivan Ian Sullivan
              Ian Sullivan
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