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colourYellow
titleIn progress
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Outcome

We will look into improving the model.

Mark says to continue including affected data in SRDP and do not flag the data. In comparison to the recent 3C147 model issue, we do not see ramps in amp vs freq solutions. Include a note similar to amp ramp QA note:

"The 3C286 Ka-band model used for pipeline processing and packaged with CASA does not represent the source in A-configuration very well, causing amplitude errors. A new, more accurate model will be released with CASA in the future."

"The current calibrator models for resolved flux density calibrators in A-configuration in CASA are created

with narrow band data. At the high frequencies of a broad band observation, this can mean that the calibrator

model does not represent the structure of the calibrator very well, leading to amplitude errors that reduce

the dynamic range of the calibrated data. This will be remedied in a future version of CASA and the pipeline."


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