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  1. Data Management
  2. DM-15634

Fix DcrCoadd variance plane bug

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      The variance planes of DcrCoadds have unusual-looking double lobed features near most bright sources. This ticket is to investigate the variance planes to determine the cause of the feature, and fix it if it is a bug. Additionally, investigate the impact of the variance plane on source measurement.

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            sullivan Ian Sullivan added a comment -

            After investigation, the variance plane develops this double-lobed feature in assembleCoadd, without ever running dcrAssembleCoadd. It also only appears in the simulated data I have been using for testing, and does not appear when coadding DECam data. The issues with source measurement have been resolved in DM-15635, and do not appear to have been affected by this.

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            sullivan Ian Sullivan added a comment - After investigation, the variance plane develops this double-lobed feature in assembleCoadd, without ever running dcrAssembleCoadd. It also only appears in the simulated data I have been using for testing, and does not appear when coadding DECam data. The issues with source measurement have been resolved in DM-15635 , and do not appear to have been affected by this.

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              • Assignee:
                sullivan Ian Sullivan
                Reporter:
                sullivan Ian Sullivan
                Watchers:
                Ian Sullivan, John Swinbank
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