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  1. Data Management
  2. DM-1971

ISR should write a DistortedTanWcs to the assembled exposure

    Details

    • Type: Story
    • Status: Invalid
    • Resolution: Done
    • Fix Version/s: None
    • Component/s: ip_isr
    • Labels:
      None
    • Team:
      Alert Production

      Description

      The ISR task should write a DistortedTanWcs to the assembled exposure, instead of the pure TAN WCS that it starts with. (DistortedTanWcs is a plane TAN WCS plus a distortion model; the necessary distortion model can be directly read from the detector information in the camera geometry).

      Warning: DistortedTanWcs cannot presently be persisted (DM-1970 is a ticket to fix this). Hence it is risky to put a DistortedTanWcs into a WCS. If the task then attempts to persist the exposure with that WCS (very likely if it persists the snaps) that will fail. Thus I am very nervous about doing this before at least a simplified version of DM-1970 has been implemented (e.g. persisting the WCS as a TAN-SIP WCS). However, others have recommended doing it now so I am not listing DM-1970 as a blocker.

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            swinbank John Swinbank added a comment - Done on DM-10765 : https://github.com/lsst/ip_isr/commit/db76e87cc76b5c8866c7810fb6c5d7cef89bcc4e

              People

              • Assignee:
                Unassigned
                Reporter:
                rowen Russell Owen
                Watchers:
                John Swinbank, Russell Owen
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                  Updated:
                  Resolved:

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