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  1. Data Management
  2. DM-10738

Increasing radius on sky causes matching to fail.

    Details

    • Type: Bug
    • Status: To Do
    • Resolution: Unresolved
    • Fix Version/s: None
    • Component/s: meas_astrom
    • Labels:
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      Description

      Before this commit there was a bug in the reference star selector, which meant it didn't actually retrieve stars over the area specified.

      Now that is fixed, having a large value for config.calibrate.astrometry.matcher.maxOffsetPix can cause the matcher to fail to match in situations in which it succeeds when a smaller value is used.

      Please note that the commit referenced above is not causing this problem, but is fixing a bug which then allows the fragility of the underlying matching algorithm to be seen.

      This is thought to be a general problem; I have seen this on obs_ctio0m9 data, and Chris Morrison has seen this on DECam data.

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              • Assignee:
                Unassigned
                Reporter:
                mfisherlevine Merlin Fisher-Levine
                Watchers:
                Chris Morrison, Merlin Fisher-Levine, Robert Lupton, Simon Krughoff
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                Dates

                • Created:
                  Updated:

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