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  1. Data Management
  2. DM-2423

Weighting in photometric calibration is incorrect

    Details

    • Type: Bug
    • Status: Done
    • Resolution: Done
    • Fix Version/s: None
    • Component/s: meas_photocal
    • Labels:
      None
    • Templates:
    • Story Points:
      1
    • Sprint:
      Science Pipelines DM-S15-5, Science Pipelines DM-S15-6
    • Team:
      Data Release Production

      Description

      Dominique points out that the zero point calibration uses errors not inverse errors to calculate the zero point. git annotate reveals:

      24c9149f python/lsst/meas/photocal/PhotoCal.py (Robert Lupton the Good 2010-12-13 05:03:12 +0000 353) return np.average(dmag, weights=dmagErr), np.std(dmag, ddof=1), len(dmag)

      Please fix this. At the same time, we should add a config parameter to soften the errors.

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                • Assignee:
                  jbosch Jim Bosch
                  Reporter:
                  rhl Robert Lupton
                  Reviewers:
                  Russell Owen
                  Watchers:
                  Dominique Boutigny, Jim Bosch, rmandelb, Robert Lupton, Russell Owen, Simon Krughoff
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                  • Created:
                    Updated:
                    Resolved:

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