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  1. Data Management
  2. DM-2423

Weighting in photometric calibration is incorrect

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    Details

    • Type: Bug
    • Status: Done
    • Resolution: Done
    • Fix Version/s: None
    • Component/s: meas_photocal
    • Labels:
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      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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          Improvement - An improvement or enhancement to an existing feature or task. DM-2308 Improve hacks in PhotoCalTask for dealing with reference flux uncertainties

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              People

              Assignee:
              jbosch Jim Bosch
              Reporter:
              rhl Robert Lupton
              Reviewers:
              Russell Owen
              Watchers:
              Dominique Boutigny, Jim Bosch, Rachel Mandelbaum, Robert Lupton, Russell Owen, Simon Krughoff
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                Dates

                Created:
                Updated:
                Resolved:

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