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  1. Data Management
  2. DM-18014

Work out math for adding reference stars to fgcmcal

    Details

    • Type: Story
    • Status: Done
    • Resolution: Done
    • Fix Version/s: None
    • Component/s: None
    • Labels:
      None
    • Story Points:
      2
    • Epic Link:
    • Sprint:
      DRP S19-3
    • Team:
      Data Release Production

      Description

      The fgcm fitter needs to be modified to take into account reference stars.  This ticket summarizes the work on the math to compute the updated chi2 and derivative of the chi2.

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            erykoff Eli Rykoff added a comment -

            See the attached pdf for a description of how the chi2 and derivative of the chi2 are computed in the presence of a subset of stars that have calibrated reference magnitudes.

            Show
            erykoff Eli Rykoff added a comment - See the attached pdf for a description of how the chi2 and derivative of the chi2 are computed in the presence of a subset of stars that have calibrated reference magnitudes.
            Hide
            erykoff Eli Rykoff added a comment -

            Turns out math was incorrect. Fixed version attached as fgcm_math3.pdf

            Show
            erykoff Eli Rykoff added a comment - Turns out math was incorrect. Fixed version attached as fgcm_math3.pdf

              People

              • Assignee:
                erykoff Eli Rykoff
                Reporter:
                erykoff Eli Rykoff
                Watchers:
                Eli Rykoff
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                • Created:
                  Updated:
                  Resolved:

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