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  1. Data Management
  2. DM-12310

Figure out why most HSC datasets start with photometry chi2==NaN

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    • Story Points:
      4
    • Epic Link:
    • Sprint:
      Alert Production F17 - 10, Alert Production F17 - 11
    • Team:
      Alert Production

      Description

      Nearly all many-visit HSC datasets that I've tried to process fail to fit photometry because the chi2 starts out as NaN, resulting in all stars being rejected as outliers and (after a long time) Eigen blowing up. We can't proceed with the photometric part of the meas_mosaic comparison until I can produce a fit.

      Some steps to try:

      1. make jointcal fail immediately if chi2 is NaN (write a testcase for this)
      2. fit the SimplePhotometryModel instead, to see if that doesn't produce NaN
      3. print various input values to look for NaNs
      4. Is it worth writing the astrometry output before starting the photometry fit, so we at least have it in case of failure?

        Attachments

          Issue Links

          blocks

          Story - Created by Jira Software - do not edit or delete. Issue type for a user story. DM-11785 Run jointcal on acceptance data

          • Done
          is blocked by

          Story - Created by Jira Software - do not edit or delete. Issue type for a user story. DM-11931 Fix jointcal exit status and doRaise handling

          • Done
          relates to

          Story - Created by Jira Software - do not edit or delete. Issue type for a user story. DM-12384 exit/raise when data is less than parameters

          • Done

          Story - Created by Jira Software - do not edit or delete. Issue type for a user story. DM-12473 Add getParallacticAngle() to visitInfo

          • Done

          Story - Created by Jira Software - do not edit or delete. Issue type for a user story. DM-8058 make jointcal except early when required values are NaN

          • To Do

          Story - Created by Jira Software - do not edit or delete. Issue type for a user story. DM-10941 astrometrySourceSelector should remove sources with NaN

          • To Do

            Activity

              People

              • Assignee:
                Parejkoj John Parejko
                Reporter:
                Parejkoj John Parejko
                Reviewers:
                Yusra AlSayyad
                Watchers:
                John Parejko, John Swinbank, Lauren MacArthur, Simon Krughoff, Yusra AlSayyad
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                Dates

                • Created:
                  Updated:
                  Resolved:

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