Uploaded image for project: 'Data Management'
  1. Data Management
  2. DM-23530

Cannot create SkyWcs warning when reading the sky frame.

    Details

    • Type: Story
    • Status: To Do
    • Resolution: Unresolved
    • Fix Version/s: None
    • Component/s: None
    • Urgent?:
      No

      Description

      Some time last year we started to see a warning when reading the sky frame.

      CameraMapper: Cannot create SkyWcs using VisitInfo and Detector, using metadata-based SkyWcs: Cannot create SkyWcs from camera geometry: rotator angle defined using RotType=RotType.UNKNOWN instead of SKY.
      

      To reproduce:

      from lsst.daf.persistence import Butler
      butler = Butler('/datasets/hsc/repo')
      butler.get('sky', visit=218, ccd=11)
      

        Attachments

          Activity

          hchiang2 Hsin-Fang Chiang created issue -
          Hide
          hchiang2 Hsin-Fang Chiang added a comment -

          It seems to have started sometime between w_2019_31 and w_2019_34

          Show
          hchiang2 Hsin-Fang Chiang added a comment - It seems to have started sometime between w_2019_31 and w_2019_34
          Show
          lauren Lauren MacArthur added a comment - In case it helps, this was added on commits https://github.com/lsst/obs_base/commit/c7cf7a637b6ddfa81db224f0e2d3df390951554d & https://github.com/lsst/obs_base/commit/fbbd39f949ed04256a81a5890bf633f3fb85113f as part of DM-20154 .
          tjenness Tim Jenness made changes -
          Field Original Value New Value
          Component/s obs_lsst [ 16504 ]
          tjenness Tim Jenness made changes -
          Watchers Hsin-Fang Chiang, Lauren MacArthur [ Hsin-Fang Chiang, Lauren MacArthur ] Hsin-Fang Chiang, Lauren MacArthur, Merlin Fisher-Levine [ Hsin-Fang Chiang, Lauren MacArthur, Merlin Fisher-Levine ]
          tjenness Tim Jenness made changes -
          Component/s obs_lsst [ 16504 ]
          Hide
          tjenness Tim Jenness added a comment -

          This is HSC data? This is also a processed file and not a raw?

          Show
          tjenness Tim Jenness added a comment - This is HSC data? This is also a processed file and not a raw?
          Hide
          lauren Lauren MacArthur added a comment -

          Yes, it’s a global sky correction frame computed post-SFM. I didn’t see it in obs_base policy files, but it’s defined here in obs_subaru

          Show
          lauren Lauren MacArthur added a comment - Yes, it’s a global sky correction frame computed post-SFM. I didn’t see it in obs_base policy files, but it’s defined here in obs_subaru

            People

            • Assignee:
              Unassigned
              Reporter:
              hchiang2 Hsin-Fang Chiang
              Watchers:
              Hsin-Fang Chiang, Lauren MacArthur, Merlin Fisher-Levine, Tim Jenness
            • Votes:
              0 Vote for this issue
              Watchers:
              4 Start watching this issue

              Dates

              • Created:
                Updated:

                Summary Panel