Uploaded image for project: 'Data Management'
  1. Data Management
  2. DM-36306

DM ampNames are different from official focal plane layout

    XMLWordPrintable

    Details

    • Type: Improvement
    • Status: To Do
    • Resolution: Unresolved
    • Fix Version/s: None
    • Component/s: obs_lsst
    • Labels:
      None
    • Team:
      External

      Description

      The official document describing the focal plane layout is https://docushare.lsst.org/docushare/dsweb/Get/Version-65557/LCA-13381-B-APPROVED-(DetectorPlaneLayout).pdf
      The amp names in this document are Segment00 -> Segment17. However, within the DM stack, amp.getName() returns C00 -> C17. This has caused confusion. Can I assume that C12 is the same as Segment12? The EXTNAME values in the fits headers are also SegmentXX. We either need to edit the approved focal plane layout and change the EXTNAME in the headers, or we need to change the amp names in DM to be SegmentXX so that they agree with the focal plane document and the headers. I propose the latter, but we can discuss.

        Attachments

          Activity

          Hide
          ktl Kian-Tat Lim added a comment -

          To add further confusion, documents such as LCA-10140 define the FITS "CHANNEL" keyword as a number from 1 to 16.

          Show
          ktl Kian-Tat Lim added a comment - To add further confusion, documents such as LCA-10140 define the FITS "CHANNEL" keyword as a number from 1 to 16.
          Hide
          roodman Aaron Roodman added a comment -

          And note that the amplifiers have 3 numbering systems in LCA-13381.  "Output" was used only by the CCD vendors - we should not use it at all.  "Segment", ie. 00 to 07 and 10 to 17, is the most official name and numbering scheme.  And we added "Amp" # 1 to 16 which was used as the FITS extension number and in Camera EOTest code and outputs.

          Show
          roodman Aaron Roodman added a comment - And note that the amplifiers have 3 numbering systems in LCA-13381.  "Output" was used only by the CCD vendors - we should not use it at all.  "Segment", ie. 00 to 07 and 10 to 17, is the most official name and numbering scheme.  And we added "Amp" # 1 to 16 which was used as the FITS extension number and in Camera EOTest code and outputs.

            People

            Assignee:
            Unassigned Unassigned
            Reporter:
            cslage Craig Lage
            Watchers:
            Aaron Roodman, Craig Lage, Kian-Tat Lim, Robert Lupton
            Votes:
            0 Vote for this issue
            Watchers:
            4 Start watching this issue

              Dates

              Created:
              Updated:

                Jenkins Builds

                No builds found.