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  1. Data Management
  2. DM-8837

Reference catalog proper motions, parallaxes and errors

    Details

    • Epic Name:
      f18-ap-proper
    • Story Points:
      40
    • WBS:
      02C.03.05
    • Team:
      Alert Production
    • Cycle:
      Fall 2018

      Description

      We will need to apply proper motion corrections when matching reference catalogs to measured catalogs. This epic will implement that feature. This will require several steps:

      1. Implement standardized schema (per RFC-271)
      2. Implement correction code
      3. Write tests and verify performance

      The construction of reference catalogs is briefly discussed in LDM-151 v4.1 §6.1, but we defer to RFC-271 in terms of implementation detail. A deliverable for this epic will be documentation describing the format and contents of reference catalogs.

      Per the comment below, this epic also covers implementing RFC-368, including adding parallaxes to the reference catalogs.

        Attachments

          Issue Links

          Stories in Epic (Custom Issue Matrix)

          Key Summary Story Points Assignee Status
           
          DM-8828

          Support proper motions in reference catalogs

          14 Russell Owen Done

            Activity

            Hide
            ctslater Colin Slater added a comment -

            This is going to become more important after we rebuild the Gaia reference catalogs for DR2, which will have PM and parallax. I also expect that the questions we get from the science collaborations about our astrometric performance will become more serious around then too. John Swinbank, is implementing this somewhere on the roadmap?

            Show
            ctslater Colin Slater added a comment - This is going to become more important after we rebuild the Gaia reference catalogs for DR2, which will have PM and parallax. I also expect that the questions we get from the science collaborations about our astrometric performance will become more serious around then too.  John Swinbank , is implementing this somewhere on the roadmap?
            Hide
            swinbank John Swinbank added a comment - - edited

            This is currently on the schedule for the F18 cycle.

            Given continued staffing shortages, there is more work on the F18 schedule than it will be possible to complete. It'll be a matter of discussion with the science leadership how it should be prioritised relative to other work.

            Show
            swinbank John Swinbank added a comment - - edited This is currently on the schedule for the F18 cycle. Given continued staffing shortages, there is more work on the F18 schedule than it will be possible to complete. It'll be a matter of discussion with the science leadership how it should be prioritised relative to other work.
            Hide
            rhl Robert Lupton added a comment -

            Is adding parallax corrections included within the scope of this ticket (it needs to be at the level of precision that we'll moderately easily reach as soon as astrometric jointcal is working)?  RFC-368 specifies that we include parallax in the reference catalogues.  How does this ticket relate to DM-8828?

            Show
            rhl Robert Lupton added a comment - Is adding parallax corrections included within the scope of this ticket (it needs to be at the level of precision that we'll moderately easily reach as soon as astrometric jointcal is working)?   RFC-368 specifies that we include parallax in the reference catalogues.  How does this ticket relate to DM-8828 ?
            Hide
            swinbank John Swinbank added a comment -

            After some planning conversations over the last few days, here's where we're going with proper motions in particular and reference catalogues in general:

            • The scope of this epic will encompass both RFC-271 (adding proper motions) and RFC-368 (which includes parallaxes, amongst other things). After writing this comment, I'll update the work triggered by the latter to point to this ticket and close DM-11998 as a duplicate.
            • Paul Price has been working on adding proper motions in DM-8828. That work is temporarily on hold while he deals with some PFS issues, but he hopes to come back to finish it off within a week or two. If Paul doesn't get chance to return to this within the fairly near future, he's agreed that Russell Owen can step in to get this ticket merged.
            • During F18, Russell Owen will finish the remaining work to implement both RFC-271 & RFC-368 on this epic. That will include providing documentation describing the contents of reference catalogs.
            Show
            swinbank John Swinbank added a comment - After some planning conversations over the last few days, here's where we're going with proper motions in particular and reference catalogues in general: The scope of this epic will encompass both RFC-271 (adding proper motions) and RFC-368 (which includes parallaxes, amongst other things). After writing this comment, I'll update the work triggered by the latter to point to this ticket and close DM-11998 as a duplicate. Paul Price has been working on adding proper motions in DM-8828 . That work is temporarily on hold while he deals with some PFS issues, but he hopes to come back to finish it off within a week or two. If Paul doesn't get chance to return to this within the fairly near future, he's agreed that Russell Owen can step in to get this ticket merged. During F18, Russell Owen will finish the remaining work to implement both RFC-271 & RFC-368 on this epic. That will include providing documentation describing the contents of reference catalogs.
            Hide
            swinbank John Swinbank added a comment -

            All work on this epic (implementing both RFCs, and updating documentation to match) was carried out in DM-8828. Thanks Russell Owen!

            Show
            swinbank John Swinbank added a comment - All work on this epic (implementing both RFCs, and updating documentation to match) was carried out in DM-8828 . Thanks Russell Owen !

              People

              • Assignee:
                swinbank John Swinbank
                Reporter:
                krughoff Simon Krughoff
                Watchers:
                Chris Morrison, Colin Slater, John Parejko, John Swinbank, Robert Lupton, Simon Krughoff
              • Votes:
                0 Vote for this issue
                Watchers:
                6 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved:

                  Summary Panel