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  1. Data Management
  2. DM-8828

Support proper motions in reference catalogs

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    • Story Points:
      14
    • Epic Link:
    • Sprint:
      AP F18-2, AP F18-3, AP F18-4
    • Team:
      Alert Production

      Description

      Neglect of proper motion in the reference catalog can cause zonal astrometric errors in wide-field surveys (Tholen, Micheli & Elliott 2013). We therefore require a means to transform reference catalog positions to the epoch of observation.

      The PS1 PV3 catalog contains columns with the proper motions for RA and Dec in arcsec/year (pmRa, pmDec) with associated errors, and the mean epoch in seconds relative to the UNIX epoch (epoch). It would be good to support this scheme even if another is chosen.

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              • Assignee:
                rowen Russell Owen
                Reporter:
                price Paul Price
                Reviewers:
                Simon Krughoff
                Watchers:
                Chris Walter, Eric Bellm, Jim Bosch, John Parejko, John Swinbank, Michael Wood-Vasey, Paul Price, Russell Owen, Simon Krughoff, Wil O'Mullane
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