Europa SDI: Datum Subgroup

When 8PM GMT, 12PM PST, 1PM MST MS Teams Meeting

• Trent
• Mike
• Paul
• Jay

• Mike:
  • The final USGS network allowed Cilix to adjust.
  • Has a Juno image and has points that he is happy with. He just needs to run the bundle.
  • Is good with how to do a multi-instrument bundle in ISIS.
  • Some of the reconstructed SPICE for Voyager is really terrible. So the data need to be updated a bit (deltack; resected) to get the observations onto the body.
  • Is it necessary to remove the SPICE from the data? Don’t think so. Watch for the covariance matrices as they are effectively weights.
• Paul:
  • Would like the bundle to support off-body pixels - automatic resection?
  • Working on inter-image registration more. Finding more low-quality control points in the network. That is a concern for the shape model, but not necessarily for the image mosaics.
  • Question: What is the broader timeline for the creation of a final network?
  • Europa is a priority. September / early October to having a network (Voyager, Galileo I/II (high and low resolution), and Juno).
  • Question: Is the intention to run the test or not run the tests as previously discussed?
    • Yes, but after the intern is done.
  • Question: Is the proposed work going to address the offsets that were measured?
    • Yes, this will tell us how relevant the differences are.
    • No, the low-res to high-res is not necessarily the issue. The low-res to low-res should, intuitively match better.
  • Paul can run the adjustment this summer.

June 20 @12PM PST