Table of Contents

  1. Downloading and setting up OSPREI
  2. Basic interplanetary OSPREI
  3. Fancy interplanetary OSPREI
  4. Setting up ForeCAT magnetic field
  5. Full OSPREI runs
  6. Running Ensembles
  7. Final Remarks
  8. Appendix

7. Final Remarks

This should be all the information needed to start running OSPREI on your own. We did skip test runs 4 and 6, but these are largely included so that CK can make sure all the different flavor combinations are running correctly after large changes. Test run 4 is an interplanetary ensemble simulation and test run 6 is a single full OSPREI run with the fancy satellite paths instead of directly-passed values (as in test run 5).

There is a little bit of a learning curve/art form to determining the appropriate input values. The 2022 Space Weather paper on OSPREI gives a good example on how to determine the inputs. Since then, we have developed preliminary methods for estimating default values for some of the “difficult” CME parameters, namely B and T, which are included in the code. At this point, OSPREI only requires the CME lat, lon, tilt, vr, and AW to be specified, in addition to the satellite position. More information is certainly better, if it is available, but these 5 properties should be obtainable for most observed cases.

The OSPREI code is the result of 10 years of development and 15(?) papers, and CK has largely been the only one with my hands on the code. She's tried to keep good coding practices but if any errors arise feel free to contact her. She can probably diagnose the source fairly quickly and make sure we update the repository accordingly.