### Effects
### If this is a new feature or a bug fix ...
- [ ] Yes, the branch I'm proposing to merge is called `issue-xyz` where `xyz` is the number of the issue.
### If this change adds or modifies a validation case
- [ ] No.
- [ ] Yes and:
- I have coded up, or updated, an existing test case; and
- I have provided a GMAT script which confirms the result(s); and
- I have updated the `VALIDATION.md` file with the new error data between nyx and GMAT.
- I will specify the version of GMAT used for the validation.