Orekit version 13.1.8. The main changes are:
- Keep additional data in NumericalGradientConverter if force does not just depend on position.
- Fixed NRLMSISE00 withSwitch overwriting the main switches with the cross-terms array, and made the helium and oxygen turbopause cutoffs inclusive.
- Added angular derivatives to JPL inertial frames.
- Added angular derivatives to MOD, TOD and Ecliptic scalar and field transforms and optimized their kinematic transforms.
- Fixed NRLMSISE00 local solar time to be computed in the Earth-fixed body frame.