Proposed new ForceModel: J2-only

Orekit development
1

Hi all,

I’ve been thinking, it’d be handy to have a J2-only perturbation readily available for (Field)NumericalPropagator. Of course the feature itself is already available, but the idea would be to avoid the overhead of HolmesFeatherAttractionModel. Thoughts?

Cheers,
Romain.

2

Hi @Serrof

How do we handle the case where a user add both force models (i.e., J2 and HolmesFeatherstone)? Do we throw an exception at propagator.addForceModel(…) level?

Best regards,
Bryan

3

Hi Bryan,

I guess there will be no exceptions, just like I believe nothing is thrown when one adds the same third body twice. We’ll just need to be extra clear with the documentation.

Cheers,
Romain.