Dario Panici

Maybe instead of current API make a "perturbed coilset" class which would have `perturbations` or something related to that as its params (though it would NOT be optimizable... or just...

Add ABC for particle tracing that just implements to the point of the trajectory result

Add option to mask values when outside rho=1 (currently masking them out inside of the obj compute) or count nans and apply as penalty, or count time outside rho=1 and...

It may be related to the way we save asymmetric `wout` files and convert from our `lambda` to the VMEC-equivalent `lambda`, if the `lmnc` is somehow saved with the wrong...

This might be due to precision issues when the modenumbers are too large. This eq has `N=30` and was a fit to an NAE equilibrium. if I plot the coefficients...

check `nphi`

So in this line https://github.com/PlasmaControl/DESC/blob/fafee1fe7f76201c483f9db9bcf847de58fbf001/desc/equilibrium/equilibrium.py#L2077 the axis is set as the NAE axis, this in theory should be consistent with the whole FourierZernike basis, but I guess in practice since...

Unable to reproduce now so closing, maybe was resolved by #1643