simIncludeGravBody effect divergence

[laualtsam]

Hello everyone,

I have been testing different methods for defining the Earth's gravity effect on a spacecraft:

According to the documentation, both methods should yield the same results, as they are equivalent. However, after a short propagation, I observe divergent results. Specifically, with gravModel == 2 I obtain osculating orbital elements.

Does anyone know why this discrepancy occurs?