I am trying to simulate the orbit of an asteroid over a long period of time in order to see the change in the orbit due to a constant force applied to the asteroid. Initially, I used GMAT to simulate the orbit but quickly ran into an error that prevented me from running it more than ~100 years. Does anyone know how to fix this issue? If not, what programs would be able to do this and not run into the same error as GMAT? Thank You.
This was the error:
PlanetaryEphem (sub)class exception: Requested epoch 95008.513478505 is not on the DE file 'D:\GMAT\bin\..\data\planetary_ephem\de\leDE1941.405'.