Why does the Simulink point-mass high-precission orbit propagator increase semi-major axis over time?

1 view (last 30 days)
I am using the "Orbit Propagator High precision" built-in Simulink block.
I have set the gravity model to point-mass, and the input and output frames as ICRF (as they were).
I do not select a specific solver. I fix a step-size, but let Simulink automatically select a solver.
When I run a simulation, and convert the X_icrf values to orbital elements, I see that the semi-major axis continually increases over time.
Shouldn't it remain constant for this setup?
Could you clarify why the "point-mass" model is outputing such behaviour?

Answers (0)

Categories

Find more on General Applications in Help Center and File Exchange

Products


Release

R2018b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!