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Satellite's orbit is not smooth

Posted 7 months ago by Land Sea Air Space

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Land Sea Air Space

Hey, I have an issue with my satellite’s orbit. The satellites orbit looks really choppy. It is tough to describe. The motion of the satellite is smooth when playing it forward, however the orbit line looks irregular. How do I smooth out the orbit?

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Alexander Ridgeway

Alexander Ridgeway posted 7 months ago Admin

I have seen this before, especially for satellites propagated with SGP4. What you are seeing is probably the Resolution being too large. The default step between points is 600 seconds, which is too high for some orbits like LEO. To smooth the trajectories of your satellites in STK, you can adjust the resolution settings. Here are the steps to do this:

  1. Change the Resolution in the 2D Graphics Window:
    • Go to the 2D Graphics Attributes of the satellite.
    • Navigate to the [Resolution].
    • Adjust the Time between Orbit Points to a be a low value to make the trajectories smoother. Recommend using 1 second as a minimum. Just note that the graphics are more intensive but it will make your orbits smoother! 

Hope that helps.

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