This one can be a very short and easy question, but I wanna know the proper answer of them..

Few days ago I got a questions like:

  1. "What kind of perturbation(s) can cause drift on RAAN value of a highly inclined satellite?"

as a follow up that question one also came up as:

  1. "What kind of maneuver can we do in order to correct that drift? In-Plane (E/W) or Out-of-Plane (N/S)? Or mix of them?"

I believe I had some proper answers for those questions, but I doubt it at the same time.. So, what you guys thinking of them? Thanks in advance!

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    $\begingroup$ I have changed to "drift" from "drag". My bad, sorry.. $\endgroup$ Sep 23, 2021 at 12:52
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    $\begingroup$ thanks! 1. sounds like nodal precession and 2. I guess a costly, continuous plane change maneuver, there's probably some place around the eccentric orbit where it would be most effective. (for some reason there's nothing about plane changing maneuvers in Wikipedia's Orbital maneuver) $\endgroup$
    – uhoh
    Sep 23, 2021 at 13:44
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    $\begingroup$ Nodal precession is a continuous plane change and nothing else. If you execute a plane change maneuver of the opposite sign, you 'll zero out RAAN drift. $\endgroup$
    – uhoh
    Sep 23, 2021 at 14:44
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    $\begingroup$ Okay, now I got it! Thank you for your all explanations @uhoh! So, the final result will be the doing a plane change maneuver. $\endgroup$ Sep 23, 2021 at 15:10
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    $\begingroup$ I'm no expert on this topic at all, so I haven't posted an actual answer. I'm hoping that someone else will. If you are convinced then you are welcome to post an answer to your own question, which is always okay in Stack Exchange! If you include a link or citation or a plane change maneuver description and mention at what point in an elliptical orbit is the best place to do it, then I think you've got a very nice answer. $\endgroup$
    – uhoh
    Sep 24, 2021 at 1:12


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