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When playing e.g. the Rosetta mission in Kerbal Space Program (KSP), one of the things one can achieve is called Orbit Accuracy.

Unfortunately, after searching KSP's forums and Wiki I still can not find any answer to the question: What exactly is this Orbit Accuracy and how is it defined/calculated? Is this based on reality? Especially the percentage nature of this value makes it difficult to interpret for me.

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    $\begingroup$ This seems like a gameplay-specific question, and the best place to ask would probably be the official Gameplay Questions and Tutorials. board on the official KSP forums.. The Arqade Stack Exchange at gaming.stackexchange.com would be another option. $\endgroup$
    – notovny
    Jul 4, 2021 at 20:38
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    $\begingroup$ @uhoh I don't think this question is about how accurate orbits are in Kerbal Space Program. I think this question is about how the "Orbit Accuracy" score is calculated when playing scenarios in the "Making History" expansion for Kerbal Space Program. $\endgroup$
    – notovny
    Jul 5, 2021 at 0:24
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    $\begingroup$ This question would be fine on Arqade, as I'm pretty sure it is a gameplay question. IIRC, it can be a requirement for certain contracts, requiring your orbital parameters to be within the defined limits. $\endgroup$
    – MBraedley
    Jul 5, 2021 at 0:31
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    $\begingroup$ No, this is about an accuracy figure that's specific to the game. If it were about how KSP defines "eccentricity" or something, that would be on-topic. $\endgroup$
    – Russell Borogove
    Jul 5, 2021 at 2:10
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    $\begingroup$ I disagree with that reasoning. Clarifying what's being asked is something that should be done in the question. Questions can be reopened if it can be made clear that they are on-topic. $\endgroup$
    – SE - stop firing the good guys
    Jul 11, 2021 at 8:16

1 Answer 1

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All you need to do is make sure your apoapsis, periapsis, and inclination are both within that percentage of the values specified in the contract/mission.

You can find the current values for these in the tracking centre, and creating a manoeuvrer node will allow you to see how different thrusts will change your orbit.

So, if the mission parameters say you have to be within 10% of a 125 x 340 km orbit with an inclination of 45 degrees, your periapsis needs to be between 113km and 137 km, etc.

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    $\begingroup$ Please edit the answer to tell us where you are getting this information. $\endgroup$
    – DrSheldon
    Jul 11, 2021 at 15:28
  • $\begingroup$ I might try to get some screen shots at some point. $\endgroup$
    – user40799
    Jul 11, 2021 at 17:33

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