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Why does the line of apsides rotate in the plane of the orbit ? In case of a sun synchronous orbit does it have any effect on imaging accuracy or quality?

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    $\begingroup$ Did you try googling this? The first five results I got all look pretty good. $\endgroup$ – Organic Marble May 24 '16 at 22:29
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    $\begingroup$ @Soumajit Why don't you post it as the answer to this question then? Then it won't show up in the "Unanswered" questions list. (You could also potentially earn a badge). $\endgroup$ – Phiteros Jul 11 '16 at 17:09
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The Earth is not a perfect sphere. To first order it is an oblate spheroid. This term in the Earth's gravitational potential is what causes sun synchronous orbits to precess.

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We're looking for long answers that provide some explanation and context. Don't just give a one-line answer; explain why your answer is right, ideally with citations. Answers that don't include explanations may be removed.

  • $\begingroup$ That's true, but rather extremely terse. $\endgroup$ – Nathan Tuggy Feb 4 '17 at 0:06

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