Re: Small jumps in inclination

From: Bjorn Gimle (b_gimle@algonet.se)
Date: Wed Jul 02 2003 - 08:58:46 EDT

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    >
> What is the physics (or is it mathematics?) behind the irregular jumps
> in plots (inclination vs. time) by some 0.005 degs for such objects as
> 27559, 27561, 27597-27601, 27605-27612 etc.?
>
Mathematics: For a LEO orbit this corresponds to +- 0.7 km, and this is
as I recall the approximate accuracy of TLEs.

Physics: Except for seemingly random jumps, there are secular inclination
changes, ie for the sun-sync orbits about -0.06 degrees/year.

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