Re: Es Hail 2 LNB Antidrift
Mr VILLAIN Laurent
Yes thats why the satellite must be kepted in the cube of 25 kms side.
A perfectly stable geostationary orbit is an ideal that can only be approximated. In practice the satellite drifts out of this orbit because of perturbations such as the solar wind, radiation pressure, variations in the Earth's gravitational field, and the gravitational effect of the Moon and Sun, and thrusters are used to maintain the orbit in a process known as station-keeping.
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On Fri, Dec 28, 2018 at 4:13 PM +0900, "Simon Brown" <simon@...> wrote: