Walt Davidson wrote:

All day tomorrow, for an observer in the London area, the sun will
exactly track the Clarke Belt (which is the orbit that geostationary
satellites are put into).

So you can use the sun - tomorrow only - to adjust the tracking of
your satellite dish.

And not many people know that!



Watch your S/N ratio deteriorate as the noisy sun tracks through your
satellite dish's beamwidth.

A company I used to work for used one of the Eutelsat birds for data
distribution, and twice a year we saw our Es/N drop by 10dB for about
four minutes. It was at 11.20-ish on the 11,12 or 13th October and
again in April. And ,surprisingly, it happened even on cloudy days.
:-)

Chris