For those who are interested in finding satellite, this may be an interesting facility. Today I joined the astrophysics club in my school to visit a satellite tracking station in California.
Basically what they do is to get the position of the satellite accurately, by shooting a ~1W laser (normal laser pointer is ~5mW) to the satellite and detect the reflected light. Using the time delay of the light pulse they can get the distance.
There are currently 2 tracking stations in US only, as not all satellite requires accurate tracking, unlike those GPS or satellites that measures sea level, gravity etc.
The telescope in the picture can move ~5 degree per second...and more importantly it's automatic!! And it is also capable to operate in day time.
The page for this station
http://ilrs.gsfc.nasa.gov/stations/site ... neral.html
http://maps.google.com/?ie=UTF8&ll=32.8 ... 1&t=h&z=18
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