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Natural and Artificial Satellites |
Natural and Artificial Satellites
Artificial Satellites: A satellite is a celestial body that orbits a planet. A satellite orbits a planet because is to the force of gravity. Unlike natural satellites, like the Moon, artificial satellites are made by human beings.
The Global Positioning System (GPS): The following links are a good starting place to acquire a wealth of technical and practical details of GPS. They contain numerous links to other sites of GPS interest.- http://gauss.gge.unb.ca/grads/sunil/resource.htm
- http://www.inmet.com/~pwt/gps_gen.htm
- http://www.ghgcorp.com/wagenx/gps.htm
- http://www.navcen.uscg.mil/gps/
- http://www.math.ilstu.edu/~day/gps.html
- http://www.laafb.af.mil/SMC/CZ/homepage/
- http://wwwhost.cc.utexas.edu/ftp/pub/grg/gcraft/notes/gps/gps.html
- http://tycho.usno.navy.mil/gps.html
- http://www.cnde.iastate.edu/gps.html
- http://gauss.gge.unb.ca/GPS.INTERNET.SERVICES.HTML
Space Geodesy Group Harvard-Smithsonian Center for Astrophysics 60 Garden St, MS 42 Cambridge, MA 02138-1516