<http://www.gsfc.nasa.gov/gsfc/educ/fyeo/faq/gorbit.htm> <http://en.wikipedia.org/wiki/Geostationary_orbit> <http://www.alcyone.com/max/writing/essays/geostationary-orbits.html> (Sorry Aq) -- Ron Wellsted http://www.wellsted.org.uk ron at wellsted.org.uk N 52.567623, W 2.137621