[img]http://1.bp.blogspot.com/-M1XwyqnBWzs/UW-XTjUYSdI/AAAAAAAAU-8/P52VYICqtkU/s640/geostationary_2013-04-18_1445.png[/img]
version 18 April 2013 with added input zoom field and keyboard shift+mouse to zoom works again
http://weelookang.blogspot.sg/2010/07/ejs-open-source-geostationary-satellite.html
author: lookang based on the works of paco
https://dl.dropbox.com/u/44365627/lookangEJSworkspace/export/ejs_EarthAndSatelite.jar
worksheets by (lead) YJC: same link of four simulations https://www.dropbox.com/s/53vztw6meupn4r5/GravitationYJC.zip