[amsat-bb] google earth tracker update

[Joseph Armbruster]

All,

As some of you know, i've been hard at work on my ge-satellite-tracker [http://code.google.com/p/ge-satellite-tracker/].  Here is a brief update on what i've implemented since my last email:
- The concept of ground stations was added.  Configured ground stations are drawn on the Earth.
- Ground stations -> satellite line of sight indicators are rendered
- Keps can now be cached and you can work in an "offline" mode (amsat or spacetrack)
- Satellite footprints are plotted (using a spherical earth model approximation)

I have multiple blog posts with screenshots, you can access them from the project page.  Next on my agenda is to add ground station field of view and re-factor all of the ugly kml-template cruft.

If you have any special requests or suggestions, let me know.

Joseph Armbruster