Write an app to calculate orbital elements and pop up an alert: "Imaging object arriving over horizon, take action"

http://en.wikipedia.org/wiki/Orbital_elements

http://www.heavens-above.com/

Other countries have done this for years, and cover their equipment with camo cover when opposing country assets are overhead. This is why the Air Force/Boeing X-37B is such a big deal; its an asset that can shift orbits to counterattack known orbit information.

http://en.wikipedia.org/wiki/Boeing_X-37

http://www.spacedaily.com/reports/X_37B_Gets_Stranger_999.ht...