1)   Planet's Orbits 1.7.0
Planet's Orbits (for Windows 98/ME/2000/XP) is an accurate digital orrery with a wealth of functionality. The program uses the DE404 ephemeris (accurate for dates between 2000 B.C. and 6000 AD) for the calculation of planetary (except Pluto).

 2)   Tracking Earth Satellites 1
The Use of Videography in Tracking Earth Satellites.Scattered around the world is a network of about sixteen amateur observers who spend most of their spare time looking at earth satellites.They concentrate on tracking classified military satellites.