Links to other Space/Astronomy Sites
Visual Satellite Observer's Home Page
General information on observing visible satellites
NASA satellite tracking page
A set of Java applets to generate pass predictions and show current satellite positions.
Information on Satellites
The following sites offer information about the satellites themselves, such as their purpose, mass, dimensions etc.
Jonathan's Space Report
Issued about once a week, it provides information on all recently launched satellites.
The SPACEWARN Bulletin is issued at the first of each month and provides a listing of launches and brief details of each launch from the preceding month.
Mark Wade's Encyclodedia Astronautica
Information on most satellites in Earth orbit and beyond
NASA Human Spaceflight Pages
Information on the ISS and Space Shuttle missions
Alan Pickup's SatEvo Page
Decay predictions for satellites close to re-entry.
JPL's Basics of Space Flight
An online training module to help you grasp some of the concepts of deep space missions.
Sources of Satellite Orbital Elements
Run by the US Department of Defense, responsible for making unclassified orbital elements available to the public. This organisation has taken over the task from the OIG which was run by NASA. You will need to get an account to access the data.
Mike McCants' Elements
A good page containing elements of satellites organised by category, and stored in ZIPped files for easy downloading. Also contains elements for classified satellites, and a single large file with the most recent elements of most satellites.
Historical data for a selection of satellites
National Aeronautics and Space Administration
The German Aerospace Research Center
The European Space Agency
The UK Space Agency
The French Space Agency
The Japanese Space Agency
Russian Space Research Institute
Canadian Space Agency
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