Does NASA SkyWatch determine sightings for other satellites or just for the shuttle?
NASA SkyWatch will work on any Earth orbiting satellite provided that you have a valid state vector to start with. NASA routinely provides state vectors for ISS and the space shuttle as a service to the general public. NASA SkyWatch accesses an ephemeris (a collection of state vectors) so you don’t have to hunt around for vectors yourself (or type them in). If you are interested in a satellite that is not maintained by NASA directly, you can manually enter the state vector yourself in a variety of coordinate systems. A link at the top of the user interface connects you to a large variety of visible satellites provided by the Goddard Space Flight Center. Successful NASA satellites like the Hubble Space Telescope (HST), the Gamma Ray Observatory (GRO), the Upper Atmosphere Research Satellite (UARS), are also selectable.
