List of satellite pass predictors

The following is a list of tools on a variety of platforms that may be used to predict the pass of an orbiting artificial satellite over a given point on Earth.

They are used to generate a list of dates, times and directions when and where objects such as the International Space Station, Genesis, or Tiangong 1 space stations will be visible to ground observers, as well as many man-made objects that can be seen with the unaided eye including the Hubble Space Telescope.

This section includes applications for the iPhone, iPad and iPod touch.

Apps generally use coordinates provided by the device's built in GPS.

Some require an active internet connection others update periodically All websites and applications base their predictions on formula using two-line element sets which describe the satellites and their orbits.

Ground track example from Heavens-Above . An observer in Sicily can see the International Space Station when it enters the circle at 9:26 p.m. The observer would see a bright object appear in the northwest, which would move across the sky to a point almost overhead, where it disappears from view, in the space of three minutes.