It computes the position of the Shuttle orbiter in orbit at any point in time and displays a world map with the ground trace (the position on earth that the orb

It computes the position of the Shuttle orbiter in orbit at any point in time and displays a world map with the ground trace (the position on earth that the orbiter is over). It also has the coverage of the tracking network, so it can be used to predict when the shuttle is in contact with the ground.