In formation flight – TerraSAR-X and TanDEM-X
In formation flight – TerraSAR-X and TanDEM-X
In October 2009 TanDEM-X, a satellite identical in construction to TerraSAR-X, was launched. This artist's impression shows the formation flight of the two satellites, which was planned for January 2010, which will generate a three-dimensional digital elevation model of Earth.