 |  The Earth in 3D - German radar satellite TanDEM-X launched successfully
 21 June 2010
Germany’s second Earth observation satellite, TanDEM-X, was launched successfully from the
Baikonur Cosmodrome in Kazakhstan. Atop a Russian Dnepr rocket, the satellite, weighing more
than 1.3 tons and five metres in length, started its journey into orbit. The first signal was received
via the Troll ground station in the Antarctic. TanDEM-X, the twin spacecraft of TerraSAR-X already in
orbit will see both satellites’ orbits closely linked to follow formation flying requirements during
certain mission phases for X-SAR interferometry.
TerraSAR-X and TanDEM-X together form the first bistatic SAR mission. According to the HRTI-3
specifications, the primary mission objective is the generation of a consistent global digital elevation
model with an unprecedented accuracy.
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