description TanDEM-X Overview
TanDEM-X (Terrain Digital Elevation Model) is a German radar satellite launched in 2010 by the German Aerospace Center (DLR). It operates in a tight helix formation with its twin satellite, TerraSAR-X, to create a single-resolution synthetic aperture radar (SAR) interferometer. By acquiring data simultaneously from two slightly different angles, the pair generated a globally homogeneous digital elevation model at a 12-meter spatial resolution. This highly accurate dataset serves geoscientists, commercial mapping entities, and military organizations.
insights Ranking position
TanDEM-X ranks #4 of 187 in the Satellite ranking, behind Syncom 3, ahead of TRMM.
help TanDEM-X FAQ
What does the acronym TanDEM-X stand for?
TanDEM-X stands for TerraSAR-X add-on for Digital Elevation Measurement. It is a German radar satellite that works in close formation with its twin satellite, TerraSAR-X.
What was the primary mission objective of TanDEM-X?
The primary objective was to generate a highly accurate global digital elevation model (DEM). By flying in close formation with TerraSAR-X, the satellites created an interferometric radar configuration capable of achieving a 12-meter spatial resolution.
Which space agency operated the TanDEM-X satellite?
TanDEM-X was implemented as a public-private partnership between the German Aerospace Center (DLR) and EADS Astrium. DLR managed the mission and controlled the satellite's operations.
How close do TanDEM-X and TerraSAR-X fly to each other?
The two satellites fly in a helix formation, coming as close as 120 to 200 meters apart in certain orbital configurations. This incredibly tight flight pattern allows them to create a single giant radar interferometer in space.
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