About TerraSAR-X and TanDEM-X
TerraSAR-X and TanDEM-X are German radar satellites from DLR. TerraSAR-X launched in 2007 and was joined by TanDEM-X in 2010. Both satellites remain operational. The twin satellites feature a unique geometric accuracy that is unmatched by any other spaceborne sensor.
|Launch Date||TerraSAR-X: 15 June 2007
TanDEM-X: 21 June 2010
|Orbit Height||514 km at equator|
|Orbit Repeat Cycle||11 days|
|Ascending node / equatorial crossing time||15:00 ± 0.25h (local)|
TerraSAR-X and TanDEM-X are part of ESA's Third Party Missions Programme, in which ESA has an agreement to distribute data products from the missions.
TerraSAR-X and TanDEM-X Objectives
Flying in close formation, the objective of the TerraSAR-X and TanDEM-X satellites is to simultaneously image Earth's terrain from different angles with unprecedented accuracy for research and development purposes as well as scientific and commercial applications.
TerraSAR-X and TanDEM-X Instruments
The primary payload on the TerraSAR-X and TanDEM-X satellites is an X-band radar sensor. This instrument allows the satellites to acquire images with different swath widths, resolutions and polarisations.
The TerraSAR-X and TanDEM-X SAR instrument is an active phased array X-band antenna system with operational modes of 'stripmap', 'spotlight' and 'scanSAR' permitting the acquisition of high-resolution imagery as well as of wide-swath imagery.
|Spotlight HS mode||SpotlightSL mode||Experimental Spotlight||Stripmap mode (SM)||ScanSAR mode (SC)|
|Product coverage, (km)
along-track x cross-track
|5 x 10||10 x 10||5 x 10||≤ 1500x 30||≤ 1500x 100|
TerraSAR-X and TanDEM-X Data
ESA is offering, for scientific research and application development, access to Full archive and New Tasking data from TerraSAR-X and Tandem-X missions depending on submission and acceptance of a project proposal.
ESA will support as many high-quality and innovative projects as possible within the available quota limit, therefore, only a limited amount of products can be made available to each project from the below collections.
Registered users can have access to the TerraSAR-X ESA archive through the online dissemination server.
The archive continues to grow as ESA collects and stores new products.
Tools available for visualising, processing and analysing TerraSAR-X and TanDEM-X data:
TerraSAR-X and TanDEM-X data can be processed using the PolSARpro tool. PolSARpro (Polarimetric SAR data Processing and Education) supports the scientific exploitation of polarimetric SAR data and is a tool for high-level education in radar polarimetry.