TerraSAR-X (TSX) is an X-band satellite launched by the German Space Agency (DLR). The DLR also launched a second nearly identical satellite called TanDEM-X (TDX) into the same orbit as TSX. The two satellites are now flying in formation separated by a few hundred meters and they are starting to use the two satellites to acquire bi-static InSAR data where one satellite transmits and both receive the data to obtain simultaneous SAR images with a moderate baseline for topographic mapping (similar to SRTM). The two satellites are also being used to acquire the regular mono-static or single-satellite images.

Processing TSX data

The DLR (and commercial data provider Infoterra) only provide TSX and TDX data as SLC or multi-looked products. They do not distribute raw data. The DLR provides the SLC images (which they call SSC or slant-range single-look complex) in a format called COSAR (see Raw Formats page for more details).

Scripts for ingesting TSX and TDX mono-static data acquired in Stripmap mode into ROI_PAC (including the cosar program) posted here. The "make_tsx_slc.csh" script calls other Python scripts and programs to convert the TSX data to a {$date.slc} image file with associated {$date.slc.rsc} metadata. The package on this page requires a recent version of Python to run. Walter Szeliga has posted a new C++ version of the TSX data ingestion code on the ContribSoftware page. The new code can also extract Spotlight mode TSX data.

Note that a number of other changes to the ROI_pac "process_2pass.pl" and other scripts and programs may be necessary to process TSX data because processing has to start from SLCs and TSX SLC images are typically wider than other SAR images. These changes will be included in the ROI_pac v3.1 release soon.

Access to TSX data

There are 3 ways to gain access to TSX data. One way is to write a science data proposal to DLR and purchase the data directly from them. The data costs 200 euros per scene.

Another way is to register at the website, and then write a proposal for no cost access to data from the DRA-2010 (Dual Receiver Antenna) campaign. More information about this campaign is available in this pdf.

WInSAR members have another way to access data, subject to the following rules from the data provider (DLR: the German Space Agency)

TSX (last edited 2014-09-02 15:42:22 by WalterSzeliga)