TanDEM-X (Courtesy of DLR)
The goal of the TerraSAR-X add-on for Digital Elevation Measurement (TanDEM-X) mission is to generate a high-accuracy global Digital Elevation Model (DEM). The goal will be achieved through a second SAR satellite (TanDEM-X) flying in a tandem orbit configuration with TerraSAR-X. Like TerraSAR-X, the satellite also carries the experimental Tracking, Occultation and Ranging (TOR) package provided by GFZ. TOR consists of a two-frequency CHAMP type GPS receiver and a CHAMP Laser Retro-Reflector (LRR).
The mission's objectives are:
- generation of DEM (e.g., for hydrology)
- along-track interferometry (e.g., for measurement of ocean currents)
- bi-static applications (e.g., polarmetric SAR interferometry)
High-precision orbit determination and interferometric baseline vector information of the tandem configuration will be accomplished through the TOR instrument.
The ILRS Governing Board approved the TanDEM-X support request in May 2008.
TanDEM-X has the following instrumentation onboard:
- Active phased array X-band SAR
- Tracking, Occultation, and Ranging (TOR) package
- GPS receiver
- Retroreflector array
- Laser Communication Terminal (LCT)
|Sponsor:||DLR, GFZ, Infoterra (Germany)|
|Expected Life:||5 years|
|Primary Applications:||research and applications|
|Primary SLR Application:||precision orbit determination|
|NORAD SSC Code:||36605|
|NP Bin Size||5 seconds|
|RRA Diameter:||5 cm|
|Reflectors:||4 corner cubes|