Encyclopedia Astronautica
TerraSAR-X



wterasar.jpg
TerraSAR-X
Credit: DLR
German civilian surveillance radar satellite. First launch 2007.06.15. Scientific / commercial surveillance satellite, equipped with an X-band synthetic aperture radar with 1 meter resolution

TerraSAR-X was built per a March 2002 partnership whereby the Federal Republic of Germany, represented by the German Aerospace Center (DLR), and EADS Astrium GmbH agreed to jointly bear the costs of constructing and implementing this X-band radar satellite. EADS was responsible for the exclusive commercial exploitation of the satellite, while DLR coordinated the scientific use of the data. Total value of the program was approximately ? 130 million, of which DLR funded ? 102 million.

TerraSAR-X was a new generation, high resolution satellite operating in the X-band at 9.65 GHz. Priority observations of any site could be performed within three days. The satellite was based on the successful X-SAR/SIR-C and SRTM missions. The radar had the following operation modes:

  • Spotlight mode with 10 x 10 km scenes at a resolution of 1-2 meters
  • Strip-map mode with 30 km wide strips at a resolution between 3 and 6 meters
  • ScanSAR mode with 100 km wide strips at a resolution of 16 meters
TerraSAR-X also supported the reception of interferometric radar data for the generation of digital elevation models. Characteristics of the satellite were:
  • SAR antenna: 4.8 m x 0.80 x 0.15 m
  • Power consumption: 605 W
  • Data storage: 256 Gbit
  • Data transmission: 300 Mbit/s - X-band downlink
  • Orbit: 514 km / 98 inclination sun-synchronous
  • Revisit interval: 11 days
  • Life time: 5 years

Development Cost $: 190.000 million. Cost Notes: Euro 130 million.. Electric System: 0.61 average kW.

Gross mass: 1,346 kg (2,967 lb).
Payload: 394 kg (868 lb).
Height: 5.00 m (16.40 ft).
Diameter: 2.30 m (7.50 ft).
First Launch: 2007.06.15.
Last Launch: 2010.06.21.
Number: 2 .

More... - Chronology...


Associated Countries
See also
  • R-36M The super-heavy Ukrainian R-36M ICBM replaced the R-36 in 288 existing silos and was additionally installed in 20 new super-hardened silos. The fall of the Soviet Union ended production and the need for replacement. Nevertheless they remained in Russian service into the 21st Century, some being modified for use as space launchers. More...

Associated Launch Vehicles
  • R-36M Ukrainian intercontinental ballistic missile. The R-36M replaced the R-36 in 288 existing silos and was additionally installed in 20 new super-hardened silos. More...
  • Dnepr Ukrainian orbital launch vehicle based on decommissioned R-36M2 intercontinental ballistic missiles. More...

Associated Manufacturers and Agencies
  • DLR German agency overseeing development of spacecraft. Deutsche Agentur fuer Raumfahrtangelegenheiten, Cologne, Germany. More...

Bibliography
  • McDowell, Jonathan, Jonathan's Space Home Page (launch records), Harvard University, 1997-present. Web Address when accessed: here.

Associated Launch Sites
  • Baikonur Russia's largest cosmodrome, the only one used for manned launches and with facilities for the larger Proton, N1, and Energia launch vehicles. The spaceport ended up on foreign soil after the break-up of Soviet Union. The official designations NIIP-5 and GIK-5 are used in official Soviet histories. It was also universally referred to as Tyuratam by both Soviet military staff and engineers, and the US intelligence agencies. Since the dissolution of the Soviet Union the Russian Federation has insisted on continued use of the old Soviet 'public' name of Baikonur. In its Kazakh (Kazak) version this is rendered Baykonur. More...

TerraSAR-X Chronology


2007 June 15 - . 02:14 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC109. Launch Pad: LC109/95. LV Family: R-36M. Launch Vehicle: Dnepr. LV Configuration: Dnepr s/n No. 9.
  • TerraSAR-X - . Mass: 1,346 kg (2,967 lb). Nation: Germany. Agency: DLR. Manufacturer: EADS Astrium. Class: Surveillance. Type: Civilian surveillance radar satellite. Spacecraft: TerraSAR-X. USAF Sat Cat: 31701 . COSPAR: 2007-026A. Apogee: 512 km (318 mi). Perigee: 499 km (310 mi). Inclination: 97.5000 deg. Summary: Scientific/commercial surveillance satellite. equipped with an X-band synthetic aperture radar with 1 meter resolution.

2010 June 21 - . 02:14 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC109. LV Family: R-36M. Launch Vehicle: Dnepr. LV Configuration: Dnepr s/n D-16.
  • Tandem X - . Mass: 1,350 kg (2,970 lb). Nation: Germany. Agency: Makeyev. Class: Surveillance. Type: Military surveillance radar satellite. Spacecraft: TerraSar-X. USAF Sat Cat: 36605 . COSPAR: 2010-030A. Apogee: 509 km (316 mi). Perigee: 507 km (315 mi). Inclination: 97.5000 deg. Period: 94.80 min. Summary: Radar surveillance satellite with 1-m resolution in spotlight mode..

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