For more information:

- contact our sales team:
terrasar-x@spotimage.fr

- on the satellite and the products,
visit the TerraSAR-X web site 

- Price list
 

Download TerraSAR-X order form


Consult the Press release





TerraSAR-X

Spot Image - TerraSAR-X commercial agent
- Infoterra GmbH, the exclusive commercial supplier of data from the TerraSAR-X radar satellite, has partnered with Spot Image to distribute TerraSAR-X products and services, offering direct access to telemetry and a ground segment for processing received data.
TerraSAR-X data will be promoted through Spot Image’s worldwide distribution network. To this end, Spot Image has already signed several exclusive distribution agreements covering data from the one-metre radar satellite.

TerraSAR-X, launched 15 June 2007, was funded by a public/private partnership between the German aerospace agency DLR, Infoterra Gmbh shareholder EADS Astrium and Spot Image.
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A flexible and operational system
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- TerraSAR-X is an active-array, X-band Synthetic Aperture Radar (SAR) capable of acquiring data at a resolution of 1 metre, day and night, and in all weather conditions. TerraSAR-X has a revisit interval of 11 days. However, its ability to view on either side of the ground track means it sees any point on the globe at least every 4½ days, and every 2 days in 90% of cases. The satellite has an onboard storage capacity of 256 gigabits and can downlink data in real time.
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- Satellite image acquisition modes -
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Satellite image acquisition modes

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Multiple acquisition modes
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TerraSAR-X will operate in 3 alternate operating modes:

  • SpotLight: 1-metre resolution over an area of 5 x 10 km
  • StripMap: 3-metre resolution over an area of 30 x 50 km
  • ScanSAR: 18-metre resolution over an area of 100 x 150 km

The satellite switches between acquisition modes very quickly: in SpotLight mode, the distance between two consecutive scenes is 20 km; in StripMap or ScanSAR mode, it is 7 km.
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A comprehensive product range
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Basic image products
- Basic TerraSAR-X image products offer:
  • 4 levels of radiometric and geometric correction, from raw to orthorectified, for single or multiple scenes:
    • Single Look Slant Range, Complex (SSC)
    • Multi Look Ground Range, Detected (MGD)
    • Geocoded Ellipsoid Corrected (GEC)
    • Enhanced Ellipsoid Corrected (EEC)
  • A range of polarizations: single and dual HH, VV, HV and VH combinations
  • Angles of incidence from 20° to 45° to ensure maximum performance (up to 55° in SpotLight mode)
    Products are supplied in GeoTIFF format.
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Geoinformation Products (GI)
- Basic GI products (topographic or thematic maps):
  • ORISAR Orthorectified Image
  • RANSAR Radiometric Normalization image
  • MCSAR Mosaic 
  • OISAR Oriented Image
  • ADMSAR Ascending-Descending Merge 
Advanced GI Products:
  • OMSAR Orthomap
  • SUBSAR Subsidence Map
  • CDMSAR Change Detection Map
Auxiliary input data:
  • Multisource optical and radar data 
  • Digital elevation models (DEMs), ground control points (GCPs)
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- Extract from a simulated TerraSAR-X image © 2007 German Aerospace Center (DLR)/Infoterra GmbH -
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Extract from a simulated TerraSAR-X image © 2007 German Aerospace Center (DLR)/Infoterra GmbH

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- Extract from a simulated TerraSAR-X multi-temporal image, and example of classification (X-HH, March, May, June) - © 2007 German Aerospace Center (DLR)/Infoterra GmbH -
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Extract from a simulated TerraSAR-X multi-temporal image, and example of classification (X-HH, March, May, June) - © 2007 German Aerospace Center (DLR)/Infoterra GmbH

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Direct access service
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Customers can acquire TerraSAR-X telemetry directly via a TerraSAR-X receiving station and a preprocessing terminal to generate the data products they require.
Turnkey reception systems come with a reception licence and associated user training. 

 

Train – Russia

In this 1st TerraSAR-X image acquired west of Volgograd, Russia, on 21 June 2007, a moving train can be seen. The train appears to be displaced with respect to the railway line because its position changed as the satellite was acquiring the image. TerraSAR-X’s radar antenna is able to see moving objects and calculate their speed.
This moving target detection capability is a new solution from TerraSAR-X for satellite data users.

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- Aerial image- Copyright © 2007 German Aerospace Centre (DLR)/Infoterra GmbH -
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Aerial image- Copyright © 2007 German Aerospace Centre (DLR)/Infoterra GmbH

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- Satellite image - Train – Russia -
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Satellite image - Train – Russia

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- Priority applications


The main areas of use

TerraSAR-X products and services will provide vital data for many geoinformation applications:
  • security and defence 
  • topographic and thematic mapping
  • agriculture: crop mapping, precision agriculture (irrigation, fertilizer application and crop spraying) 
  • identifying forest stands, supporting audits and monitoring forest cover 
  • urban and regional planning, environmental preservation 
  • coastal management and vessel monitoring 
  • geology
  • hazard management (flood mapping, etc.) 
  • planning and supervision of supply networks (e.g. oil pipelines)
System features and applications

  • X-band acquisition for mapping surface characteristics and resolving small features 
  • different concurrent polarizations for improved feature discrimination 
  • high geometric resolution for detection of small features 
  • high radiometric resolution to discriminate a wide variety of thematic classes 
  • high revisit frequency, at different look angles, in all weather and illumination conditions, enabling frequent observations and regular surveillance and map updating 
  • flexibility and performance: quick switching between acquisition modes (wide swath and/or high geometric resolution), detailed observation of large areas and risk diagnosis products in near-real time 
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- Satellite image - Copyright © 2007 German Aerospace Centre (DLR)/Infoterra GmbH -
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Satellite image - Copyright © 2007 German Aerospace Centre (DLR)/Infoterra GmbH

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- Satellite image - Subscene of a simulated TerraSAR-X image at maximum resolution -
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Satellite image - Subscene of a simulated TerraSAR-X image at maximum resolution

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- Electric power station

This simulated TerraSAR-X image of an electric power station (and an aerial photo of the same site) shows how optical and radar remote sensing complement one another. Very high optical resolution (submetric) is required to resolve certain features, while the radar signal is strongly reflected by the power station’s metal pylons, making them easy to identify.
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