ALOS-2, launched by JAXA, is an advanced Earth observation satellite equipped with synthetic aperture radar (SAR) technology.

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Technical Specifications

ProviderJapan Aerospace Exploration Agency
ResolutionSpotlight: 1-3m
Strip Map: 3-10m
ScanSAR: 100m
Swath width70km at nadir
Accuracy< 10m at nadir
BandsPhased Array type L-band Synthetic Aperture Radar (PALSAR)
Stereo availableNo
Revisit cycle14 days
Altitude628 km


ALOS-2, launched by the Japan Aerospace Exploration Agency (JAXA), is an advanced Earth observation satellite equipped with synthetic aperture radar (SAR) technology, providing crucial data for various applications, including environmental monitoring, disaster management, and infrastructure assessment.

Comprehensive monitoring
Comprehensive monitoring

Comprehensive monitoring of land and coastal areas for land management, conservation, and disaster response purposes.

Wide swath width
Wide swath width

Wide swath width and excellent quality data for various applications like urban planning and agriculture.

Flexible imaging capabilities
Flexible imaging capabilities

Flexible imaging with high-resolution spotlight mode and left/right look functions for 3D modelling and terrain analysis.

Features and Benefits

  • ALOS-2 is equipped with an advanced SAR system, which enables it to capture high-resolution images of the Earth's surface, day or night, and under all weather conditions.
  • It offers various observation modes, including Fine, ScanSAR, and Polarimetry, allowing users to customize data collection for specific applications.
  • ALOS-2 can cover large areas with its wide-swath observation capabilities, making it suitable for regional and global monitoring. 
  • The satellite provides precise and accurate data, allowing for the monitoring of subtle changes in land surfaces and the detection of even small-scale geological movements. 
  • ALOS-2 has a revisit time of a few days, ensuring timely updates and monitoring of dynamic environmental conditions. 
  • It can be used for interferometric SAR (InSAR) applications, which are valuable for monitoring land deformation, subsidence, and infrastructure stability.

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