ISRO Developing Hyperspectral Imaging Earth Observation Satellite (Download PDF)

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The Indian Space Research Organisation (ISRO) is launching a full-fledged Earth observation (EO) Hyperspectral Imaging Satellite (HySIS). ISRO’s HySIS satellite can observe 55 spectral or colour bands from 630 km above ground.

Image of Hyperspectral Imaging Technology

Image of Hyperspectral Imaging Technology

Image of Hyperspectral Imaging Technology

What is HySIS?

  • A typical EO satellite can only observer or collect data in a few bands of frequency. On the other hand, hyperspectral imaging, or imaging spectroscopy, combines the power of digital imaging and spectroscopy. For each pixel, a hyperspectral camera acquires the light intensity (radiance) for a large number (typically a few tens to several hundred) of contiguous spectral bands. Every pixel thus contains a continuous spectrum (in radiance or reflectance) allowing characterization of objects with great precision.

  • The HySIS satellite has “optical imaging detector array” indigenously developed by ISRO- allowing ISRO to become one of the few countries with hyperspectral imaging capability from earth orbit. It has a resolution of 1000 x 66 pixels

  • ISRO’s HySIS satellite can observe 55 spectral or colour bands from 630 km above ground.

  • Applications include monitoring the environment, crops, oil and minerals discovery, military surveillance.

  • Optical imaging detector array chip designed by the payloads development centre, Space Applications Centre, Ahmedabad and manufactured at ISRO’s electronics arm, the Semi-Conductor Laboratory, Chandigarh.

Background

  • ISRO tried out hyspex imaging technology in an 83-kg IMS-1 experimental satellite in May 2008.

  • Hyperspectral camera on Chandrayaan-1 was used to map lunar mineral resources.

- Published/Last Modified on: September 4, 2017

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