Satellite Technology Current Affairs

ISRO to develop full-fledged Hyperspectral Imaging Earth observation satellite

The Indian Space Research Organisation (ISRO) is planning to launch a full-fledged niche Earth observation (EO) satellite — called the Hyperspectral Imaging Satellite (HySIS).

The HySIS satellite has critical chip called an “optical imaging detector array’” indigenously developed by ISRO. Its launch will allow ISRO to enter the domain of operational hyperspectral imaging from earth orbit.

Hyperspectral Imaging

Hyperspectral imaging or hyspex imaging (imaging spectroscopy) combines the power of digital imaging and spectroscopy. It collects and processes information from across the electromagnetic spectrum. Hyspex’ imaging enables distinct identification of objects, materials or processes on Earth by reading the spectrum for each pixel of a scene from space. The hyspex technology is still an evolving science. In recent times, it has become trend that is being experimented globally. It has ability to add a new dimension to plain-vanilla optical imagers.

Key Facts

HySIS satellite developed by ISRO can see in 55 spectral or colour bands from 630 km above ground. It can be used for a range of applications from monitoring the environment, crops, looking for oil and minerals, military surveillance. The architecture of the optical imaging detector array chip on board of satellite has been designed by the payloads development centre, Space Applications Centre, Ahmedabad. It was manufactured at ISRO’s electronics arm, the Semi-Conductor Laboratory, Chandigarh. It can read upto 1000 x 66 pixels.

Background

ISRO for first time had tried out hyspex imaging technology in an 83-kg IMS-1 experimental satellite in May 2008. The same year, it also had mounted hyperspectral camera on Chandrayaan-1 and used to map lunar mineral resources. Globally so far, very few space agencies have such a satellite.

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IBM inks MoU with NRSC to monitor mining activities using satellite technology

Indian Bureau of Mines (IBM) has signed a MoU with the National Remote Sensing Centre (NRSC) to monitor the mining activities in the country through satellite technology.

As part of the MoU, IBM would set up an exclusive remote sensing cell under the technical guidance of the NRSC at its offices in Nagpur and Hyderabad.

Key facts

  • The remote sensing cell will utilise web-based Bhuvan GIS (Geographic Information System) services for monitoring mining activities.
  • Initially pilot project will be undertaken to demonstrate the feasibility of using high resolution satellite imagery in monitoring the changes over a period of time in select group of mines.
  • The pilot project will be launched in Odisha and Hospet sector of Karnataka to check and validate consistency of differential geo positioning system points.
  • MoU envisage to train IBM staff to use the modern technology in the course of time and would be extended to the State Governments.

 About Indian Bureau of Mines (IBM)

  • IBM is a multi-disciplinary government organisation under the aegis of Department of Mines, of Union Ministry of Mines. It was established in 1948.
  • It is engaged in promotion of scientific development of mineral resources, conservation and protection of environment in mines other than petroleum & natural gas, coal, atomic minerals and minor minerals.

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