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India’s First Indigenous Radar Imaging Satellite RISAT-1 successfully launched by ISRO

Vishwa Samvada Kendra by Vishwa Samvada Kendra
April 26, 2012
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India’s First Indigenous Radar Imaging Satellite RISAT-1 successfully launched by ISRO
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Sriharikota (Anhdra Pradesh): At 5.47am early morning of Thursday, Indian Space Research Organisation ISRO has created another history as Polar Satellite Launch Vehicle PSLV C-19 carrying India’s First Indigenous Radar Imaging Satellite RISAT-1 successfully lifted off from Sriharikota Spaceport. The launch was scheduled at 5.47 am on April 26 from the Satish Dhawan Space Centre at Sriharikota in Andhra Pradesh.

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ಒಂದು ಪಠ್ಯ – ಹಲವು ಪಾಠ

भारतस्य प्रतिष्ठे द्वे संस्कृतं संस्कृतिश्च

India currently depends on images from a Canadian satellite as domestic remote sensing spacecraft cannot take pictures of the ground during cloud cover.

“This (Radar Imaging Satellite or RISAT-1) is about 1,850 kg. So this will be heaviest satellite lifted by a PSLV (Polar Satellite Launch Vehicle),” ISRO Chairman K Radhakrishnan had earlier said.

RISAT launched from Sriharikota

The approved cost of RISAT-1, including its development, is Rs 378 crore, while Rs 120 crore has been spent to build the rocket (PSLV-C19), making it a Rs 498-crore mission.

The satellite carries a C-band Synthetic Aperture Radar (SAR) payload, operating in a multi-polarisation and multi-resolution mode to provide images with coarse, fine and high spatial resolutions.

With 11 remote sensing/earth observation satellites orbiting in the space, India is a world leader in the remote sensing data market. The 11 satellites are TES, Resourcesat-1, Cartosat-1, 2, 2A and 2B, IMS-1, Risat-2, Oceansat-2, Resourcesat-2 and Megha-Tropiques.

Risat-1’s synthetic aperture radar (SAR) can acquire data in C-band and would orbit the earth 14 times a day.

In 2009, ISRO had launched 300 kg Risat-2 with an Israeli built SAR enabling earth observation in all weather, day and night conditions.

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