India will launch a spy satellite from Sriharikota spaceport on April 20 primarily to keep an eye on its borders round-the-clock and help the Government in anti-infiltration and anti-terrorist operations.
The 300-kg radar-imaging satellite has been built by Israel and is set to blast-off on board India's home-grown rocket, the Polar Satellite Launch Vehicle (PSLV).
This remote-sensing advanced imaging satellite, to be positioned 550 km above the earth, has all-weather capabilities.
It carries Synthetic Aperture Radar (SAR) payload, which can take images during day, night and all weather conditions including under cloud cover, a capability that Indian satellites do not have.
Given the sensitiveness of the venture, the Indian Space Research Organisation is tight-lipped over the mission, not giving out much details.
A senior ISRO official, who spoke to PTI on condition of anonymity, said that the significance of the satellite is its all-weather capability.
"It will be primarily used for defence and surveillance. The satellite also has good application in the area of disaster management and in managing cyclones, floods and agriculture-related activities," he said.
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