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RISAT-2
RISAT-2, or Radar Imaging Satellite 2 is an Indian radar reconnaissance satellite that is part of India's RISAT programme. It was built by the Israel Aerospace Industries and successfully launched aboard a PSLV-CA rocket at 01:15 GMT on April 20, 2009 from the Second Launch Pad at the Satish Dhawan Space Centre.
RISAT-2's main sensor is an X-band synthetic aperture radar from Israel Aerospace Industries (IAI). It is designed to monitor India's borders and as part of anti-infiltration and anti-terrorist operations. The satellite has a mass of .
==Technical capabilities==
RISAT-2 is India's first heavy satellite with a synthetic aperture radar. It has a day-night, all-weather monitoring capability. Potential applications include tracking hostile ships at sea that could pose a military threat.
Though ISRO sought to underplay the satellite's defence applications in its announcements, a majority of the media classified it as a spy satellite. ISRO's website claims that the satellite will enhance ISRO's capability for earth observation, especially during floods, cyclones, landslides and in disaster management in a more effective way. In a significant deviation, India's state television Doordarshan, did not telecast the launch live.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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