ISRO successfully launches RISAT1 satellite using PSLV -C19 today morning at 05:47 hours from Sriharikota in Orissa.&nbsp;PSLV-C19 has &nbsp;injected RISAT-1 satellite into an orbit of 480&amp;#160;km altitude at an inclination of 97.552o. Using thrusters onboard the satellite, RISAT 1 has been configured in to its final orbit at 536&amp;#160;km. The 71 hours countdown for the launch was started at 06:47 hours on 23 April.
RISAT-1- Radar imaging Satellite.
PSLV- Polar Satellite launch&nbsp;vehicle.&nbsp;
RISAT 1 is India&rsquo;s first radar imaging satellite and it is also the heaviest one weighing 185&amp;#160;kg which is launched by PSLV. PSLV C19 is the high end version of (PSLV XL) with six extended strap-on motors with each carrying 12 tonnes of solid propellant. PSLV C19 launched RISAT 1 in his&nbsp;third&nbsp;flight. Two earlier flight of PSLV C19 were used to launch Chandrayaan 1 and GSAT 12 communication satellite.
Radar Imaging Satellite-1 (RISAT 1) is&nbsp;ignominiously&nbsp;built &nbsp;Microwave Remote Sensing Satellite carrying a&nbsp;synthetic&nbsp;aperture&nbsp;radar (SAR) payload operating in C-Band (5.35 GHZ), which enables imaging of the earth surface features during both day and night under all weather condition. The mission life of RISAT 1 is five years and RISAT 1 will generate power from sun.
Active Microwave remote sensing capabilities of RISAT 1 proved for cloud&nbsp;penetration&nbsp;and day night imaging capabilities. It will help in paddy monitoring and management of natural disaster like flood and cyclone.




The image clarity of C- band Synthetic Aperture Radar. Few days back DRDO added another feather in the defense&nbsp;infrastructure&nbsp;of India by successfully launching Agni V and entered in to the exclusive club ICBM. Step by step there are many organization in India like DRDO, ISRO ( India Space Research Organization) are &nbsp;boosting Indian technology capabilities in Space and defense.


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