April 26th, 2012
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Indigenous satellite Risat 1 successfully launched

risatSriharikota: Indigenous satellite Risat 1 was successfully carried into space by PSLV-C19, the newest in the series of polar satellite launch vehicles of the Indian Space Research Organisation, at exactly 5.47 a.m from the launch-pads of ISRO’s Satish Dhawan Space Centre in Sriharikota, in Andra Pradesh. It will be placed in a polar circular orbit. At around 17 minutes into the flight, PSLV-C19 delivered Risat-1 into a polar circular orbit at an altitude of 480 km and an orbital inclination of 97.552 degrees.

The RISAT-1 with a payload of 1858 kg is the heaviest satellite being launched yet by the PSLV. It is a state-of-the-art Active Microwave Remote Sensing Satellite carrying a Synthetic Aperture Radar (SAR) payload that will operate in the C-band. Risat-1, with a life span of five years, would be used for disaster prediction and agriculture forestry.  The RISAT-1 can beam back imaging of the earth surface features during day and night and under all imagined weather conditions. The SAR which gives the RISAT-1 its magic lens also makes it superior to the generation of optical remote sensing satellites in terms of clearer imaging at all times and under any condition.

ISRO Chairman K. Radhakrishnan said he was happy to announce that the PSLV-C19 was a “grand success” and had injected into polar orbit India’s first Radar Imaging Satellite. “PSLV-C19 mission is a grand success. This is the 20th successive successful flight of PSLV. India’s (indigenously built) first radar imaging satellite was injected precisely into orbit,” he said after the launch.

Prof. Radhakrishnan also laid out the roadmap of PSLV launches during the year ahead and the stated that the ground tests of the GSLV driven by indigenous cryogenic technology had been promising and was scheduled completion in September-October this year. Prof. Yashpal and Prof. U.R. Rao, two of ISRO’s founding fathers were also present to partake in the celebrations of what they described as a landmark event. For ISRO, this is the first launch in this fiscal as well as in this calendar year.


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