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What is RISAT?

Updated: 8/17/2019
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RISAT (Radar Imaging Satellite) is a number of Indian radar imaging reconnaissance satellites built by the ISRO (Indian Space Research Organisation).

They provide all weather surveillance using SAR (Synthetic Aperture Radars).

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Name all the artificial satellites launched by India after aryabhatta?

1. Aryabhata 19.04.1975 First Indian satellite. Provided technological experience in building and operating a satellite system. Launched by Russian launch vehicle Intercosmos. 2. Bhaskara-I 07.06.1979 First experimental remote sensing satellite. Carried TV and microwave cameras. Launched by Russian launch vehicle Intercosmos. 3. Bhaskara-II 20.11.1981 Second experimental remote sensing satellite similar to Bhaskara-1. Provided experience in building and operating a remote sensing satellite system on an end-to-end basis. Launched by Russian launch vehicle Intercosmos. 4. Ariane Passenger Payload Experiment (APPLE) 19.06.1981 First experimental communication satellite. Provided experience in building and operating a three-axis stabilised communication satellite. Launched by the European Ariane. 5. Rohini Technology Payload (RTP) 10.08.1979 Intended for measuring in-flight performance of first experimental flight of SLV-3, the first Indian launch vehicle. Could not be placed in orbit. 6. 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INSAT-4A 22.12.2005 The most advanced satellite for Direct-to-Home television broadcasting services. 33. INSAT-4C 10.07.2006 State-of-the-art communication satellite - could not be placed in orbit. 34. INSAT-4B 12.03.2007 An identical satellite to INSAT-4A further augment the INSAT capacity for Direct-To-Home (DTH) television services and other communications. 35. INSAT-4CR 02.09.2007 Designed to provide Direct-To-home (DTH) television services, Video Picture Transmission (VPT) and Digital Satellite News Gathering (DSNG), identical to INSAT- 4C . Indian Remote Sensing Satellite (IRS) 36. IRS-1A 17.03.1988 First operational remote sensing satellite. Launched by a Russian Vostok. 37. IRS-1B 29.08.1991 Same as IRS-1A. Launched by a Russian Launch vehicle, Vostok. Still in service. 38. IRS-1E 20.09.1993 Carried remote sensing payloads. Could not be placed in orbit. 39. IRS-P2 15.10.1994 Carried remote sensing payload. Launched by second developmental flight of PSLV. 40. 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