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IRNSS

IRNSS. Indian Regional Navigation Satellite System. Aleksander Jurica. Introduction. R egional Navigation system Developed by Indian Space Research Organization (ISRO ) Independence from US GPS GPS is not guaranteed in hostile situations The program was approved in May 2006.

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IRNSS

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  1. IRNSS Indian Regional Navigation Satellite System AleksanderJurica

  2. Introduction • Regional Navigation system • Developed by Indian Space Research Organization (ISRO) • Independence from US GPS • GPS is not guaranteed in hostile situations • The program was approved in May 2006

  3. Introduction • IRNSS will cover Indian subcontinent, South-east Asia, Iran, Indian Ocean, China, some parts of Australia, and Arab subcontinent. • IRNSS is expected to be realized by 2014-15 according to ISRO. • The first of seven satellites (IRNSS-1) is scheduled to be launched in June 2013

  4. Introduction • IRNSS will provide an absolute position accuracy of better than 10 meters throughout India and within a region. • The IRNSS system mainly consists of: Ground Segment, Space Segment and User Segment.

  5. Services

  6.  IRNSS Space Segment • Seven satellites - three in GEO orbit (at 34º E, 83º E and 131.5º E , 36000 km altitude) • four in GSO (Geosynchronous orbit) ( 35,786 km) orbit inclined at 29 degrees to the equatorial plane with their longitude crossings at 55º E and 111.5º E (two in each plane)

  7. PowerPlugs: Templates • Highest Quality • Greatest Quantity • Largest Variety • Consistent Professionalism • Visually Appealing

  8. IRNSS Space Segment • All the satellites will be continuously visible in the Indian region for 24 hours a day. • The life span of the GEOs is 9.5 years and 11 years in the case of the GSOs. • The Indian GSLV-Mk III launcher will be used for launching.

  9. The proposed satellite specifications are: • Dry mass of the satellite ~ 600 kg • Power generation 1400 watts • Fuel loading capacity ~ 785 kg • Accommodates navigation payload of weight 102 kg and 375 watts of power 

  10. IRNSS Ground Segment  • Responsible for the maintenance and operation of the IRNSS constellation.

  11. IRNSS Ground Segment  • IRNSS Space Craft Control Centre (SCC) • IRNSS Navigation Centre (INC) • IRNSS TTC & Up linking Stations (IRTTC) • IRNSS Range and Integrity Monitoring Stations (IRIMS) • IRNSS Timing Centre (IRNWT) • IRNSS CDMA Ranging Stations (IRCDR) • Laser Ranging Station (ILRS) • Data Communication Network (IRDCN)

  12. IRNSS User segment • Made of the IRNSS receivers. • Dual-frequency receivers or single frequency with capability to receive ionospheric correction. • The user receiver will have a minimum gain G/T of -27 dB/K. • They will be able to receive and process navigation data from other GNSS constellations

  13. PowerPlugs: Templates • Highest Quality • Greatest Quantity • Largest Variety • Consistent Professionalism • Visually Appealing

  14. IRNSS Signal Plan • Made of the IRNSS receivers. • Dual-frequency receivers or single frequency with capability to receive ionospheric correction. • The user receiver will have a minimum gain G/T of -27 dB/K.

  15. Thank you for your attention 

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