ISRO successfully launches IRNSS-1E satellite

Indian Space Research Organisation (ISRO) has successfully launched India’s fifth navigation Indian Regional Navigational Satellite System (IRNSS) 1E satellite.
It was launched on board of PSLV-C31 rocket from Satish Dhawan Space Centre (SHAR), Sriharikota in Andhra Pradesh.
Key facts

  • The IRNSS-1E weighs 1425 kilogram and has the mission life of 12 years.
  • It equipped with two types of payloads viz. navigation payload and ranging devices.
  • The navigation payload will be operating in L5-band and S-band along with and highly accurate Rubidium atomic clock. It will be mainly used to transmit navigation service signals to the users.
  • The ranging payload consists of a C-band transponder. It will facilitate accurate determination of the range of the satellite.

About Indian Regional Navigation Satellite system (IRNSS)

  • IRNSS consists of constellation of seven satellites of which three are geostationary and four are non-geostationary.
  • This satellite system aims to provide real-time data on the position of objects to aid road, air and maritime traffic. It will also provide mapping and tracking services.
  • It would provide two types of services viz. Restricted Service (RS) which is an encrypted service provided to authorised users and Standard Positioning Service (SPS) to all users.

IRNSS is similar to other satellite navigation service providers like US GPS (Global Positioning System), Russia’s Glonass, Europe’s Galileo, Japan’s Quasi Zenith and China’s Beidou.



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