NEWS: PSLV-C31 launched successfully from Sriharikota

20 Jan 2016    12:11 pm

NEWS: PSLV-C31 launched successfully from Sriharikota

  • The Indian Space Research Organisation (ISRO) today launched PSLV-C31 rocket successfully. Launched from Sriharikota space centre, near Chennai, the rocket is carrying the fifth satellite of India Regional NavigationSatellite System (IRNSS), the IRNSS-1E.
  • As scheduled, the rocket blasted off from the second launch pad at 9.31 am today.
  • This was the first rocket launch of the year. The fifth navigation satellite in the IRNSS space system, a constellation of seven satellites, would be at par with US-based GPS once the full complement of spacecraft is launched. The satellite’s life span is 12 years. 
  • Though the full system comprises of nine satellites — seven in orbit and two on the ground as stand-by — the navigation services could be made operational with four satellites, said ISRO. The entire IRNSS constellation is planned to be completed this year itself.
  • According to ISRO, the IRNSS-1E is carrying two types of payloads — navigation and ranging payloads. The navigation payload will transmit navigation service signals to the users. A highly accurate Rubidium atomic clock is part of the navigation payload of the satellite, ISRO said. This payload will be operating in L5-band and S-band. The ranging payload of IRNSS-1E consists of a C-band transponder (automatic receivers and transmitters of radio signals), which facilitates accurate determination of the range of the satellite. It is also carrying corner cube retro reflectors for laser ranging.
  • Till date, India has launched four regional navigational satellites (IRNSS-1A, 1B, 1C and ID) to provide accurate position information service to users across the country and the region, extending up to an area of 1,500 kms. The first satellite IRNSS-1A was launched in July 2013, the second IRNSS-1B in April 2014, the third on October 2014 and the fourth on March 2015. 
  • Each satellite costs around Rs 150 crore and the PSLV-XL version rocket costs around Rs 130 crore. The seven rockets would involve an outlay of around Rs 910 crore.
  • Once the regional navigation system is in place, India will no longer be dependent on other platforms.