- PSLV-C31 successfully put into orbit IRNSS-1E, the fifth satellite of the Indian Regional Navigation Satellite System (IRNSS) after its succesful launch from the Satish Dhawan Space Centre (SDSC), SHAR, Sriharikota
- PSLV-C31 for the eleventh time used ‘XL’ version of PSLV.
- IRNSS-1E, with a liftoff mass of 1425 kg, carried navigation payload and ranging payload
- Some 19 minutes after it lifted off from Second Launch Pad of the SDSC at 9.31 am,, PSLV-C31 placed the satellite in precise orbit.
- PSLV C-31 rocket has successfully launched IRNSS-IE satellite in orbit
- The configuration of IRNSS-1E is similar to that of IRNSS-1A, 1B, 1C and 1D launched by PSLV-C22, PSLV-C24, PSLV-C26 and PSLV-C27 in July 2013, April 2014, October 2014 and March 2015 respectively.
- The ranging payload of IRNSS-1E consists of a C-band transponder which facilitates accurate determination of the range of the satellite. IRNSS-1E also carries Corner Cube Retro Reflectors for laser ranging.
- Besides the deployment of the constellation of seven satellites, the ground segment comprises 13 Indian Range and Integrity Monitoring Stations, a IRNSS Network Timing Centre, a ISRO Navigation Centre and a Space Control Facility.
- IRNSS, an independent regional navigation satellite system, is designed to provide accurate position information service to users in India as well as the region extending up to 1,500 km from its boundary.
- The system is expected to provide a position accuracy of better than 20 metre in the primary service area.
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