After the successful launch, Indian Space Research Organisation Chairman K Sivan said, "I am extremely happy to announce that the PSLV has precisely injected the navigation satellite in the targeted orbit".
In a tweet, Modi said: "Congratulations to our scientists on the successful launch of navigation satellite IRNSS-1I by PSLV". Officials mentioned that it was a normal takeoff. It is the latest addition to the 'Navigation with Indian Constellation (NAVIC)', a group of satellites orbiting above India that will serve as a domestic version of the American government-owned Global Positioning System. "They (Isro) calculate the launch time to put the satellite in a particular location or orbit and so they chose this time". On August 31, 2017, it had sent IRNSS-1H but the mission failed after the heat shield covering the satellite failed to separate. This launch took place after 14 days of GSLV, or Geosynchronous Satellite Launch Vehicle, which had some technical difficulties and the GSAT that it had been heaving lost contact due to system failure.
ISRO's Chairman Dr. K. Sivan asserted that both IRNSS-1H and IRNSS-1L are developed by a consortium of multiple companies which is what ISRO is looking forward to following in all its future missions.
While IRNSS-1I will replace IRNSS-1A, ISRO has no intention of de-orbiting the latter. The satellite was launched on 12 April 2018 at 4:04 am. IRNSS system is expected to provide position accuracy of better than 20 m over Indian region and an area extending about 1500 sq km around India.
The NavIC constellation is really going to create history and make innovative applications to the entire community in the ocean-based services especially for the underserved and unserved, Sivan said. "Currently, GSAT-6A is moving in the geo transfer orbit at perigee of around 26,000km and apogee of about 33,000km".
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Like its predecessors, IRNSS-1I carried two types of payloads: Navigation and Ranging. "One speciality of this mission is it was within two weeks (of the last launch), the shortest time span we had two missions from the spaceport".
The very heavy 5.7-tonne GSAT-11 high-throughput or broadband satellite is getting ready here for launch on a European rocket.
To a query if ISRO was facing a funds crunch, he said it was not the case.
IRNSS-1I is the eighth such satellite to be a part of a constellation. He said many new modifications has been added to this launch vehicle.