Navigation satellite launch on Thursday, countdown going smoothly

We Now Know The Exact Location Of GSAT-6A Communication Satellite, Says Isro Chief

Bright and early beginning for Isro

The 43rd mission of the PSLV taking place on Thursday was declared a success by ISRO after the IRNSS-1I was placed into a precise orbit.

By Hemanth C S IRNSS-1I is slated to blast off from Sriharikota at 4 am on ThursdayIsro has scheduled an early morning launch for the Indian Regional Navigation Satellite System, IRNSS-1I navigation satellite on April 12. "Proud of team ISRO", the PM wrote.

The PSLV-C41/IRNSS-1I took off from the Sathish Dhawan Space Centre at 4:04am. "It will be the start of Isro's journey of using the industry to be system integrators of satellites", said an Isro scientist, who did not want to be named.

Indian Space Research Organisation Chairman K Sivan described the mission as a success and congratulated the scientists.

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On the status of the recently launched GSAT-6A satellite that lost communication link soon after it was put into orbit, Sivan said the space agency was able to locate the satellite and track its movements.

The navigation satellite IRNSS-II is part of Indian satellite navigation system "Navigation with Indian Constellation" (NavIC) in a copy-book style. ISRO also wants Indian firms to built and launch satellites on PSLV which is some kind of a workhorse to send small satellites from across the globe into space. It was the 41st successful mission of the 43 for PSLV. These clocks had been made by a leading Swiss firm, Spectratime, which provides timekeeping devices to navigation satellites the world over, including China's Compass constellation.

While IRNSS-1I will replace IRNSS-1A, ISRO has no intention of de-orbiting the latter. The objective of these IRNSS satellites is to create India's own navigation system which would be in the lines of US' GPS or Global Positioning System.

As aforementioned, this is the 9th launch in the IRNSS fleet, however, it is the 8th satellite in the constellation after its newly launched IRNSS-1H back in August developed problems and finally, it resulted in losing it after all. "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 atomic clocks are important to provide the accurate positional data. There are also launch missions for remote sensing satellites, NavIC satellite and the Chandrayaan-2/moon mission. During the conflict, the country extremely felt the absence of satellite-based navigation system and the American system was not available at the time.

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