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13 April 2018, 01:52 | Myrtle Vega
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India had started the process of developing its own indigenous navigation satellite system after the U.S. refused to provide GPS data to the Indian armed forces during the Kargil war with Pakistan in 1999.
ISRO's Polar Satellite Launch Vehicle (PSLV) went to space from Sri Harikota, Andhra Pradesh at 4.04 am on Thursday. It was a normal lift-off, ISRO officials were quoted as saying by PTI. In a text-book launch, about 18 minutes later, the rocket injected GSAT-6A into the geostationary transfer orbit as the ISRO scientists broke into celebrations at the mission control centre.
The IRNSS-1I Satellite will be blasted off from First Launch Pad (FLP) of SDSC SHAR, Sriharikota.
"As of now, the (IRNSS 1I) satellite is doing well", said M. Annadurai, director of the ISRO Satellite Center. During the conflict, the country extremely felt the absence of satellite-based navigation system and the American system was not available at the time. According to the DoS: "Signal in space is provided globally by GPS of USA, GLONASS of Russia, Galileo of Europe and Beiden of China".
This was the second attempt by the ISRO to replace the faulty satellite IRNSS-1A since the first attempt was doomed due to a heat-shield failure of the Polar Satellite Launch Vehicle (PSLV) in August past year. The other IRNSS payload built and launched by India failed to enter the navigation network when it was stranded on its rocket during a PSLV flight in August.
The successful launch came just 14 days after the much larger Geosynchronous Satellite Launch Vehicle or GSLV rocket launch on March 29 spelled a setback for the space agency as it lost communication with the satellite within two days. With a lift-off mass of 1425 kg like all of its predecessors, it carries an L5 and S-band navigation payload with Rubidium Atomic Clocks on board.
It added, "After separation, the solar panels of IRNSS-1I were deployed automatically". IRNSS provides two types of services, namely, Standard Positioning Services provided to all users and Restricted Services, provided to authorised users. The fishermen can also get alert messages relating to bad weather, high waves or when they approach the global maritime boundary line. These services are provided through a software application on a smart phone.
In the road transport sector, NavIC helps commuters to traverse distances and also enables transport operators to track their vehicles. It is also used for other applications like location-based services, survey and alignment, and time synchronised services.
Congratulating Team Isro for the successful launch, Prime minister Narendra Modi tweeted: "Congratulations to our scientists on the successful launch of navigation satellite IRNSS-1I by PSLV". The satellite remained inside the nose shroud after the rocket reached a lower-than-planned orbit.
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