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| NAVIC |
Maps have become an essential feature of our urban lives. We use them while driving, navigating public transport or finding our way on unfamiliar streets. Today Google Maps are one of the most popular mobile applications. They work through the global positioning system that was started by the United States of America but now India has acquired its own navigation system. Early on Thursday the navigation satellite IRNSS -1I was put in orbit by the PSLV C41 rocket 8th in its series. The satellite completes the first phase of the Indian regional navigation constellation. Navic a name given by Prime Minister Narendra Modi. The Indian Space Research Institute on Thursday launched the eight satellite in the IRNSS series once in place the homemade global positioning system will provide satellite-based navigation that will be used for both civilian and military purposes.
Between May and July of 1999 Pakistani soldiers disguised as militants infiltrated into Indian Territory and captured all Indian posts in Kargil. The infiltrators positioned themselves at key locations giving themselves a strategic advantage during the start of the war and the Indian side was faced with the difficulty of pinning down their location accurately. The government then approached the United States for help in tracking down these Pakistani infiltrators by using their GPS system. However the u.s. turned down India's request leading to the Kargil war since then the Indian Space Research Organisation has worked tirelessly to develop the country's very own GPS technology with mapping geolocation and navigation facility. Our own independent GPS system which we call the Global Positioning System is very necessary for any country to have its own. Till now we have been using the GPS system by America and the problem in that GPS system is that at any time they can cut short the data to us in case they don't want to like what they did in 1999 Kargil war. So we had to have our own system and navigate our own system in which we have seven satellites and each satellite is what we call the IRNSS. So seven satellites when they are placed in the geostationary orbit which is around thirty thousand kilometer above the earth they will serve as the independent GPS system for us and that would be a great achievement for our country because then we are not dependent on others as soon as the IRNSS 1I satellite is established in a polar orbit. A link to the indigenous GPS system will be added although this work could have been completed a long time ago in 2017. the mission to set up the satellite IRNSS-1H in the series was unsuccessful. IRNSS-1A the first satellite of the series of seven navigational satellites and has almost become useless due to the failure of three rubidium nuclear clocks. IRNSS 1I will now replace IRNSS-1A in accuracy of the satellite itself and the navigation system that we develop is extremely important today. In India we have been able to develop satellites which are highly accurate which is very difficult to achieve just because the satellite itself is moving at a very high speed. The waves take time to reach it come back to earth, inform us, calculation has to be done things have to be converted into data which has to be converted from 0 and 1 into time or distance or position whatever so. It's not something very easy but today we have capability to develop satellites which we have been developing which are highly equipped in this network as we've been informed by is row 7 satellites are required and why do you need so many satellites when triangulation needs only 3 satellites at the most because of the curvature of the earth you need more satellites. If you have to cover more area then just because of the curvature you require bigger footprint satellites yet the number has to be large one. Big satellite cannot cater to your needs and therefore you need a series of satellites. So Indian subcontinent has to be cover including the Indian Ocean which is very important to cover. You require array of satellites which we have been able to achieve. GPS satellites are designed with very advanced technology and the first priority of scientists is to make sure that the information they receive is 100% accurate therefore an automated clock is used on these satellites. The timer's in the IRNSS series have the ability to calculate accurately up to 100 millionth of a second. This makes India's GPS system navigator the navigation Indian constellation or NAVIC truly incredible. Soon we will receive these signals on our smartphones as well since this satellite system is located above India its accuracy in India would be higher than that of the United States system which means we can completely depend on the navigation received from this satellite system.