Indigenous navigation satellite will increase strength


The Indian Space Research Organization launched the navigation satellite NVS-01 i.e. navigation satellite into space on 29 May. It is the first of the second generation satellites for Indian navigation services. NVS is the series of satellites which by its capabilities will advance the navigation system with the latest features. The navigation satellite NVS-01 was launched at 10.42 a.m. from the Sriharikota Space Centre, about 130 km from Chennai. ISRO’s Geostationary Satellite Launch Vehicle carrying navigation satellite NVS-01 lifted off from the space centre. ISRO informed that GSLV-F12 successfully placed the navigation satellite NVS-01 in its designated orbit. Thus, just 19 minutes after its launch, it was precisely injected into the Geosynchronous Transfer Orbit. GSLV-F12 is designed to place the NVS-01 navigation satellite weighing approximately 2232 kg into Geosynchronous Transfer Orbit. Its weight is the highest in the constellation.

This second generation navigation satellite series is considered to be a very important launch as it will ensure continuity of navigational services and provide real time position and timing services over an area of ​​about 1500 kms around India and mainland. The indigenous Indian Regional Navigation Satellite System has been named ‘NAVIC’ (Navigation with Indian Constellation). Its accuracy is 20 meters. This satellite will act as a ground station in space. Its network will provide very accurate navigation information from ordinary humans to armed forces. In this way India’s surveillance power will increase manifold with NAVIC. With its help, it will be easy to keep an eye on the activities of China and Pakistan. It is designed in such a way that with the help of signals, accurate information of time can be obtained in an interval of 50 nanoseconds. This will greatly increase the strength of the army and prevent infiltration from border areas. If India had such a satellite, intrusions like Kargil would have been detected earlier. It is noteworthy that during the Kargil conflict in 1999, India had requested the US to provide enemy bases but the US had rejected it. It is certain that this will not happen now because India’s successes in the field of space are continuing.

Be aware that this is the first GSLV mission of this year. It is noteworthy that this is ISRO’s fourth mission in the year 2023 after the second developmental flight of SSLV-D2 in February this year, LVM-M3 mission in March and PSLV-C55 mission in April. This satellite is specially designed to strengthen the armed forces and monitor shipping services. Now the country’s positioning system will become extremely powerful by being equipped with NAVIC. Navigator is America’s better answer to the Global Positioning System (GPS). The system is interoperable with the US Global Navigation Satellite System signals, GPS, Russia’s GLONASS, EU’s GALILEO and China’s BeiDou. Therefore it can be used in ground, air and sea transport location based services, surveying and geodesy, scientific research, time dissemination, life safety alert dissemination, personal mobility and resource monitoring.

The NVS-01 satellite will be deployed in Earth’s Geosynchronous Transfer Orbit at an altitude of 36568 km. From there it will move around the Earth in an elliptical orbit. In this way it will provide navigation services of every area of ​​India’s borders. NVS-01 will give accurate real time positioning of any place. This satellite navigation payload operates in L1, L5 and S bands. The L1 navigation band is most popular for providing position, navigation and timing services for civilian users and for providing interoperability with other Global Navigation Satellite System signals.

NVS-01 is a second generation satellite with additional capabilities, which make the signals more secure. The main work of this satellite is land, sky and sea navigation, strategic application, internet of things, orbit detection for satellites, time service for commercial institutions, power grids and government agencies, geodetic survey, marine fisheries, fleet management, emergency service, To provide location based service and agriculture related information in mobile. NVS-01 satellite will get energy from two solar panels. Due to this it will get 2.4 kW energy. Apart from this, there will also be charging of the lithium ion battery installed in the satellite. This satellite will continue to work for the next 12 years after its launch. Thus this satellite will have a long mission life of more than 12 years. It is noteworthy that the mission life of the present satellites is only 10 years. The result of the power of indigenous technology is that for the first time a rubidium atomic clock has been installed in this satellite, which will work to tell the correct date and location. According to the space agency, scientists earlier used rubidium atomic clocks imported from abroad to determine the date and location. Now the rubidium atomic clock developed at the Space Applications Center in Ahmedabad has been installed in this satellite. Only a few countries have the technology to make such watches in the world. Satellite-based positioning systems use atomic clocks to determine the position of objects by accurately measuring the time it takes for a signal to be sent and returned. If there is no success in this work, it means that the atomic clocks are not working properly. In such a situation, the satellite becomes unable to tell the exact location.

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