Indian
Regional Navigation Satellite System: Overview
- The IRNSS will have a constellation of seven satellites
- the IRNSS-1A is the first of the seven regional, satellite-aided navigation systems built by ISRO.
- The satellite will be kept in geosynchronous Orbit at a height of 36000kms.
- The System is intended to provide an absolute position accuracy of better than 20 meters throughout India and within a region extending approximately 2,000 km around it.
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| Indian Regional Navigation Satellite System |
- The IRNSS-1A will provide accurate information on the position of cars/trucks, ships and aircraft vis-à-vis their destination, with the help of a receiver.
- It could be an independent receiver, or built into a mobile phone, a car or a ship. The satellite can provide precise information when the aircraft is about to land on the runway.
- The pilot will know how far he is from the runway or at what height he is above the runway, with an accuracy of 20 metres.
- Unlike the Global Positioning System (GPS) which can be used anywhere, this is called a regional navigation system because it is available to users in India and the surrounding region. A highly accurate atomic clock is part of the navigation payload of the satellite.
- Thus, the IRNSS applications include terrestrial, aerial and marine navigation, disaster management, tracking of vehicles, guiding hikers and travellers, and visual and voice navigation for drivers.
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| Indian Regional Navigation Satellite System |
The
ground segment of IRNSS constellation would consist of a
- Master Control Center (MCC),
- ground stations to track and estimate the satellites' orbits and ensure the integrity of the network (IRIM), and
- additional ground stations to monitor the health of the satellites with the capability of issuing radio commands to the satellites (TT&C stations).
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what is Indian Regional Navigational Satellite System
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