Isro set to launch NVS-02 sat January 29, to give boost to navigation service; GSLV-F15 is 100th Launch | India News



NEW DELHI: To give boost to India’s space-based navigation system and make it more easily accessible to civilians, Isro is set to launch new-generation navigation satellite NVS-02 by GSLV-F15 rocket at 6.23 am from the second launchpad at Sriharikota on Wednesday.
GSLV-F15 is the 17th flight of the Geosynchronous Satellite Launch Vehicle and the 11th flight with an indigenous cryo stage. This will be Isro’s 100th launch to lift off from Sriharikota. The Satellite Launch Vehicle (SLV) was the first big rocket to be launched by India from Sriharikota on Aug 10, 1979.
NVS-02 is the second satellite in the new generation of navigation satellites, which will become part of the Navigation with Indian Constellation (NavIC) system. NVS-02 will help improve NavIC‘s services, which are used for navigation, precision agriculture, emergency services, fleet management, and even mobile device location services. Also, this would be the first mission under newly appointed Isro chairman V Narayanan, who assumed office on Jan 13.
Before NVS-02, Isro had launched NVS-01, the first second-generation navigation satellite, on board GSLV-F12 on May 29, 2023. For the first time, an indigenous atomic clock was flown in NVS-01. NVS-02 will use a combination of indigenous and procured atomic clocks for precise time estimation. The second satellite in the NVS series is configured with navigation payload in L1, L5 and S bands in addition to ranging payload in C-band like its predecessor-NVS-01.
Five second-generation NavIC satellites — NVS-01, 02, 03, 04 and 05 are envisaged to augment the NavIC base layer constellation with enhanced features for ensuring continuity of services. The NVS series of satellites incorporates L1 band signals additionally to widen the services.
Isro is actively working on enhancing the coverage of NaVIC, from its current range of 1,500 km to an extended 3,000 km beyond India’s borders. Once the expansion of coverage is achieved, NaVIC will not only serve India but also extend its signals to neighbouring countries in the South Asian Association for Regional Cooperation (Saarc) region.
NVS-02 satellite was designed, developed and integrated at the U R Satellite Centre (URSC) with the support of other satellite-based work Centres. On completion of assembly and integrated testing, the satellite was subjected to satellite level thermovac test to verify and validate its design and performance in simulated space environment during Nov-Dec 2024. The satellite underwent dynamic testing during Dec 2024 thus confirming its suitability to withstand the dynamic loads anticipated during launch.
The NVS-02 satellite will be placed in a Geosynchronous Transfer Orbit (GTO) that has a highly elliptical orbit with a perigee (distance from Earth) of approximately 200 km and an apogee (that is distance from Earth) of around 36,000 km. A satellite in this orbit has an orbital period equal to the Earth, allowing it to appear stationary from a ground perspective.





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