A Milestone Launch for ISRO
ISRO’s 100th Launch from Satish Dhawan Space Centre: On 29th January 2025, the Indian Space Research Organisation (ISRO) achieved a historic feat by successfully executing its 100th launch from the Satish Dhawan Space Centre located in Sriharikota. This landmark mission was carried out by the Geosynchronous Satellite Launch Vehicle (GSLV-F15), which successfully deployed the NVS-02 satellite into its designated orbit. This milestone symbolizes much more than just a number — it reflects the continuous advancement and growing mastery of India’s space technology sector.
Significance of the NVS-02 Satellite
The NVS-02 is the second satellite in the Navigation with Indian Constellation (NavIC) series — India’s indigenous regional satellite navigation system designed to deliver accurate navigation and positioning services across India and its neighboring regions. Comparable to GPS but tailored for India’s unique requirements, the satellite weighs approximately 2,250 kg and is built on the I-2K satellite bus platform. It is equipped with advanced payloads operating across the L1, L5, and S bands, alongside a C-band ranging payload. Notably, the satellite integrates a blend of domestic and imported atomic clocks, essential for maintaining the precision timing crucial to navigation systems.
GSLV-F15 and Indigenous Cryogenic Engine Innovation
The GSLV-F15 marks the 17th mission in the GSLV series and the 11th flight to feature an indigenously developed cryogenic upper stage. Cryogenic technology involves the use of super-cooled liquid propellants that provide enhanced thrust and efficiency, enabling the placement of heavier payloads like NVS-02 into geosynchronous orbits. This indigenous cryogenic engine exemplifies India’s technological self-sufficiency, reducing reliance on external sources and elevating India’s standing in the global space community.
ISRO’s Evolution and Legacy
ISRO’s journey began in 1979 with the launch of the Satellite Launch Vehicle-3 (SLV-3 E10). Since then, ISRO has successfully designed and developed six generations of launch vehicles, each offering enhanced payload capacities and mission capabilities. The achievement of the 100th launch is a testament to decades of dedicated research, innovation, and consistent growth, highlighting India’s prominent place in the global space race.
Static Usthadian Current Affairs Table
| Topic/Term | Details/Explanation |
| ISRO 100th Launch | Milestone achieved on January 29, 2025, from Sriharikota |
| GSLV-F15 | 17th GSLV flight, 11th with indigenous cryogenic stage |
| NVS-02 Satellite | Second NavIC satellite, weighs 2,250 kg |
| NavIC System | India’s regional satellite navigation system |
| Indigenous Cryogenic Engine | Enables heavier payloads to geosynchronous orbit |
| Satish Dhawan Space Centre | ISRO’s main launch facility located in Sriharikota |
| ISRO’s First Launch (1979) | SLV-3 E10 launch marking the start of India’s space journey |
