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ISRO Launches NVS-02, Marks 100th Mission from Sriharikota

The Indian Space Research Organisation (ISRO) marked a historic milestone with its 100th launch from Sriharikota on January 29, 2025. The GSLV-F15 rocket successfully lifted off from the Satish Dhawan Space Centre at 6:23 a.m., placing the NVS-02 navigation satellite in a Geosynchronous Transfer Orbit 19 minutes after launch. This mission strengthens India’s Navigation with Indian Constellation (NavIC) system, reinforcing India’s self-reliance in satellite-based navigation.

Key Highlights of ISRO”s Launch

Launch Details

  • Launch Date: January 29, 2025
  • Launch Site: Satish Dhawan Space Centre, Sriharikota
  • Rocket Used: Geosynchronous Satellite Launch Vehicle (GSLV-F15)
  • Payload: NVS-02 Satellite
  • Orbit Placement: Geosynchronous Transfer Orbit (GTO)

Significance: 100th mission from Sriharikota

  • ISRO”s Achievements Over 100 Launches
  • Total Satellites Launched: 548 satellites
  • Total Payload Weight Lifted: 120 tonnes
  • Indian Satellites: 433
  • Foreign Satellites: 115
  • Total Foreign Payload Weight: 23 tonnes

NVS-02 and NavIC System

  • Part of: Navigation with Indian Constellation (NavIC)
  • Replaces: IRNSS-1E satellite at 111.75°E
  • Payload Bands: L1, L5, S bands + C-band for ranging
  • Atomic Clock: Combination of indigenous and procured atomic clocks
  • Purpose: Enhancing Position, Velocity, and Timing (PVT) services

NavIC Satellite System

  • India’s regional navigation satellite system
  • Provides two services
  • Standard Positioning Service (SPS): Accuracy better than 20 metres
  • Restricted Service (RS): Secure service for strategic use
  • Primary Service Area: India & 1,500 km beyond Indian landmass
  • Second-Generation NavIC Satellites (NVS Series)
  • NVS-01: Launched May 29, 2023 (first with an indigenous atomic clock)
  • NVS-02: Launched on January 29, 2025
  • Future Satellites: NVS-03, NVS-04, NVS-05

Applications of NavIC

  • Strategic & Military Uses
  • Shipping Vessel Tracking
  • Train Tracking & Safety Alerts
  • Disaster Management & Early Warning Systems
  • Time Synchronization for Critical Sectors

Significance of the Indigenous Atomic Clock

  • Developed under ‘Make in India’ initiative
  • Key for precision timekeeping in satellite navigation
  • Improves accuracy of NavIC’s services
Summary/Static Details
Why in the news? ISRO Launches NVS-02, Marks 100th Mission from Sriharikota
Mission Name GSLV-F15/NVS-02
Launch Site Sriharikota (Satish Dhawan Space Centre)
Rocket Used GSLV-F15
Satellite NVS-02 (NavIC Series)
Orbit Placement Geosynchronous Transfer Orbit (GTO)
Significance 100th launch from Sriharikota
Total Satellites Launched by ISRO 548
Payload Weight Lifted 120 tonnes
NavIC Services Standard Positioning Service (SPS) & Restricted Service (RS)
NavIC Accuracy Position: <20m, Timing: <40 nanoseconds
Future NVS Satellites NVS-03, NVS-04, NVS-05
ISRO Launches NVS-02, Marks 100th Mission from Sriharikota_4.1