This launch vehicle carried the CMS-03 communication satellite into the Geosynchronous Transfer Orbit (GTO)
India’s LVM3-M5 Launches Heaviest Communication Satellite CMS-03 Successfully
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The Powerful LVM3-M5 Rocket and Its Mission
On November 2, 2025, India achieved a significant milestone in space exploration by successfully launching the LVM3-M5 rocket. This launch vehicle carried the CMS-03 communication satellite into the Geosynchronous Transfer Orbit (GTO). Notably, CMS-03 is India’s heaviest communication satellite to date, weighing approximately 4400 kg, representing another successful ISRO satellite launch. The mission marks the fifth operational flight of the LVM3 series and continues India’s reputation for reliable space technology.
The CMS-03 satellite will provide important communication services spanning a wide oceanic region as well as covering the entire Indian landmass. This expanded coverage will enhance telecommunication and broadcasting services across various regions, following ISRO’s satellite launch protocols.
A Look at LVM3’s Growing Capabilities
The LVM3 series has demonstrated robust performance with each mission. Earlier this year, it launched Chandrayaan-3, allowing India to become the first country to land near the lunar south pole successfully. Building on this success, the current mission proves that India’s space technology can handle heavier payloads while maintaining precise injection into orbit. This is another testament to the successful ISRO satellite launch strategy.
How CMS-03 Benefits Communication Services
This satellite supports multiple frequency bands, enabling improved connectivity for users across diverse terrains. It is designed to boost telecommunication infrastructure including internet access, TV broadcasting, and disaster management communication systems. Thanks to satellites like CMS-03, remote areas receive better access to essential digital services. ISRO’s satellite launch initiatives continue to enhance these services significantly.
The Science Behind Geosynchronous Transfer Orbit (GTO)
Geosynchronous Transfer Orbit (GTO) refers to a specific path where satellites are inserted so they can reach geostationary orbits later with onboard propulsion. Satellites in these orbits stay fixed relative to Earth’s surface, which is critical for consistent communication signals and successful ISRO satellite launches.
The Journey from Launch Pad to Orbit
The journey begins with rocket liftoff from ground facilities after thorough pre-launch checks. Following separation of CMS-03 from LVM3-M5’s upper stage in GTO, onboard thrusters maneuver it into its final orbit above Earth’s equator at about 35,786 kilometers altitude. This location allows stable positioning essential for long-term telecom functionality, which marks another step in ISRO satellite launches.
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Reference:
- LVM3-M5/CMS-03 MISSION. (n.d.). Retrieved November 3, 2025, from https://www.isro.gov.in/LVM3_M5_CMS_03_MISSION.html
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