The Indian Space Research Organisation (ISRO) will launch military communications satellite CMS-03 from the Satish Dhawan Space Centre in Sriharikota.

About CMS-03 Satellite
The CMS-03 (GSAT-7R) is a military communication satellite developed by the Indian Space Research Organisation (ISRO) for the Indian armed forces, particularly the Navy. Scheduled for launch on November 2, 2025, it is designed to be the heaviest communication satellite launched from Indian soil to date. 
Purpose and capabilities

• Military communication: The CMS-03 is a multi-band satellite that will provide secure, high-bandwidth communication links for the Navy, Air Force, and Army.
• Maritime defense: It is intended to strengthen the Indian Navy's communication network and expand its operational reach across the Indian Ocean and other critical maritime zones. The satellite's real-time communication capabilities will enable secure links between warships, submarines, aircraft, and shore-based command centers.
• Civilian and strategic applications: In addition to military use, the satellite will aid civilian agencies and improve digital access for remote territories by offering sharper, higher-capacity bandwidth.
• Modernization: As the replacement for the GSAT-7 satellite, CMS-03 features upgraded payloads and improved signal clarity. 

Launch details

• Launch vehicle: The CMS-03 will be launched aboard India's most powerful operational rocket, the Launch Vehicle Mark-3 (LVM3).
• Launch site: The mission will take place from the Satish Dhawan Space Centre in Sriharikota, Andhra Pradesh.
• Payload weight: At approximately 4,400 kg, it will be the heaviest communication satellite launched from Indian soil.
• Orbit: The satellite will be placed into a Geosynchronous Transfer Orbit (GTO) before maneuvering into a geostationary orbit, where it will remain over a fixed longitude. 

Significance

• Strategic autonomy: The CMS-03 mission is a major step toward achieving self-reliance in India's defense communication systems and maritime domain awareness.
• Technological advancement: The launch demonstrates ISRO's capabilities in heavy satellite technology and advanced transponder systems.
• Enhanced security: By ensuring seamless, secure communication, the satellite will significantly strengthen India's defense preparedness. 

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