Naval Communication Satellite CMS-03

On 2nd November 2025, the Indian Space Research Organisation (ISRO) successfully launched CMS-03, an advanced military communication satellite, aboard the LVM3-M5 rocket from Sriharikota.

The mission marked a major enhancement in India’s maritime communication capabilities and strategic self-reliance in defence space infrastructure.

Feature	Details
Satellite Type	Dedicated naval communication satellite belonging to the GSAT-7R class.
Launch Vehicle	Launched aboard the LVM3 rocket into Geosynchronous Transfer Orbit (GTO).
Launch Mass	Weighing 4,400 kg, it became ISRO’s heaviest communication satellite launched from Indian soil.
Primary User	Developed primarily for the Indian Navy.
Coverage Area	Covers the Indian subcontinent and a vast portion of the Indian Ocean Region (IOR).
Orbit	Positioned in Geosynchronous Orbit after orbit raising using the Liquid Apogee Motor (LAM).
Key Capabilities	Provides secure voice, data, and video communication links along with support for network-centric warfare operations.

Strategic Importance

Strengthens India’s maritime surveillance and communication network.
Enhances secure naval connectivity across the Indian Ocean Region.
Supports real-time information sharing and network-centric naval operations.
Boosts India’s indigenous strategic communication infrastructure.

PT Facts

CMS-03: Significant for India’s maritime security and naval communication capability.
Geosynchronous Orbit: Satellites match Earth’s rotation period and are ideal for communication services.
Indian Ocean Region: Central to India’s maritime strategy and sea-lane security interests.
LAM: Liquid Apogee Motors are used for orbit raising and satellite positioning.

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