CMS-03 Satellite
Why in News: On 2 November 2025, ISRO successfully launched CMS–03, a multiband communication satellite, aboard its heaviest rocket – LVM–3 (Launch Vehicle Mark–3).
This marks the first time ISRO launched a satellite weighing over 4,000 kg to Geosynchronous Transfer Orbit (GTO) from Indian soil — a major milestone in India’s heavy-lift space capability.
About CMS–03 Satellite
- Type: Multiband communication satellite
- Weight: 4,410 kg
- Orbit: Placed in a transfer orbit of ~29,970 km × 170 km
- Purpose: To provide multiband communication services, including secure, high-throughput data transmission for civilian and strategic applications.
- Significance: Strengthens India’s telecommunication, broadcasting, and emergency communication networks.
About the LVM–3 Rocket
- Full Name: Launch Vehicle Mark–3 (earlier known as GSLV Mk–3)
- Type: Three-stage heavy-lift launch vehicle
- Fuel System:
- 1st Stage: Solid fuel (S200 boosters)
- 2nd Stage: Liquid fuel (L110 core stage)
- 3rd Stage: Cryogenic fuel (C25 upper stage – Liquid Oxygen + Liquid Hydrogen)
- Payload Capacity:
- Up to 8,000 kg in Low Earth Orbit (LEO) (~2,000 km)
- Up to 4,000 kg in Geosynchronous Transfer Orbit (GTO) (~36,000 km)
- Previous Missions:
- Launched 72 OneWeb satellites in 2022 (two missions).
- Demonstrated flexibility beyond just GTO missions.
- Future Role:
- A modified version of LVM–3 will be used in Gaganyaan, India’s first crewed space mission.
Significance of the CMS–03 Launch
- First heavy (>4,000 kg) communication satellite launched to GTO from Indian soil.
- Reduces dependence on foreign launch services for heavy payloads.
- Demonstrates LVM–3’s maturity and reliability as a world-class heavy-lift launcher.
- Boosts India’s Atmanirbhar Bharat vision in the space sector.
Future Developments
- Lunar Module Launch Vehicle (LMLV):
- Under development by ISRO.
- Designed to carry up to 80,000 kg to Low Earth Orbit (LEO).
- Primarily intended for future crewed lunar missions and deep-space exploration.
Prelims Pointers
| Aspect | Details |
| Satellite Name | CMS–03 |
| Launch Date | 2 November 2025 |
| Rocket Used | LVM–3 (formerly GSLV Mk–3) |
| Launch Site | Satish Dhawan Space Centre (SDSC), Sriharikota |
| Satellite Weight | 4,410 kg |
| Orbit | Geosynchronous Transfer Orbit (GTO) |
| Significance | First 4,000+ kg satellite launched to GTO from India |
| LVM–3 Capability | 8,000 kg to LEO; 4,000 kg to GTO |
| Future Variant | LVM–3 (Crewed version) for Gaganyaan |
| Next-gen Heavy Vehicle | LMLV – 80,000 kg to LEO (for lunar missions) |
Source: Indian Express
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