Why in the News?
The Indian Space Research Organisation (ISRO) has successfully launched the GSAT-7R (CMS-03) communication satellite for the Indian Navy from the Satish Dhawan Space Centre, Sriharikota.
Back2Basics: Launch Vehicle Mark-3 (LVM3) Rocket
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About GSAT-7R (CMS-03):
- Overview: An advanced multiband communication satellite developed to strengthen the Indian Navy’s secure communications and maritime domain awareness across the Indian Ocean Region (IOR).
- Developer & Design: Indigenously designed by ISRO under Aatmanirbhar Bharat, advancing self-reliance in defence space infrastructure.
- Mass & Orbit: Weighs ~4,410 kg, the heaviest communication satellite launched from Indian soil; inserted into Geosynchronous Transfer Orbit (GTO) before shifting to Geostationary Orbit (~36,000 km).
- Technical Features: Equipped with secure, high-throughput multiband transponders supporting voice, data, and video links across ships, submarines, and aircraft.
- Coverage & Capability: Provides pan-Indian Ocean coverage, enabling real-time encrypted communication and Blue Water operational readiness.
- Strategic Role: Functions as a key node in the Defence Communication Network (DCN), enhancing situational awareness and naval coordination.
- Predecessor: Succeeds GSAT-7 (Rukmini, 2013) with expanded range, bandwidth, and capacity.
- Significance: Symbolises India’s move toward indigenous defence satellites, merging space technology and national security.
| [UPSC 2018] With reference to India’s satellite launch vehicles, consider the following statements :
1. PSLVs launch the satellites useful for Earth resources monitoring whereas GSLVs are designed mainly to launch communication satellites. 2. Satellites launched by PSLV appear to remain permanently fixed in the same position in the sky, as viewed from a particular location on Earth. 3. GSLV Mk III is a four-stage launch vehicle with the first and third stages using solid rocket motors, and the second and fourth stages using liquid rocket engines. Which of the statements given above is/are correct? Options: (a) 1 only * (b) 2 and 3 (c) 1 and 2 (d) 3 only |
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