GSAT-18

GSAT-18 Latest News

GSAT-18 Satellite and Economic Concerns Raised by PAC

Why in the News?

• The Public Accounts Committee (PAC) has raised concerns over the economic viability of GSAT-18 due to the underutilisation of six transponders until 2027.
• The committee has recommended that the Department of Space should exercise greater financial prudence in planning satellite projects involving public funds.
• The report highlighted a revenue loss of ₹117 crore due to the idle transponders.

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About GSAT-18

• GSAT-18 is a communication satellite launched by the Indian Space Research Organisation (ISRO) on October 5, 2016.
• Launch Vehicle: Heavy-duty Ariane-5 VA-231 rocket from Kourou, French Guiana.
• Weight: 3,404 kg at liftoff.
• Mission Life: 15 years (until 2032).
• Orbit: Injected into Geosynchronous Transfer Orbit (GTO).
• Satellite Control: Managed by ISRO’s Master Control Facility (MCF) in Hassan, Karnataka.

Key Features of GSAT-18

• Transponders: 48 communication transponders across Upper Extended C-band, Normal C-band, and Ku-band
• Services: Provides television, telecommunication, VSAT, and digital satellite news gathering
• Fleet enhancement: It strengthens ISRO’s operational fleet of 14 telecommunication satellites
• Backup role: It ensures continuity of communication services by replacing ageing satellites

GSAT-18 FAQs

Q1. What is GSAT-18?
Ans. GSAT-18 is an Indian communication satellite launched in 2016 to enhance telecommunication, broadcasting, and broadband services.

Q2. Which organization launched GSAT-18?
Ans. It was launched by ISRO aboard an Ariane 5 rocket from French Guiana.

Q3. What is the weight and lifespan of GSAT-18?
Ans. It weighs around 3,400 kg and has a planned lifespan of 15 years.

Q4. What services does GSAT-18 provide?
Ans. It supports TV broadcasting, VSAT services, and telecommunication networks across India.

Source: IE