The Indian Space Research Organisation has achieved another monumental milestone in space exploration with the successful launch of the Geosynchronous Satellite Launch Vehicle, designated as the GSLV F-17 mission.
Lifting off majestically from the Second Launch Pad at the Satish Dhawan Space Centre in Sriharikota, the rocket precisely injected the state-of-the-art EOS-05 Earth observation spacecraft into its targeted Sub-Geosynchronous Transfer Orbit.
Weighing approximately 2,367 kilograms, the satellite stands as India's first-ever advanced Earth imager designed specifically to operate from high-altitude geosynchronous orbit, marking a quantum leap in the national space program.
The three-stage launch vehicle, standing 51.7 metres tall and weighing a massive 420.5 tons at liftoff, executed all flight phases flawlessly, powered by its indigenously developed cryogenic upper stage.
The launch vehicle flew with an impressive four-metre diameter ogive composite payload fairing, protecting the sophisticated satellite during its ascent through the dense layers of the atmosphere.
Known also by its series designation GISAT-1A, the EOS-05 acts as a replacement for the earlier GISAT-1 mission, reinforcing the country's capability for continuous monitoring of the Indian subcontinent.
Unlike traditional Earth observation satellites placed in Low Earth Orbit that pass over regions intermittently, EOS-05 is engineered to sit nearly 36,000 kilometres above the equator.
From this immense altitude, the spacecraft's orbital period perfectly matches the rotation of the Earth, enabling it to remain in a stationary position relative to the surface below.
This continuous spatial positioning allows the spacecraft to generate near-real-time imaging of the landmass and ocean bodies at rapid intervals of approximately 30 minutes, with target revisit times as low as five minutes.
The capabilities of EOS-05 offer critical primary data for tracking fast-evolving natural disasters such as cyclones, widespread floods, sudden forest fires, and landslide events.
Additionally, the spacecraft will actively support agricultural sector assessments, water body mapping, urban infrastructure planning, environmental monitoring, and vital strategic security surveillance.
The successful mission directly highlights the robust technical maturity achieved by Bangalore-headquartered space research facilities and their collaborative ecosystem.
The mission also saw active private sector engagement, encouraging an emerging Start-Up ecosystem and established industrial partners that supply key vehicle hardware components.
With the successful deployment of EOS-05, India joins an elite group of spacefaring nations capable of maintaining constant high-resolution eye-in-the-sky surveillance from deep geostationary space.
IDN (With Agency Inputs)
