ISRO has declared the GSLV-F17 mission successful after the launch vehicle placed EOS-05 into its intended Sub-Geosynchronous Transfer Orbit, or Sub-GTO. The spacecraft is an Earth-observation satellite and is described as India’s first imaging satellite from geosynchronous orbit.
The mission adds another flight to India’s Geosynchronous Satellite Launch Vehicle programme. GSLV-F17 is the 19th flight of the GSLV, making the successful deployment a significant milestone for the launch vehicle series and the country’s space programme.
What the mission carried
EOS-05 is a state-of-the-art Earth-observation spacecraft. Its placement into the intended Sub-GTO is the central outcome of the mission announced by ISRO.
The spacecraft’s stated role gives the launch importance beyond the vehicle’s successful ascent. EOS-05 is the first imaging satellite from geosynchronous orbit described in the mission material, linking the launch to India’s continuing work in Earth observation from high orbit.
Launch vehicle and launch site
The GSLV-F17 configuration used a payload fairing measuring 4 m in diameter. The fairing is the ogive composite version specified for this vehicle configuration.
The launch was planned from the Second Launch Pad at Satish Dhawan Space Centre, SHAR. The launch graphs associated with the mission capture the vehicle rising from the pad during lift-off, with the exhaust plume illuminating the surrounding launch area.
Why the orbit matters
A Sub-Geosynchronous Transfer Orbit is the orbit identified for the spacecraft’s initial placement by GSLV-F17. The mission material separately describes EOS-05 as India’s first imaging satellite from geosynchronous orbit, making the spacecraft’s orbital destination a defining feature of the programme.
The immediate verified result is that the launch vehicle completed its mission and delivered EOS-05 to the intended orbit. Further details about the spacecraft’s imaging capabilities, operational timeline and subsequent manoeuvres are not available here.
Conclusion
GSLV-F17 has successfully placed EOS-05 into its intended Sub-GTO, completing the 19th GSLV flight and advancing India’s Earth-observation mission with its first imaging satellite from geosynchronous orbit.
Frequently Asked Questions
Q. What did GSLV-F17 launch?
GSLV-F17 launched EOS-05, an Earth-observation spacecraft.
Q. Which orbit did EOS-05 enter?
The satellite was placed into its intended Sub-Geosynchronous Transfer Orbit, also called Sub-GTO.
Q. What is special about EOS-05?
It is described as India’s first imaging satellite from geosynchronous orbit.
Q. How many GSLV flights have taken place with GSLV-F17?
GSLV-F17 is the 19th flight of India’s Geosynchronous Satellite Launch Vehicle.
Q. Where was the launch planned from?
The launch was planned from the Second Launch Pad at Satish Dhawan Space Centre, SHAR.
Q. What payload fairing configuration did the vehicle use?
The vehicle used a 4 m-diameter ogive composite payload fairing.












