Latest edition · Friday, 4 September 2026 · Bengaluru Mission desk active

Launch

GSLV-F17 places EOS-05 in intended orbit

The September 4 mission update confirms orbital insertion, while post-launch spacecraft commissioning and operational service remain unreported in the reviewed accounts.

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GSLV-F17 standing beside its launch tower at the Second Launch Pad before launch
GSLV-F17 at the Second Launch Pad before its September 4 mission, in an image published in ISRO's mission gallery. Credit: ISRO.
2:55 a.m.reported liftoff, IST
~18 min.reported time to orbital placement
19thGSLV flight, per ISRO
2,367 kgreported EOS-05 payload mass

The Indian Space Research Organisation says its GSLV-F17 rocket placed the EOS-05 Earth-observation satellite into its intended sub-geosynchronous transfer orbit after lifting off from Sriharikota early on September 4. The mission result supersedes the agency's August 29 pre-launch schedule, which had listed a 2:55 a.m. IST liftoff.

ISRO identifies GSLV-F17 as the 19th flight of India's Geosynchronous Satellite Launch Vehicle and describes EOS-05 as an Earth-observation spacecraft. It says the satellite was placed in a sub-geosynchronous transfer orbit.

News On AIR, citing ISRO, reported that GSLV-F17 lifted off from the Second Launch Pad at Satish Dhawan Space Centre at 2:55 a.m. IST after a 27-hour countdown and placed the 2,367-kilogram EOS-05 payload into orbit about 18 minutes later.

The ISRO mission page and News On AIR report reviewed for this dispatch do not describe spacecraft commissioning, imagery delivery or entry into operational service, and neither gives dates for those milestones.

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