ISRO launched the 2,367 kg EOS-05 on GSLV-F17 from Sriharikota on September 4, giving India its first imaging satellite built to observe from geosynchronous orbit.

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• ISRO launched the GSLV-F17/EOS-05 mission at 2:55 AM IST on September 4, 2026, from the Second Launch Pad at Sriharikota.
• EOS-05, also known as GISAT-1A, is an Earth observation satellite with a launch mass of 2,367 kg.
• It is India's first imaging satellite designed to operate from geosynchronous orbit, at an altitude of about 36,000 km.
• GSLV-F17 placed the satellite into a sub-geosynchronous transfer orbit, from where onboard propulsion will raise it to its final position.
• GSLV-F17 is the 19th flight of the Geosynchronous Satellite Launch Vehicle, standing 51.7 metres tall with a lift-off mass of 420.5 tonnes.
• The rocket uses an indigenous cryogenic upper stage and a four-metre ogive payload fairing.
• From geosynchronous orbit, the satellite stays fixed over one region and can image the Indian subcontinent roughly every 30 minutes.
• For priority targets such as cyclones or sudden weather shifts, the revisit interval can drop to about five minutes.
• Intended applications include agriculture, water resources, urban planning, forestry, ocean resources and environmental monitoring, plus flood and forest-fire tracking.
• EOS-05 revives a mission lost in 2021, when the earlier GISAT-1 failed after a cryogenic stage problem on GSLV-F10.
• Continuous regional imaging from geostationary height is expected to strengthen India's disaster monitoring and near-real-time observation capability.