ISRO has announced the launch of Earth observation satellite EOS-05 on September 4, 2026, using the GSLV F17 rocket from Sriharikota. The launch will end the space agency’s seven-month operational hiatus after the failed PSLV-C62 mission in January.

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• EOS-05 is also known as GISAT-1A under the new satellite nomenclature system.
• The satellite will be launched using the GSLV F17 launch vehicle.
• The launch will take place from Sriharikota.
• EOS-05 is a replacement for GISAT-1/EOS-03, which failed to reach orbit in 2021.
• The earlier GISAT-1 mission failed after the cryogenic upper stage failed to ignite.
• A Failure Analysis Committee found that a malfunctioning valve caused insufficient pressure in the liquid hydrogen tank.
• EOS-05 is designed to image large areas of interest at frequent intervals.
• Its imagery will support natural disaster monitoring.
• The satellite will also be useful for monitoring agriculture and forestry.
• EOS-05 is designed with a 10-year mission life.
• ISRO had undertaken only one launch in 2026 before this upcoming mission, according to the report.
• The other satellite parked at the spaceport, NVS-03, is likely to be launched in November.
• The EOS-05 launch will mark the return of ISRO to operational launches after a seven-month gap.