EOS-09 mission: Why failure of Isro’s PSLV launch is so rare

The Indian Space Research Organisation (Isro) faced a setback on Sunday (May 18) after its 63rd PSLV mission to launch the EOS-9 surveillance satellite failed. The mission aimed to place an Earth observation satellite in a sun-synchronous polar orbit at an altitude of about 597 km. Since its debut in 1993, the PSLV has faced only two failures during launch – the first time in 1993 and again in 2017

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