ISRO Successfully Launches ‘Replacement’ Navigation Satellite

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Sriharikota: Indian Space Research Organisation (ISRO) on Thursday successfully launched the Indian Regional Navigation Satellite System-1I or IRNSS-1I”>IRNSS-1I from Satish Dhawan Space Centre on Sriharikota Island.

The satellite was launched with PSLV-C41 rocket at 0404 hrs. The IRNSS-1I”>IRNSS-1I will replace the IRNSS-1A which was rendered ineffective as the onboard atomic clocks had failed.

The launch will be ISRO’s second attempt at sending a replacement satellite. The previous mission of a PSLV carrying IRNSS-1H in August last year failed after the heat shield covering the satellite failed to separate.

IRNSS-1I is expected to replace IRNSS-1A, the first of the seven navigation satellites, that was rendered ineffective after its three rubidium atomic clocks failed. The seven satellites are part of the NavIC navigation satellite constellation.

“India’s Polar Satellite Launch Vehicle, in its forty-third flight (PSLV-C41) in XL configuration will launch IRNSS-1I Satellite from First Launch Pad (FLP) of SDSC (Satish Dhawan Space Centre), Sriharikota,” the ISRO said.

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