ISRO successfully launches replacement navigation satellite

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ISRO successfully launches replacement navigation satellite

The Indian Space Research Organisation (ISRO) launched the IRNSS-II navigation satellite, the eighth such satellite to be a part of a constellation, from Sriharikota in Andhra Pradesh on Thursday. The launch is ISRO’s second attempt at sending a replacement satellite.

PSLV-C41/IRNSS-1I Mission blasted off at 4.04 AM from the first launchpad at the Satish Dhawan Space Centre (SDHC). It was a normal lift-off, ISRO officials were quoted as saying by PTI.

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.

In August last year, ISRO attempted to send a replacement satellite but the mission of the PSLV carrying IRNSS-1H failed after the heat shield covering the satellite did not succeed in separating.