29-hour countdown begins for navigation satellite launch

  |   India News

The Indian Space Research Organisation (Isro) said on Wednesday that the 29-hour countdown for the launch of the latest navigation satellite the IRNSS-1H, which will join the Indian Regional Navigation Satellite System (IRNSS) constellation, started at 2pm.

The satellite, which will be launched from the second launch pad of the Satish Dhawan Space Centre in Sriharikota on Thursday, will serve as a replacement to the IRNSS-1A, all three of whose atomic clocks have failed.

"Such failures have occurred even in Russia's Glonass and a similar programme of the European Space Agency," an Isro official said.

The 1,425-kg satellite will be launched aboard PSLV-C39, which is scheduled to take off at 7pm on Thursday.

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