ISRO Navigation Satellite

ISRO, Indian Space Research Organisation is all set to launch the eighth Navigation satellite IRNSS-1H today at 7 PM. The launch will take place at the Satish Dhawan Space Centre in Sriharikota space center, Andhra Pradesh.

IRNSS-1H is going to replace IRNSS-1A, which was the first satellite of the system. Now, this is a navigation satellite mainly aimed at providing position, navigation or for tracking the position of things attached to a receiver.

The space agency informed that “The 29-hr countdown operations of the PSLV-C39/IRNSS-1H mission have started on Wednesday at 14:00 hours IST.”

Now the rocket launch is taking place due to the failure of atomic clocks. Failure of parts of a satellite occurs in a rare condition. The lifetime of a satellite will be decided by the organization, and the manufacturers produce the parts according to the requirement. Replacement of parts for a satellite is not possible because it is placed in space.

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This is the first time that private sector had given an opportunity to assemble and test the parts of the satellite. Under the supervision of ISRO scientist, the manufacturing process takes place. A consortium guided by Bengaluru-based Alpha Design Technologies completed 25% of the development work of IRNSS-1H, under the guidance of ISRO scientists.

A S Kiran Kumar, ISRO chairman said, “For the first time, a private company has been involved in the integration of a satellite. Progressively, we will engage more and more companies in satellite assembly activities.” Subsystems of the payload and launch vehicle are already being developed in collaboration with the industry.

Tapan Misra, director of Ahmedabad-based Space Applications Centre, said, “We need to know the position of a satellite to find the position of an object on earth and to find a satellite’s position, we have to measure it with the help of time. To find the satellite’s position with an accuracy of 0.5 meters, atomic clocks are therefore used for precise timing.”

He added that “When the time signal is missing, getting true positional accuracy becomes a problem. Poor the accuracy of these atomic clocks, less the accuracy of the distance calculated.” The launch is 29-hour countdown assignment, and it will take place today at 7 PM. Another proud moment to Indians as India is taking steps towards development.

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