Published: Thu, April 12, 2018
Global | By Marsha Munoz

ISRO to launch another satellite tomorrow; here are more details

ISRO to launch another satellite tomorrow; here are more details

It was a normal lift-off, ISRO officials said.

On the concerns raised by the Comptroller and Auditor General (CAG) on the navigation satellite system, Sivan said with the launch of IRNSS-1I, the system was now put in place and the applications would have to be rolled out.

Prime Minister Shri Narendra Modi has congratulated the scientists of ISRO on the successful launch of the navigation satellite IRNSS-1I.

The 1,425 kg IRNSS-1I was the second satellite sent up as replacement for IRNSS-1A and the ninth of the IRNSS satellite series.

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In August a year ago, the previous mission of a PSLV carrying IRNSS-1H failed after the heat shield covering the satellite failed to separate.

IRNSS-1I is the eighth satellite to join ISRO's NavIC navigation satellite constellation. So far, Isro has developed and built satellites, spacecraft and rockets on its own, while depending on firms such as Godrej, Larson and Toubro and Bharat Electronics for systems and sub-systems. Rubidium atomic clocks are part of the navigation payload of the satellite. "The power system configurations and the heritage of the IRNSS 1I is light weight, compared to that of the GSAT 6A, which was a heavy weight communications satellite", Mr Sivan said.

PSLV-XL rocket which was carrying the IRNSS-1I.

The navigation payload, operating in L5-band and S-band, will transmit navigation service signals to the users, while the ranging payload consists of a C-band transponder, which facilitates accurate determination of the range of the satellite. IRNSS-1L reportedly also carries Corner Cube Retro Reflectors for laser ranging. The space agency plans to install signal receivers on the ground, which will give weather alerts to fishermen in the sea and will also help them in positioning. The former is for all users while the latter is an encrypted service only for authorised users.

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Indian Space Research Organisation (ISRO) is all set to gear up for a launch to boost its Navic fleet.

Till now, PSLV has successfully launched 52 Indian satellites and 237 customer satellites from overseas. This was a failure as the rocket's heat shield did not separate three minutes after lift-off and the satellite remained housed inside the heat shield.

The agency is building expertise among private firms to meet its need of 70 large communication and earth observation satellites in the next five years and tap a global satellite market explosion.

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