ISRO successfully launches replacement navigation satellite

PSLV-C40 carrying Cartosat series along with 30 other satellites lifts off from first launch pad at Sriharikota

PSLV-C41/IRNSS-1I Mission is scheduled to be launched on Thursday morning at 04:04 AM.

On the status of the recently launched GSAT-6A satellite that lost communication link soon after it was put into orbit, Sivan said the space agency was able to locate the satellite and track its movements.

The countdown began at 8:04pm IST on Tuesday.

Indian Space Research Organisation (Isro) today successfully launched navigation satellite INRSS-1I aboard its Polar Satellite Launch Vehicle (PSLV) from the Satish Dhavan Space Centre (SDSC), at Sriharikota, in Andhra Pradesh.

In July 2016, all three atomic clocks on the very first satellite, IRNSS-1A failed. It will provide navigation, the time stamp of people and objects as well as provide accurate information about the position as well.

The IRNSS is similar to those of other countries, like the US' Global Position System (GPS), the Russian Glonass, China's BeiDou and Europe's Galileo.

GSAT-29 is configured around ISRO's enhanced I-3K Bus and will be the payload for second developmental flight of GSLV-MkIII-D2. A live video feed from the PSLV's fourth stage showed the 3,141-pound (1,425-kilogram) spacecraft flying away from the rocket.

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The Rs. 1,420-crore Indian satellite navigation system NavIC consists of nine satellites - seven in orbit and two as substitutes.

This launch was Isro's second attempt at sending a replacement satellite.

IRNSS-1I is the eighth navigation satellite to join the IRNSS space segment. The IRNSS-1A was left ineffective after its Rubidium atomic clocks failed. It operates in L5-band and S-band. IRNSS-1L also carries Corner Cube Retro Reflectors for laser ranging.

The PSLV took off at 2234 GMT (6:34 p.m. EDT) with a rush of flame from a solid-fueled core motor and four strap-on solid rocket boosters.

People can use these services which are provided through a software application on a smart phone. He said the industry has to make the necessary products so as to use the navigation satellite system. The Indian space agency said NavIC is also used for other applications like location-based services, survey and alignment, time synchronised services.

IRNSS provides standard positioning service (SPS) for all users with a position accuracy of better than 20 metres and a restricted service (RS) for authorised users with an accuracy of 10 metres.

The previous mission of a PSLV carrying IRNSS-1H in August a year ago failed after the heat shield covering the satellite failed to separate (See: Isro's IRNSS satellite launch fails). The satellite remained inside the nose shroud after the rocket reached a lower-than-planned orbit.

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