Today ISRO to launch the sixth navigation satellite

Space Research Organization India's 6th satellite navigation IRNSS-1F, on board PSLV-C32 takes off from the spaceport Sriharikota.

Indian Space Agency satellite navigation sixth IRNSS-1F ISRO is all set to be launched aboard workhorse PSLV C32 confidence today at 4 pm.

The countdown of 54 and a half hour yesterday began shortly after the preparation for missions Review Committee and Council for approval and launch took today, is "progressing normally", ISRO officials said.

Polar Satellite Launch Vehicle-C32 in its mission 34 launch the IRNSS-1F, intended to provide navigation precision on par with the Global Positioning System based in the United States, from the Satish Dhawan Space Centre at the spaceport of Sriharikota about 110 km from here.

ISRO to provide independent regional satellite navigation system on par with GPS, he had launched five satellites for navigation under the Indian Regional Navigation Satellite System (IRNSS).

While four satellites would be sufficient to start operations IRNSS system, the remaining three would make it more "accurate and efficient," said an official at ISRO.

"With the launch of four satellites, we have been able to provide navigation for 18 hours. But after fifth release, increasing capacity to 24 hours with an accuracy of 20 meters. The sixth IRNSS-1F and seventh release (IRNSS-1G) to be accurate and more efficient, "an ISRO official PTI.

The five satellites already launched are IRNSS-1A on July 1, 2013, IRNSS-1B on April 4, 2014, IRNSS-1C on 16 October 2014, IRNSS-1D on March 28, 2015 and IRNSS-1E January 20, 2016.

ISRO scientists plan to put the seven navigation satellites into orbit in March 2016. The last in the series is expected to be released later this month.

For the launch IRNSS-1F, scientists have used the "XL" version used in previous IRNSS satellite launches, given its ability to carry cargo similar occasions in which rockets were used with the XL configuration were at the launch of Chandrayaan-1, Mars orbital mission, Astrosat addition to the five satellites IRNSS.

Along with the navigation payload and payload ranging, the satellite also carries a

"Rubidium atomic clock precision" with it. The payload will transmit signals of navigation services for users.

44.4 meters high IRNSS-1F has a takeoff weight of 1,425 kg and will be launched in sub-geosynchronous transfer orbit (GTO sub). It has a mission life of 12 years.