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ISRO to develop replacement GPS for better accuracy

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Kolkata: India’s indigenous position determination system being developed by national space agency ISRO will serve as a “replacement GPS” for the public with enhanced access in remote areas, an official said here on Saturday.

It will also aid in navigation and monitoring of fleet (trucks and ships) movement, the official added.

“We will have our own position determination system using our own navigation constellation, the IRNSS series which will be operational by middle of next year. It is a kind of replacement GPS,” said Deviprasad Karnik, the director, publication and public relations, ISRO.

“The US is offering the GPS navigation. IRNSS is indigenous”, he added while talking to reporters here on the sidelines of a lecture on India’s Space mission and use of Space Technology as a solution to Sustainable challenges of Kolkata at Birla Industrial and Technological Museum.

Four of the seven satellites in IRNSS constellation (IRNSS-1A, 1B, 1C, and 1D) are in orbit. Remaining three satellites (IRNSS-1E, 1F and 1G) are targeted for launch during January 2016 to March 2016, he said.

“Once the constellation is completed, we need some time to establish the accuracy part, validation and other things. The advantage is that the navigation range has been designed to span around 1,500 km radius around India,” he said.

“GPS is not available at all places. Signal is weak in remote areas but our own signal will be available in remote areas with better accuracy.”

As an example of the app-based positioning service, Karnik said, it will help in effective management of fleet movement.

“Monitoring and effective management of fleet of trucks or ship monitoring will be done through spacecraft. For example, for ships the system can inform which route will be more effective. That will save time and fuel,” he said.

(IANS)

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Chandrayan-2 Expected to be Launched in Early 2019

ISRO would have two missions Chandrayan-2 by GSLV Mark 3 and the PSLV P45 launching RA-SAT 2B next year.

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Chandrayaan-2 to be launched in January-March window in 2019 Pixabay
Chandrayaan-2 to be launched in January-March window in 2019 Pixabay

India’s second moon mission Chandrayaan-2 will now be launched in the January-March window in 2019 instead of later this year as the design was changed to enable it land on the lunar surface, a top ISRO official said here today.

“We have planned to launch Chandrayaan mission in January 3. We are fixing with that (date) and targeting that. But that is an open window. We can go up to March also. As we are coming closer (the date), we may miss the target,” he said.

The reason for postponing the mission was that there were certain important changes made in the design so that it could easily land on the lunar surface, he said.

He was speaking on the sidelines of a function, where bust of Dr Vikram Sarabhai, the architect of the Indian space mission, was unveiled.

Asked why the weight of Chandrayaan-2 was increased by 600 kg, he said ISRO noticed during experiments that after the moon lander was ejected, the satellite would shake. So they decided that the design modification was required for landing and mass has to be increased.

Chandrayan 2
The reason for postponing the mission was that there were certain important changes made in the design so that it could easily land. Flickr Commons

“We also realised that the orbiter required more phases, which required more fuel,” he told reporters.

On the space agency’s future missions, Sivan said ISRO also plans to launch 50 satellites in the next three years.

the space agency would launch 22 satellites in 2019, the maximum in any year in the history of ISRO, he said.

“Next year from February to December we plan to have 22 missions with almost two missions per month, which is a very important activity. This tight schedule of programmes we are doing for the first time.

We have set a target.We may not be able achieve but we are targeting it. So many missions in a year is a huge target for the first time in the history of ISRO,” Sivan said.

The remaining months of 2018 would also be very hectic for ISRO as it plans to launch at least two missions every month, he said.

“Our next mission is PSLV C42, which will launch NOVASAT and S1-4. These two satellites are commercial satellites from the U.K.It is a commercial mission and is planned in September. Subsequently we have two missions each month,” the ISRO chief said.

ISRO
India’s second moon mission Chandrayaan-2 will now be launched in the January-March window in 2019. Flickr

In October this year ISRO would launch GSAT29 for the Digital India programme and hyper spectrum imaging satellites along with 30 commercial satellites, Sivan said.

The following month GSAT-7A will be launched, while in December there would be two missions,GSLV-F11 launching AMISAT and GSAT-31, a replacement for INSAT 4CR, whose life will get over by January, he said.

ISRO would have two missions Chandrayan-2 by GSLV Mark 3 and the PSLV P45 launching RA-SAT 2B next year.

The focus area of these launches was to enhance the communication so that rural India gets high bandwidth data connectivity, somewhere between 80 GBPS to 100 GBPS, he said.

Also Read: A Dozen New Moons Found Orbiting Jupiter

Asked about GSAT 6A, with which communication had been lost after its launch in March 31 this year, he said ISRO has not given up hope and was still trying to establish radar contact with the satellite.

“We have not given up hope. We will wait till a year,” he said when asked how much time ISRO would take to announce that the GSAT 6A was a failed mission. (IANS)

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