Never miss a story

Get subscribed to our newsletter


×

Chennai: The 48-hour countdown for the launch of Polar Satellite Launch Vehicle (PSLV-31), the first one in 2016 began at 9.31 AM on Monday, informed the senior ISRO officials. The PSLV-31 is currently the country’s fifth navigation satellite as the sole passenger.

“The 48-hour countdown for the launch of rocket Polar Satellite Launch Vehicle (PSLV-31) carrying Indian Regional Navigation Satellite System-IRNSS-1E began in the Sriharikota rocket port in Andhra Pradesh,” a senior official at Indian Space Research Organisation (ISRO) told IANS.


The rocket is expected to blast off at 9.31 AM on January 20 to put into orbit the 1,425 kg IRNSS-1E satellite.

Till date India has launched four regional navigational satellites (IRNSS-1A, 1B, 1C and ID) as part of a constellation of seven satellites to provide accurate position information service to users across the country and the region, extending up to an area of 1,500 km.

Though the full system comprises of nine satellites — seven in orbit and two on the ground as stand-by — the navigation services could be made operational with four satellites, ISRO officials had said earlier.

Each satellite costs around Rs 150 crore and the PSLV-XL version rocket costs around Rs 130 crore. The seven rockets would involve an outlay of around Rs 910 crore.

The entire IRNSS constellation of seven satellites is planned to be completed in 2016 itself.

The first satellite IRNSS-1A was launched in July 2013, the second IRNSS-1B in April 2014, the third on October 2014 and the fourth on March 2015.

Once the regional navigation system is in place, India need not be dependent on other platforms.

According to ISRO, IRNSS-1E carries two types of payloads — navigation and ranging payloads. The navigation payload of IRNSS-1E will transmit navigation service signals to the users. This payload will be operating in L5-band and S-band. Also, a highly accurate Rubidium atomic clock is part of the navigation payload of the satellite.

The ranging payload of IRNSS-1E consists of a C-band transponder (automatic receivers and transmitters of radio signals) which facilitates accurate determination of the range of the satellite.

IRNSS-1E also carries Corner Cube Retro Reflectors for laser ranging.

On January 20 at 9.31 AM the PSLV-XL version rocket standing 44.4 metres tall and weighing 320 ton would blast off from India’s rocket port at Sriharikota.

Just over 19 minutes into the flight, the rocket would put into orbit IRNSS-1E at an altitude 503.3 km.

The satellite’s lifespan is 12 years, the ISRO official said.

The Indian space agency’s mission readiness review committee (MRRC) and the launch authorisation board (LAB) on Sunday gave the green signal for the Wednesday’s rocket launch. (picture courtesy: trvnews.com) (IANS)


Popular

getty pictures

Divorce proceedings

Divorce is a hard fact in someone's life because it can affect all aspects of life like social, economic, and living status. Conditions become tougher if you have children. Recovering from divorce is also a painful process but good thing is that it is possible to get through it and place better in terms of both finances and emotions. The impact of divorce on finances can be life-lasting but taking precautions and thorough investigations of options can help a lot not only to save unnecessary costs but also some other hidden areas where you weren't aware. Following are some tips to save money during a divorce.

1.Avoid advice from everyone

Keep Reading Show less
ryunosuke kikuno/unsplash

Hosting the Olympics is an economic burden on host cities which mainly include construction delays, cost overruns, security issues, and environmental concerns.

By Saish

Gone are those days when people, sports enthusiasts, and governments lined up to host the Olympics. Hosting the Olympics, once seemed to be an immensely prideful event, but it has now transformed into an economic burden. Host cities grapple with a plethora of problems which mainly include construction delays, cost overruns, security issues, and environmental concerns.

Keep Reading Show less
ians

Tokyo Olympics 2020 Indian wrestler Ravi Kumar enter semi finals.

Indian wrestler Ravi Kumar (57kg) and Deepak Punia (86kg) enjoyed fruitful outings at the Tokyo Olympic Games as they secured semifinal berths in their respective weight categories at the Makuhari Messe on Wednesday.

On the opening day of the wrestling competition, Ravi Kumar defeated Bulgaria's Georgi Vangelov 14-4 on technical superiority to reach the last-four in the men's 57kg category, while compatriot Deepak Punia overcame China's Zushen Lin 6-3 on points to advance to the semifinals.

Ravi Kumar will take on Nurislam Sanayev of Kazakhstan in the last-four, while Punia will be up against David Morris Taylor of the USA.

Earlier, Ravi Kumar had won his opening-round bout by technical superiority against Colombia's Oscar Tigreros to secure a quarterfinal spot. Competing in the Round-of-16 bout against the Colombian wrestler, the 23-year-old Ravi Kumar, who is making his Olympic debut, showed no nerves as he dominated the bout to win by technical superiority (13-2).

Ravi Kumar landed attack after attack and went 13-2 up, winning the bout by technical superiority with minutes to spare. In wrestling, building up a 10-point lead over the opponent results in a victory by technical superiority.

India's 86kg freestyle wrestler Deepak Punia showed no signs of the niggle that had forced him to pull out of the Poland Open Ranking Series in Warsaw in June, as he defeated Nigeria's Ekerekeme Agiomor on technical superiority to secure a quarterfinal berth.

He got his Olympic campaign to a fine start as he was in control from the start of the bout and hardly ever allowed his Nigerian opponent any room to maneuver his moves, finally winning with a 12-1 on technical superiority.

Punia, who had also suffered an elbow injury just before the Games, was slow at the start but came into his own as the bout progressed, inflicting takedowns at regular intervals to earn points.

The Indian wrestler eased into a 4-1 lead at the break and extended his lead comfortably in the second period.

Punia, the silver medallist from the 2019 world wrestling championships, then set up a clash with China's Lin Zushen in the quarterfinals and defeated him 6-3.

(IANS/HP)