ISRO General News and Updates

power_monger

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Can we have a seperate sub-forum on ISRO and space related activities? With Isro blowing full guns,i feel that space exploration related topics will increase in number in comming days. Can we give a thought on this?
 

AVERAGE INDIAN

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National space agency ISRO has decided to launch one of its upcoming communication satellites, GSAT-16, six months earlier than planned.

The 3,100-kg spacecraft, meant to support public and private television and radio services, large-scale Internet and telephone operations, was originally planned to be flown up around June 2015 on a European Ariane-5 launcher.

The decision to advance GSAT-16 launch came after the older INSAT-3E expired in March this year, according to ISRO Chairman K. Radhakrishnan.

The plan to move an ISRO mission ahead is almost unprecedented. "GSAT-16 will replace INSAT-3E [in the same space orbit at 55 degrees East longitude]. It was planned to be launched in the middle of 2015. After 3E was decommissioned in April, we advanced GSAT-16, which will now go in December this year," he told The Hindu recently.

The assembly venue in Bangalore, the ISRO Satellite Centre or ISAC, is ready with the spacecraft. "Advancing a satellite by five to six months is a difficult job, but we did it. We also got a slot from Arianespace (launch company) and as of now, we are talking of a launch (around) December 6," he said. An earliest launch would otherwise have been April 2015.

GSAT-16 will offer 24 transponders in the C-band, 12 in the extended C-band and another 12 in the Ku band.

Transponder shortfall

Over the last couple of years, the space agency has been trying hard to augment transponder capacity — which is about 190 on its own fleet — to meet increasing demand from commercial and public service users. It also had to lease 90 transponders on foreign satellites to meet its shortfall.

Last year, the government approved an allocation of Rs. 865.5 crore towards building GSAT-16, the fee for its foreign launch and insurance; the latter is taken when ISRO uses a foreign launch.

ISRO had to opt for an outside launch as Indian rockets PSLV and the present GSLV cannot lift satellites weighing above 2,000 kg. ISRO is developing the next big launcher, GSLV-MkIII, which can put satellites of up to 4 tonnes in orbit.

The first test flight of MkIII is to be taken up after the ongoing Mars Orbiter Mission reaches its crucial milestone, that of orbiting Mars, on September 24.3

ISRO advances GSAT-16 launch by 6 months - The Hindu
 

Srinivas_K

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Hope to be first Asian country to reach Mars in first shot: Isro chair

Hope to be first Asian country to reach Mars in first shot: Isro chairman K Radhakrishnan

India's 50-year-old space odyssey will start a new chapter this week when an indigenously built spacecraft — affectionately called MOM (Mars Orbiter Mission) — attempts to enter the orbit around the Red Planet after a 680-million-km journey. The orbiting mission will take pictures and collect scientific data for about six months. The most nail-biting phase will begin early Wednesday when it executes the crucial Mars orbit insertion, a stage at which most missions have failed. Isro chairman K Radhakrishnan speaks about the challenge ahead.

With 72 hours left for the crucial Mars orbit insertion, how do you describe the level of anxiety among your colleagues?

There is no question of nervousness or tension. We have to stay cool and be prepared for any contingency.

How optimistic are you about the success of the mission?

We have done everything to make sure it succeeds. The spacecraft's propulsion system will play a major role during its entry to Mars. For this purpose we have tested the 440N liquid apogee motor for prolonged periods under a simulated environment and it performed flawlessly. But, then it has to restart in a real Martian environment on Wednesday. This will be a major challenge. To check on the state of this engine we will fire it for a mere four seconds at 2.30pm on Monday. If this is successful our team will have a high level of confidence about the orbit insertion. The spacecraft and its five payloads are in good health and checked regularly.

READ ALSO: For Mars mission experts, safe mode means danger




Cops look at miniature rocket displayed at Jawaharlal Nehru planetarium during the inauguration of the 'Indian march to Mars', a festival in Bangalore. (TOI photo)


What happens if by chance the liquid apogee motor fails during Monday's small test?

Then we will be activating Plan B, which means firing only the eight thrusters of the spacecraft. For the Mars capture, the speed of the spacecraft has to come down from 22.1km per second to 4.4km per second in relation to Mars.

Your team has mixed feelings about Plan B because some believe that it could compromise the profile of the mission.

The implementation of Plan B will result in a new and larger orbit as the eight thrusters will fire for a longer period of time. I will not be disappointed because it is possible some new science may come out of it. Let's just wait and watch. Basically, our mission is to demonstrate that we have the capability to capture the Martian orbit and once this happens on Wednesday we can declare we have been successful. We will be the first Asian nation to have reached Mars in the first shot itself.

This is the cheapest mission at $71 million (Rs 450 crore). Even 'Gravity', the space film, cost $100 million. You also fast-tracked the project in a record 15 months. How did Isro accomplish this?

The rocket was already ready -the Polar Satellite Launch Vehicle -so that saved both MONEYand time. Also, some of the spacecraft's sub-systems were similar to those used by other spacecraft. These were some key factors that contributed to making it an inexpensive mission. Also, labour costs are low in India. As for the fast-tracking, all I can say is our team of young, dedicated scientists slogged almost 24x7 to achieve it.

Two spacecraft will arrive at Mars almost simultaneously — Nasa's $671-million Mars Atmosphere and Volatile Evolution Mission on Monday and India's MOM two days later. Will there be any collaboration between the two?

There is a lot of contact between scientists of the two space agencies. Nasa's three ground stations at Goldstone in California, Madrid in Spain and Canberra in Australia have backed our mission and will monitor our orbit insertion. Since there will be complementary data from the two missions, scientists from both countries will collaborate to evaluate the information.

READ ALSO: India gears up to put Mars mission in orbit

How will this Wednesday change how India looks at space research and science in general?

The entire nation has been with us on this mission and its success will make every Indian proud. It will also help inspire the younger generation take up science, technology, math and engineering.

Hope to be first Asian country to reach Mars in first shot: Isro chairman K Radhakrishnan - The Times of India
 

cobra commando

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India to develop remote sensing satellites with China

BANGALORE: India will, for the first time, join hands with China to develop remote sensing satellites. Indian Space Research Organisation (Isro) chairman K Radhakrishnan told TOI that an agreement in this regard was signed two days ago. Right from the initial days of its space programme in the 1960s, India had collaborated with the US, USSR (now Russia) and some European countries, but Isro never had a tie-up with China. Radhakrishnan said space scientists of the two countries would work together to prepare a roadmap for a series of missions to be implemented together. "A joint team will begin work in the coming weeks and the road map will be ready by April 2015." The agreement aims at encouraging cooperation for "peaceful purposes", and a lot of emphasis will be on research and development, including in communication satellites. "We look forward to it as both the countries are crucial in creating a strong space presence in Asia. There were some steps in 1991, but nothing much happened. This is a concrete step forward," Radhakrishnan said. On areas of focus, the Isro chairman said remote sensing would be a natural choice since it has applications in disaster preparedness and management.
India to develop remote sensing satellites with China - The Times of India
 

Free Karma

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PSLV C26 stage-2 stacking completed.The launch window opens in October 2014.
Payload: IRNSS 1C navigation satellite.
 

kseeker

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'ISRO to Launch Navigational Satellite on Oct 10' - The New Indian Express

THIRUVANANTHAPURAM: ISRO will launch a navigational satellite from Sriharikota in Andhra Pradesh at 1.54 am on October 10, VSSC director M C Dathan has said.

Speaking at a function organised by the Thiruvananthapuram Press Club to felicitate the team of scientists from VSSC who were behind the successful Mars Mission, here on Saturday, he said the aim was to attain self-sufficiency in navigation by 2015. He said that even with the Mars mission being a success, there is the larger issue on what benefits the ordinary citizens would derive from the Rs 450-crore project. He said that majority of the ISRO missions were aimed at bringing the fruits of scientific pursuits for the benefit of people. Along with it, it has to continue conducting studies in space science.

''If we don't pursue space science we will be pushed behind by other countries,'' he said. Dathan said what India was doing now had already been done by some other countries fifty years back. He said that India would be sending Chandrayan II Mission in three years' time.

As of now, the country is depending on French satellite launch vehicles after paying hefty fees. With the completion of the new version of the GSLV, satellites weighing upto four tonnes could be launched from India. The Adithya Mission to study about Sun also will be launched in 3 years' time.He said that the support from various governments over the years have been of great help to ISRO's missions. Referring to the current Government, he said Prime Minister Narendra Modi was a real inspiration. He said the future of ISRO was safe as the young generation scientists being inducted from 2002 onwards were capable of carrying forward the great legacy. He said that the private industries also has been contributing immensely to ISRO. In the coming years, even private industries in the country would be able to produce launch vehicles like in United States. Scientists who had played a pivotal role in the Mars Mission explained to mediapersons about the challenges they had to overcome in the Mars Mission.

Scientists Anil Bhardwaj, S Somnath, S Ragesh, K Mohanlal, Arwamudhan also spoke. Around 25 scientists were felicitated on the occasion. Press Club president P P James presided.
 

pmaitra

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Many Many Congratulations ISRO ...

You reached in space while I was sleeping ..

And what a good news to begin this day with...
Good morning Bhadra-ji.

You woke up to good news. :)
 

Bhadra

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Good morning Bhadra-ji.

You woke up to good news. :)
Very Good morning...

Such a good news is equivalent to a good Samadhi..... pleasure...

The thought of Brahmos and other guided munitions immune to interference due to IRNSS is joyful ... now our SF will be able to bring destruction on many targets without being detected by others... what a good thought ......

I want Dawood and Hafiz Sayid ..

ISRO successfully launches IRNSS 1C navigation satellite
 

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