India successfully launches communication satellite in textbook style

August 27, 2015

Sriharikota (Andhra Pradesh), Aug 27: India successfully launched its communication satellite GSAT-6, which has several strategic applications, in textbook style on Thursday using its heavy rocket geosynchronous satellite launch vehicle (GSLV-D6).gslv6

The GSLV rocket, with a cryogenic engine, slung the satellite in a geosynchronous transfer orbit (GTO) from where it would be taken up to its final geostationary orbit.

The successful flight of GSLV rocket gives the Indian space programme a much-needed booster as getting the more-efficient cryogenic engine (which provides more thrust for every kilogram of propellant burnt) right is important for its future space programmes.

Indian space scientists have spent around two decades in conceiving the cryogenic technology and spent around Rs.400 crore in developing it.

Precisely at 4.52 p.m., the Geosynchronous Satellite Launch Vehicle-Development 5 (GSLV D6) rose from the second launch pad here at Satish Dhawan Space Centre.

The 49.1 metre tall rocket weighing 416 tonnes slung the 2,117 kg GSAT-6 communication satellite in the geosynchronous transfer orbit (GTO) around 17 minutes into the flight.

As the whole mission concluded successfully, ISRO scientists at the mission control centre were visibly happy, back-slapping and hugging each other once the rocket ejected the GSAT-6 satellite into the intended orbit.

Speaking about the launch, ISRO chairman A.S.Kiran Kumar said: "Today's performance of launch vehicle was normal. The intricacies of cryogenic engine has been understood."

This is the first successful GSLV rocket launch that placed a satellite in orbit in Kiran Kumar's tenure.

The Indian space agency flew the GSLV rocket with its own cryogenic engine for the second time on Thursday after the successful launch of a similar rocket in January 2014 that put into orbit GSAT-14.

This was the second mission of GSLV during the last five years after two such rockets failed in 2010.

One of the GSLV rockets flew with Indian cryogenic engine and the other one with a Russian engine.

The GSLV is a three stage/engine rocket. The core of first stage is fired with solid fuel while the four strap-on motors by liquid fuel. The second is the liquid fuel and the third is the cryogenic engine.

For the country, ISRO's perfection of cryogenic engine technology is crucial as precious foreign exchange can be saved by launching communication satellites by itself.

Currently ISRO flies its heavy communication satellites by European space agency Ariane.

ISRO officials told IANS earlier that the country pays around $85-90 million or around Rs.500 crore as launch fee for sending up a 3.5 tonne communication satellites. The cost of satellite is separate.

The ISRO can send smaller communication satellites - weighing around two tonnes - till such time it gets ready an advanced GSLV variant-GSLV-Mark III- that can lug satellites weighing around four tonnes.

The space agency will be launching satellites like GSAT-7, 9 using a similar rocket.

One of the notable aspect of the successful launch is the rocket's weight lift capacity. The current GSLV rocket that ISRO flies has a carrying capacity of around 2.2 tonnes.

Earlier attempts to carry slightly over two tonne satellite ended in partial/total failures.

The GSAT-6 is India's 25th geostationary communication satellite and twelfth in the GSAT series.

Five of GSAT-6's predecessors were launched by GSLV during 2001, 2003, 2004, 2007 and 2014 respectively.

After its commissioning, GSAT-6 will join the group of India's other operational geostationary satellites.

The satellite provides communication through five spot beams in S-band and a national beam in C-band for strategic users.

One of the advanced features of GSAT-6 satellite is its S-Band Unfurlable Antenna of six metre diameter - the largest satellite antenna realised by ISRO. This antenna is utilised for five spot beams over the Indian mainland, which exploit the frequency reuse scheme to increase frequency spectrum utilisation efficiency.

The satellite's life expectancy is nine years.

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News Network
February 4,2020

New Delhi, Feb 4: Leader of Congress in Lok Sabha, Adhir Ranjan Chowdhury, on Tuesday attacked the BJP over Anantkumar Hegde's controversial remark on Mahatma Gandhi and termed the party as "Ravan ke aulad" (children of Ravana). "Aaj ye Mahatma Gandhi ko gaali dete hain. Ye Ravan ke aulad hain. Ram ke pujari ka ye apmaan kar rahe hain (Today, they abuse Mahatma Gandhi. They are children of Ravan. They are insulting Lord Ram's devotee)," Chowdhury said.

Later, BJP lawmakers object to Chowdhury's statement. Hegde, who is a Lok Sabha MP from Uttara Kannada, had on Saturday said that the freedom struggle led by Mahatma Gandhi was a "drama".

"None of these so-called leaders were beaten up by the cops even once. Their independence movement was one big drama. It was staged by these leaders with the approval of the British. It was not a genuine fight. It was an adjustment freedom struggle," Hegde had said while addressing a public event in Bengaluru. While several Congress leaders, including Karti Chidambaram and BK Hariprasad, have condemned Hegde's remark, BJP leaders too have distanced themselves from it.

Top leadership in BJP is unhappy with Anantkumar Hegde over his controversial remark on Mahatma Gandhi, party sources had said on Monday, adding that he has been asked to issue an unconditional apology.

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News Network
April 15,2020

New Delhi, Apr 15: CPI-M leader Sitaram Yechury has sought a substantial increase in relief spending of the Central government in the fight against coronavirus, saying that there should be cash transfer of Rs 7,500 to families not paying income tax and distribution of free foodgrains to all needy.

In an article in the forthcoming issue of the party's mouthpiece -- People's Democracy -- Yechury said that India ranks among the countries that are testing the least for the coronavirus and testing should be increased rapidly.

Yechury said the financial stimulus package should be raised from the current 0.8 per cent to at least 5 per cent of GDP and States should be provided liberal funding.

"We must ensure that there are no starvation deaths that occur in our country. It is, therefore, imperative that the government must immediately implement a Rs 7,500 ex gratia cash transfer to all non-income tax-paying families and resort to universal distribution of free foodgrains to all needy people," Yechury said.

He said all MGNREGA workers should be paid wages irrespective of work and employers should be assisted financially to protect workers from job losses and wage cuts and arrangement should be made for the return of migrant workers to their homes.

"Testing is of crucial importance to identify the clusters where the pandemic is spreading in order to isolate and insulate them to contain the community spread. Inadequate testing does not provide us with such information. It is dangerous both for the inability to contain the spread and to identify the critical areas," the article said.

It said that till April 9, India's record of testing was 0.092 per thousand, while in Germany it was 15.96, Italy 14.43, Australia 12.99, Denmark 10.73 and Canada 9.99. "Unless our testing rate increases substantially, our strength to combat the pandemic will not grow," the article said.

Yechury said that the first case in India was reported on January 30 and "no substantive measures were taken despite this for seven long weeks" until the declaration of the lockdown on March 24.

"As far as the lockdown is concerned, many countries in the world moved with greater urgency - China locked down Wuhan on January 23, the whole of Italy was locked down on March 10, USA declared a national emergency on March 13, Spain on March 14, France on March 17 and UK on March 23," he said.

Yechury said the people were looking forward to the Prime Minister's address to the nation on the last day of the three-week countrywide lockdown.

"These three weeks have thrown up many experiences that need to be addressed urgently in order, both, to strengthen our fight against the COVID-19 pandemic and to protect the lives and survival of crores of our fellow citizens. On none of these issues of vital importance did the Prime Minister have anything substantial to say," he said.

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Agencies
May 10,2020

New Delhi, May 10: Congress leader Rahul Gandhi on Saturday demanded that Prime Minister Narendra Modi ensured audit of donations made to the PM-CARES Fund, and to share the details and the money spent with the people.

"The PM-CARES Fund has received huge contributions from PSUs and major public utilities like the Railways. It's important that the Prime Minister ensure the fund is audited and that the record of money received and spent is available to the public," he tweeted.

The #PmCares fund has received huge contributions from PSUs & major public utilities like the Railways.

It’s important that PM ensures the fund is audited & that the record of money received and spent is available to the public.

— Rahul Gandhi (@RahulGandhi) May 9, 2020
His remarks came amid reports that the central government is accumulating a huge sum of money in the Prime Minister's Citizen Assistance and Relief in Emergency Situations Fund set up as a corpus to fight novel coronavirus and that the amount spent will not be audited by the Comptroller and Auditor General.

The CAG office had clarified that since the fund is based on donations, it has no right to audit a charitable organisation.

On Friday, Rahul Gandhi told the media that the PM-CARES Fund should be audited and people of the country should know about the donors and the donations made.

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