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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Agencies
February 16,2020

Lucknow, Feb 16: Resident doctors at the AMU's Jawaharlal Nehru Hospital on Sunday demanded that the charges slapped against Dr Kafeel Khan under the National Security Act be withdrawn.

Dr Khan was arrested by the UP Special Task Force from Mumbai on January 29 in connection with a speech he had delivered during an anti-CAA protest at Aligarh Muslim University on December 12.

The Resident Doctors' Association (RDA) held a protest march on the hospital campus against the slapping of the NSA against the Gorakhpur doctor after he was granted bail in connection with the alleged hate speech.

RDA president Dr Hamza Malik said the move was a "blatant attempt to crush dissent and a violation of the Constitution of india".

He said by targeting the doctor, the UP government had done a great disservice to the entire medical community.

The AMU Students' Coordination Committee also described the decision to charge Dr Kafeel under the NSA a "direct assault" on a member of the medical fraternity who is "known for his upright behaviour and a champion of free speech".

Committee spokesperson and former AMU Students' Union president Faizul Hasan said by charging Dr Kafeel under the NSA even after he got bail was "a direct violation of a Supreme Court ruling on such issues".

Hasan said Dr Kafeel's fate should serve as an eye-opener for the rest of the country regarding the democratic rights in Uttar Pradesh.

The doctor was earlier arrested for his alleged role in the death of over 60 children within an week at the BRD Medical College in Gorakhpur in August 2017. Short supply of oxygen at the children's ward was blamed at that time for the deaths.

About two years later, a state government probe cleared Khan of all major charges, prompting him to seek an apology from the Yogi Adityanath government.

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News Network
April 27,2020

New Delhi, Apr 27: Prime Minister Narendra Modi on Monday held a video conference with chief ministers to discuss the situation arising due to the coronavirus pandemic in the country, which has been under a lockdown since March 25 to contain the spread of the virus, amid indications that the interaction would also focus on a graded exit from the ongoing lockdown.

This is Modi's fourth such interaction with state chief ministers since March 22 when he discussed coronavirus situation and steps taken both by the Centre and the states to contain the pandemic.

Two days later on March 24, Modi announced a 21-day nationwide lockdown. He extended the lockdown by 19 days on April 14, the last day of the initial three week shutdown, till May 3.

Sources in the government had on Sunday indicated that besides discussing the way forward in dealing with the pandemic, the prime ministers and chief ministers could also focus on a "graded" exit from the lockdown.

In a tweet on Monday, the Prime Minister's Office said Modi and the chief ministers will be discussing aspects relating to the COVID-19 situation.

In his monthly 'Mann ki Baat' radio address on Sunday, the prime minister said the country is in the middle of a 'yudh' (war) and asserted that people have to continue being careful and take precautions.

His note of caution came amidst gradual exemptions being granted by the Centre and states to revive economic activities.

"I urge you not to get overconfident. You should in your over-enthusiasm not think that if the coronavirus has not yet reached your city, village, street or office, it is not going to reach now. Never make such a mistake. The experience of the world tells us a lot in this regard," Modi said while referring to a popular Hindi idiom 'Sawdhani hati, durghatna ghati' (disaster strikes when you lower your concentration).

The Centre and the state governments have been giving gradual exemptions to boost economic activities as also to provide relief to people as some states want further relaxation in areas which have seen few or no coronavirus cases.

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News Network
March 18,2020

Mar 18: Madhya Pradesh Congress Party sought in the Supreme Court on Wednesday that the trust vote in the state assembly be deferred till by-polls for the vacant seats are concluded, saying "heavens are not going to fall" if its government led by Kamal Nath is allowed to remain in office till then.

A bench, comprising Justices D Y Chandrachud and Hemant Gupta, was hearing cross petitions filed by former Madhya Pradesh Chief Minister and senior BJP leader Shivraj Singh Chouhan and MP Congress on the ongoing political crisis in the state after 22 rebel MLAs of the ruling combine purportedly offered to resign.

"Heavens are not going to fall if Congress government is allowed to continue till by-polls and the Shivraj Singh Chouhan's government must not be saddled on the people," said senior advocate Dushyant Dave, appearing for Congress.

"Let them face re-elections and then hold trust vote... You (BJP) have engineered it. My petition raises the frontal attack that you have launched a conspiracy," he said.

Senior advocate Mukul Rohatgi, appearing for Chouhan, vociferously opposed the submission saying that the party which killed the democracy by imposing emergency in 1975 is now referring to "lofty ideals" of B R Ambedkar.

He said that after the resignations of 22 Congress MLAs, out of which six resignations have been accepted, the state government should not be allowed to continue even for a day.

"It is lust of power because of which all these lofty arguments are being made.

"It is unheard of that a person who had lost majority says that he wants to continue for six months and there should be re-election before the trust vote.

Rohatgi said the Kamal Nath government wanted to stay in power by hook or crook.

Earlier in the day, the Madhya Pradesh Congress told the bench that a probe is needed on the resignation letters of its rebel MLAs that have been submitted by BJP leaders to the Speaker of the state Assembly.

Dave said the Governor has no business to send messages at night asking the Chief Minister or Speaker to hold floor test.

"The Speaker is the ultimate master and the Madhya Pradesh Governor is overriding him," he said.

The party alleged that resignations of its rebel MLAs were extracted by force and coercion and they did not act as per their free will.

It also said that its rebel MLAs were taken away in chartered flights and are currently incommunicado in a resort arranged by the BJP.

The advancing of arguments will resume after lunch.

The Madhya Pradesh Congress Legislature party (MPCLP) had Tuesday moved the Supreme Court seeking direction to the Centre and the BJP-led Karnataka government to grant it access to communicate with its rebel MLAs allegedly kept at Bengaluru.

Earlier on Tuesday, the court had asked the Kamal Nath government in the state earlier in the day to respond by Wednesday to a plea by senior BJP leader Shivraj Singh Chouhan seeking immediate floor test in the Assembly.

MPCLP, in its plea filed by Govind Singh, an MLA and chief whip of Congress legislature party, urged the apex court to declare as illegal the action of the Centre, Karnataka government and the MP BJP of illegally confining its MLAs in Bangaluru.

The plea, filed through senior lawyer Devdutt Kamat, said the trust vote would be a "sham" if 22 MLAs did not take part in it as almost 10 per cent of constituencies go unrepresented.

The plea filed by Chouhan and nine BJP lawmakers was moved in the top court just after the Speaker cited coronavirus concerns and adjourned the House till March 26 without taking the floor test apparently defying the directions of Governor Lalji Tandon.

The plea alleged that the Speaker, the Chief Minister and the Principal Secretary of the Assembly have "flagrantly violated the constitutional principles and have deliberately and wilfully defied the directions" issued by the governor asking the government to prove the majority on the floor of the house on March 16 when when the budget session was to commence.

On Saturday night, Tandon wrote to Nath asking him to seek a trust vote in the Assembly soon after the Governor's address on Monday, saying his government was in minority.

After the Speaker accepted the resignation of six Congress MLAs on Saturday, the party now has 108 legislators.

These include 16 rebel legislators who have also put in their papers but their resignations are yet to be accepted.

The BJP has 107 seats in the House, which now has an effective strength of 222, with the majority mark being 112.

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