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
May 19,2020

May 19: Congress general secretary Priyanka Gandhi Vadra's office on Tuesday said the Uttar Pradesh government has demanded that the 1,000 buses the party wants to ply for ferrying migrant labourers back to the state be handed over in Lucknow this morning and alleged that the move is politically motivated.

It also alleged that the demand shows that the UP government lacks the intention to help those stranded at the state's borders.

The Uttar Pradesh government on Monday had accepted the Congress' offer to run 1,000 buses to bring migrant labourers back to the state, a proposal which had triggered a war of words between the two sides.

In a letter to Additional Chief Secretary Avneesh Kumar Awasthi, Priyanka Gandhi's private secretary Sandeep Singh said a letter was received from the UP official at 11.40 am via email, in which it has been stated that 1,000 buses with all documents be handed over at Lucknow by 10 am on Tuesday.

"In a situation when thousands of workers are walking on the streets and thousands of people have gathered at the UP borders at various registration centres, sending 1,000 empty buses to Lucknow is not only a waste of time and resources but is also inhuman and the product of an anti-poor mindset," Singh said in the letter in Hindi.

"This demand of your government seems politically motivated. It does not seem that your government wants to help our labourer brothers and sisters who are facing a disaster," the letter said.

The state government had asked Priyanka Gandhi, who had made the offer, to provide it with a list of buses along with the names of their drivers and conductors.

Subsequently, her private secretary Singh had given details of the buses and its drivers to the UP government in an email.

"All details of the 1,000 buses are attached with this e-mail. Out of them, a few drivers will be reverified and those details will also be mailed to you in a few hours. I hope you will give permission for those buses to ply as soon as possible," Singh had said in the communication to the UP government on Monday.

The Congress leader had recently written to Uttar Pradesh Chief Minister Yogi Adityanath, seeking permission to run 1,000 buses at her party's expense.

The party had then accused the BJP-run UP government of ignoring the offer.

"The offer made to the chief minister through the letter on May 16 in connection with migrant labourers has been accepted," Additional Chief Secretary Awasthi (Home and Information) had said in a letter to Priyanka Gandhi's private secretary.

A little later on Twitter, Priyanka Gandhi, who is the Congress general secretary in charge of eastern Uttar Pradesh, had thanked Adityanath.

"Thank you for allowing us to run 1,000 buses at the expense of the Congress to help thousands of brothers and sisters walking on the roads in Uttar Pradesh," she had tweeted in Hindi.

She had said the Congress will stand with these people during the difficult time they face.

In a television interview earlier on Monday, Adityanath accused the Congress of playing politics over the plight of migrant workers.

Singh in his letter on Tuesday also expressed surprise at the chief minister, saying his government was demanding the details of buses since the last three days and asserted that the details were provided immediately after the letter from the UP government was received in this regard.

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News Network
May 29,2020

New Delhi, May 29: In a powerful display of inter community solidarity, a team of Sikh volunteers visited Delhi's Jama Masjid and sanitized the 17th century monument.

As the national capital battled coronavirus, the historic Jama Masjid is closed for congregational prayers. However, the team of Sikh volunteers effectively sanitized the monument to ensure it is safe for the caretakers and visitors.

The volunteers affiliated with United Sikhs organization also met Naib Shahi Imam of Jama Masjid Syed Shaban Bukhari during the visit. The latter thanked the team for the humanitarian gesture and underlined the need for all sections of humanity to unite in the face of this crisis.

"The Sikh community has always displayed exemplary commitment to humanity and we are thankful to the United Sikhs' team for their initiative. This enormous crisis facing the human race can be fought off only if all communities, nations and people unite and fight it together. In recent weeks we have seen heart wrenching images of misery in the country as thousands of migrant workers return to their villages. At the same time we have also seen positive stories of different people uniting to help and feed them. We hope that together we will overcome this crisis," said Syed Shaban Bukhari, Naib Shahi Imam, Jama Masjid, Delhi.

Shaban Bukhari has also advised Muslims across the country to strictly avoid congregational prayers this Eid and pray at homes. He is young leader, who really believes in secularism. For him, humanity and kindness come first.

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News Network
February 2,2020

New Delhi, Feb 2: The Congress on Sunday released its manifesto for Delhi polls, promising to implement unemployment allowance of Rs 5,000-7,500 per month and cashback schemes for water and power consumers, if voted to power.

Presenting the manifesto, Delhi Congress chief Subhash Chopra said the party will provide free power up to 300 unit per month.

The manifesto also committed to spend 25 per cent budget each year on fighting pollution and improving transport facilities.

An unemployment allowance of Rs 5,000 for graduates and Rs 7,500 for post graduates per month will be provided under the Yuva Swabhiman Yojna, he said.

The Congress will launch flagship cashback schemes for power and water supply to benefit consumers saving these resources. The party, if voted to power, will open 100 Indira Canteens to provide subsidised meals at Rs 15, Chopra said.

The Congress will challenge the Citizenship Amendment Act (CAA) in the Supreme Court and demand the Centre to withdraw the law. The party will also not implement the National Register of Citizens (NRC) and the existing form of the National Population Register (NPR), if voted to power in Delhi.

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