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
March 15,2020

New Delhi, Mar 15: The number of novel coronavirus cases in the country rose to 107 on Sunday, with 12 fresh cases in Maharashtra, the Union Health Ministry said.

The number of cases include two persons who died in Delhi and Karnataka.

While a 76-year-old man from Kalaburagi who had recently returned from Saudi Arabia died on Thursday, a 68-year-old woman in Delhi who had tested positive for coronavirus passed away at the Ram Manohar Lohia (RML) Hospital on Friday night.

Delhi has reported seven positive cases and Uttar Pradesh 11 so far. Karnataka has six coronavirus patients while Maharashtra 31, Ladakh three and Jammu and Kashmir 2. Telangana reported three cases.

Besides, Rajasthan also reported two cases. Tamil Nadu, Andhra Pradesh and Punjab have reported one case each.

Kerala has recorded 22 cases, including three patients who were discharged last month after they recovered from the contagious infection with flu-like symptoms.

The total number of confirmed cases includes 17 foreigners -- 16 Italian tourists and a Canadian, the ministry officials said

Amid rising coronavirus cases in India, the government has asked people not to panic, saying no community transmission of the virus has been observed and there has only been a few cases of local transmission so far and that it is "not a health emergency" in India at present.

With the World Health Organisation (WHO) declaring COVID-19 a pandemic, a Health Ministry official said over 4,000 people who had come in contact with the 93 positive cases have been identified through contact tracing and were being tracked while 42,000 people across the country are under community surveillance.

He said all essential facilities like community surveillance, quarantine, isolation wards, adequate personal protective equipment (PPEs), trained manpower, rapid response teams are being strengthened further in all states and union territories.

The government on Wednesday suspended all visas, barring a few categories like diplomatic and employment, in an attempt to prevent the spread of coronavirus.

It has asked Indian nationals to avoid all non-essential travel abroad.

All incoming international passengers returning to India should self-monitor their health and follow the required do's and dont's as detailed by the government.

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Agencies
February 11,2020

New Delhi, Feb 11: Senior Delhi Congress leader and national spokesperson of the party Sharmishtha Mukherjee alleged delay in decision making and lack of strategy and unity at the state level for the party's humiliating performance reflected in the Assembly poll results on Tuesday.

Mukherjee, president of Delhi Mahila Congress, stated that it was high time that the party takes some action. She added that she too was responsible for the Congress' poor show.

The Congress is on the verge of drawing blank again in the Assembly polls as all its candidates were way far behind their AAP and BJP opponents on all the 70 seats. In the 2015 Assembly elections too, Congress failed to win any seat.

"We r again decimated in Delhi. Enuf of introspection, time 4 action now. Inordinate delay in decision making at the top, lack of strategy & unity at state level, demotivated workers, no grassroots connect-all r factors. Being part of d system, I too take my share of responsibility (sic)," Mukherjee tweeted as the results came out.

She also accused the BJP of playing divisive politics while crediting Delhi Chief Minister Arvind Kejriwal for playing "smart politics" as the results showed a clean sweep by the AAP to return to power.

"BJP playing divisive politics, Kejriwal playing ‘smart politics’ & what r we doing? Can we honestly say that we’ve done all 2 put our house in order? We r busy capturing Congress whereas other parties are capturing India. If we r 2 survive, time 2 come out of exalted echo chambers! (sic)," she said in another tweet.

The Congress contested the Delhi polls in alliance with the Rashtriya Janta Dal (RJD), fielding candidates on 66 seats and leaving four to its partner.

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News Network
March 27,2020

Mumbai, Mar 27: Reserve Bank of India (RBI) Governor Shaktikanta Das on Friday said that Monetary Policy Committee (MPC) has taken note of the global economic activity coming to a near standstill due to the coronavirus pandemic and added that large parts of the world could slip into recession in the coming days to the coronavirus crisis.
"The MPC noted that global economic activity has come to a near stand-still as COVID-19 related lockdowns and social distancing are imposed across a widening swath of affected countries. Expectations of a shallow recovery in 2020, from 2019's decade low in global growth, have been dashed," Das said.
"The outlook is now heavily contingent upon the intensity, spread and duration of the pandemic. There is a rising probability that large parts of the world will slip into recession," he added.
The RBI Governor further added that "the implied GDP growth of 4.7 per cent in Quarter 4 of 2019-20, in the second advance estimates of the National Statistics Office which was released in February 2020, within the annual estimate of 5 per cent for the year as a whole is now at risk."
As per the outlook for the year 2020-21, Das said, "Apart from continuing resilience of agriculture and allied activities most other sectors of the economy will be adversely impacted by the pandemic depending upon, its intensity, spread and duration."
Das also announced a reduction in the repo and reverse repo rates for banks.
"The repo rate has been reduced by 75 basis points to 4.4 per cent. The reserve repo rate has been reduced by 90 basis points to 4 per cent," Das said addressing the media.
The decision for "a sizeable reduction" in the policy repo rate, according to the RBI Governor was taken to "revive growth and mitigate the impact of COVID-19 and ensure financial stability." 

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