Mission Chandrayaan 2: Vikram, Orbiter extend good wishes to each other

Agencies
September 6, 2019

Bengaluru, Sept 6: Hours before India's ambitious lunar mission Chandrayaan-2's soft landing on the surface of the moon, the Indian Space Research Organisation (ISRO) on Friday posted a humorous message on Twitter featuring the spacecraft's Lunar Orbiter extending good wishes to the Lander ahead of the historic moment.

"It was great travelling with you so far Vikram. Best of luck! I hope you reach the South Pole soon," the Lunar Orbiter says while releasing Lander Vikram. To this Vikram replies, "It was quite the journey indeed! I'll see you around - in the orbit."

"We have the same wishes for Vikram, Orbiter. Want to stay in touch with Vikram and Pragyan as they make their way to the untouched lunar South Pole and uncover its many mysteries? Then keep an eye out for the next edition of CY2 Chronicles!," the ISRO tweeted. 

The Lander Vikram of Chandrayaan 2 is named after Dr Vikram A Sarabhai, the father of the Indian Space Programme. It is designed to function for one lunar day, which is equivalent to about 14 Earth days. Vikram has the capability to communicate with Indian Deep Space Network (IDSN) at Byalalu near Bangalore, as well as with the orbiter and rover. 

While the Lander weighing 1,471 kg is designed to execute a soft landing on the lunar surface, the Rover, a 6-wheeled robotic vehicle named Pragyan, can travel up to 500 m and it leverages solar energy for its functioning. It can only communicate with the Lander, which was separated from the orbiter on September 2 at 1.15 pm, entering a descending orbit around the Moon.

Pragyan is housed inside the Lander Vikram and it will roll out and deliver scientific payloads to conduct surface and subsurface experiments. 

The lander is expected to touch down near the South Pole of the Moon in the early hours of Saturday morning.

With this, India will become the first country to land close to the lunar South Pole on its first attempt.

Prime Minister Narendra Modi will be at the ISRO around midnight to watch the event. Over 60 high school students across the country who cleared an online space quiz last month will watch the soft landing of the mission with the Prime Minister.

The Chandrayaan 2 spacecraft will be the first Indian expedition to carry out a soft landing on the lunar surface. This mission will make India the fourth country after the US, Russia, and China to conduct a soft landing on the moon.

After revolving around the Earth's orbit for nearly 23 days, the craft began its journey to the moon on August 14. The mission took off from the Satish Dhawan Space Centre in Sriharikota on July 22.

India's second mission to the moon was approved by the cabinet in September 2008, just before the launch of Chandrayaan 1.

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News Network
January 30,2020

Wayanad, Jan 30: Congress leader Rahul Gandhi on Thursday compared Mahatma Gandhi assassin Nathuram Godse with Prime Minister Narendra Modi, saying both believed in the same ideology.

Gandhi, at an anti-CAA rally here, launched a scathing attack on Modi and said he was making Indians to prove that they are Indians.

Addressing participants at "Save the Constitution" march at Kalpetta in Wayanad, his Lok Sabha constituency on Martyr's Day, Gandhi said there was no difference between Godse and Modi.

"Today, an ignorant man is trying to challenge Gandhi's ideology. He is creating an atmosphere of hatred. The ideology is same. Nathuram Godse and Narendra Modi, they believe in the same ideology. There is no difference except that Modi does not have the guts to say he believes in the ideology of Godse," the Wayanad MP said.

Attacking the Prime Minister on the new Citizenship Law, Gandhi questioned Modi and asked who was he to ask Indians to prove that they were Indians.

"Indians are being made to prove that they are Indians. Who is Narendra Modi to decide who is an Indian. Who gave Modi the licence to ask for my Indianness? I know I am an Indian and I don't have to prove it to anyone. Likewise, 1.4 billion Indians do not have to prove that they are Indians," he said.

The Congress leader led the march here as part of efforts to intensify the party's protests against CAA in the state.

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News Network
April 24,2020

New Delhi, Apr 24: The trajectory of COVID-19 cases could have plateaued and might even fall for some weeks after the lockdown is lifted but India is likely to see a second wave in late July or August with a surge in the number of cases during the monsoon, say scientists.

The timing of the peak will depend on how India is able to control physical distancing and on the level of infection spreads after restrictions are relaxed, they said.

It looks apparent that the trajectory of daily new cases has reached a plateau and eventually it will take a downward fall, maybe for some weeks or even months, Samit Bhattacharya, associate professor at the Department of Mathematics, Shiv Nadar University, said.

Still, we may get a surge of new cases of the same coronavirus and this will be considered a second wave, Bhattacharya explained.

The second epidemic may come back in late July or August in the monsoon, although the peak timing will depend on how we control social distancing during that time, he said.

Rajesh Sundaresan, professor at Bengaluru's Indian Institute of Science (IISc), agreed.

“Once we return to normal activity levels, there is a chance that infection may begin to rise again. China is seeing this to some extent post easing of some restrictions on travel,” Sundaresan, corresponding author of a working paper by researchers at IISc and the Tata Institute of Fundamental Research (TIFR) in Mumbai, said.

On March 25, when the number of coronavirus cases was 618 with 13 deaths, the government announced a nationwide lockdown that was later extended to May 3.

On Friday, the death toll due to COVID-19 rose to 718 and the number of cases to 23,077, according to the Union Health Ministry.

In good news, officials said this week that the doubling rate of cases has slowed down in the period, going from 3.4 days before lockdown to 7.5 days, with 18 states doing better than the national average. The recovery rate has also almost doubled in the last 10 days.

"Looking at the new cases in the past few days, it seems the growth of new daily infection is much slower than earlier. This apparently indicates that we might have reached at the plateau of the growth curve, Bhattacharya said.

He noted that recent studies in China and Europe observed that the infection might relapse in those people who have already recovered from earlier phases.

So, there is no evidence that the earlier infection may help acquire immunity against the second infection. And in that way, the entire population may be vulnerable to the second wave to some extent, said the scientist.

In their study unveiled this week, IISc and TIFR researchers analysed the impact of strategies such as case isolation, home quarantine, social distancing and various post-lockdown restrictions on COVID-19 that might remain in force for some time.

The study modelled on Bengaluru and Mumbai suggests the infection is likely to have a second wave and the public health threat will remain, unless steps are taken to aggressively trace, localise, isolate the cases, and prevent influx of new infections.

The new levels and the peaking times for healthcare demand depend on the levels of infection spreads in each city at the time of relaxation of restrictions, they said.

The lockdown is currently upon us. It has given us valuable time. Let us test, trace, quarantine, isolate, practice better hygiene, search for a vaccine, etc. We should do these anyway, and these are being done. When and how to lift the lockdown is going to be a difficult decision to make, said Sundaresan.

It's clear that it's going to be phased. What our team is focusing on is to come up with tools to help the decision makers assess the public health impact of various choices, he said.

According to the experts, infectious diseases spread via contact between infectious and susceptible people. In the absence of any control measures, an outbreak will grow as long as the average number of people infected by each infectious person is more than one.

Once enough people are immune there will be fewer people susceptible to the infection and the outbreak will die.

However, when an outbreak is brought under control by social distancing and other interventions, it is possible only a small proportion of the population will have been infected and gained immunity, they said.

This means enough susceptible people may remain to fuel a second wave if controls are relaxed and infection is reintroduced.

Until the vaccine comes on the market, we have to remain alert Once sporadic cases occur here and there in the country, we immediately need to implement quarantine or social distancing locally for the people in that region, and also need to perform tests to identify positive cases irrespective of showing symptoms, Bhattacharya explained.

Note that these monsoon months are also flu season in many places of India. So, we should not ignore the early signs of the flu symptoms. Irrespective of symptoms, we need to increase tests in the hotspots to identify people and contain the surge, he said.

Sundaresan added that the timeline for a second wave will depend on a lot of circumstances which may change as the time passes.

Significant testing may have been underway, there may be behavioural changes with people becoming more careful about their hygiene, wearing masks may become more common, etc. All these responses may help restrict the second wave, he said.

A study published in The Lancet journal earlier this month modelled the potential adverse consequences of premature relaxation of interventions, and found it might lead to a second wave of infections.

The finding is critical to governments globally, because it warns against premature relaxation of strict interventions, the researchers said.

While interventions to control the spread of SARS-CoV-2 are in place, countries will need to work toward returning to normalcy; thus, knowledge of the effect of each intervention is urgently required, they said in the study.

According to a recent analysis by the Harvard Chan School of Public Health, the best strategy to ease the critical care burden and loss of life from COVID-19 might be on-again, off-again social distancing.

In the absence of such interventions, surveillance and intermittent distancing may need to be maintained into 2022, which would present a substantial social and economic burden, the researchers wrote.p

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News Network
January 7,2020

New Delhi, Jan 7: A fringe right-wing group calling itself the Hindu Raksha Dal has purportedly taken responsibility for the attack on students of Jawaharlal Nehru University (JNU) in a video posted on social media.

The video, which was posted on social media on Monday and has gone viral since then, shows a man identifying himself as Pinki Chaudhary saying that those who resort  to “anti-national activities” will be treated in the same way that JNU students and faculty were.

He later told news channels that others involved in "anti-national activities" would face similar attacks.

There was no immediate reaction from the police on Chaudhury's claims.

“For several years, JNU has been a bastion of communists and we will not tolerate it. Hindu Raksha Dal, Bhupendra Tomar, Pinki Chaudhury take the responsibility of what has happened in JNU...all of them were our volunteers. Those who cannot do such work for Mother India don't have the right to live in this country,” Chaudhary is seen saying in the video.

“We are always ready to sacrifice our lives for Mother India. We will not tolerate anyone who speaks against the religion,” he added.

Efforts to reach the man were unsuccessful: his phone was switched off.

More than 35 students were injured Sunday when a masked mob went on the rampage, attacking students and professors and vandalising property. The JNUSU has accused the RSS-affiliated ABVP volunteers of attacking the students.

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