Chandrayaan-2: ISRO to simulate varied scenarios to find why Vikram lander failed

Agencies
September 14, 2019

Bengaluru, Sept 14: The Indian space agency will simulate various scenarios, including what it has not done and what it had assumed, to arrive at the probable cause of its moon lander Vikram hitting the lunar surface after veering away from its plotted path and losing communication link with ground stations, a retired senior ISRO official said.

Early on September 7, Vikram, while on its descent to soft land on the Moon's south polar region, apparently lost control and crash-landed there, snapping the communication links.

"The Indian Space Research Organisation (ISRO) has to simulate various things and scenarios with the data on hand. It should also check and simulate what the actions that were not done and the results that they had assumed," the retired official, who preferred to remain anonymous, told IANS.

According to him, ISRO has to see whether any simulation prior to the launch was overlooked or waived any known deviation.

"ISRO should also check out to the extent at which various failure modes were simulated. ISRO has to go into these details. It would take considerable time to arrive at a conclusion," he added.

Space experts had told IANS that normally any data loss from a satellite means it suddenly changed its attitude. The loss of communication link means the target /satellite experienced a large angular rotation.

According to them, the loss of communication link could also be due to wrong input being loaded on to the lander.

In other words, the loss of communication link with Vikram could be due to sudden disturbance - in the form of engine propulsion or wrong data input, experts said.

A former official classified the Chandrayaan-2 mission into four parts: putting the Chandrayaan-2 spacecraft into earth orbit; taking it into the moon orbit; soft landing of the lander Vikram; and rover Pragyan rolling down to carry out scientific experiments.

"Out of the four, the first two were successful and the last two have not happened," he said.

He said ISRO would have got various engineering data from this mission which will be useful for the future course of action.

On July 22, the Rs 978 crore Chandrayaan-2 was launched into the space by India's heavy lift rocket Geosynchronous Satellite Launch Vehicle-Mark III (GSLV Mk III) in a textbook style.

The Chandrayaan-2 spacecraft comprised three segments -- the Orbiter (weighing 2,379 kg, eight payloads), 'Vikram' (1,471 kg, four payloads) and 'Pragyan' (27 kg, two payloads).

After five earth-bound orbit raising activities, Chandrayaan-2 was inserted into the lunar orbit. On September 2, Vikram separated from the orbiter.

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Agencies
January 6,2020

Lucknow, Jan 6: Undeterred by the large scale protests that claimed as many as 20 lives in the state, Uttar Pradesh government has started the process of implementing the controversial Citizenship (Amendment) Act.

According to sources in the government, the district magistrates have been directed to identify the migrants from Pakistan, Bangladesh and Afghanistan, who have been living in their districts.

Sources said that the state home department has given oral instructions to the district magistrates. ''No written orders have been issued,'' said a senior official here preferring anonymity.

The official said that the district magistrates would be preparing a list containing names of those minorities, who had migrated from these countries following their persecution and had been living without obtaining the citizenship of India.

According to sources, the government expected that the migrants, who could be eligible for the Indian citizenship in accordance with the CAA, could be more in number in the districts, including Rampur, Ghaziabad, Shahjahanpur, Lucknow and some others.

''The list will be sent to the union home ministry,'' the official added.

Sources said that the state government will also inform the centre about the ''illegal Muslim migrants'' for their ultimate deportation to their countries of origin.

Different parts of UP had witnessed large scale violence last month during the protests against the CAA. At least 20 people, mostly youngsters, were killed allegedly in police firing and many others were injured. The state government had denied the charge. 

Alleged police excesses during and after the protests triggered a nationwide outrage with several rights organisations and activists slamming the BJP government and demanding a high-level probe into the allegations.

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Agencies
February 4,2020

New Delhi, Feb 4: Four-month-old Mohammed Jahaan accompanied his mother almost every day to the Shaheen Bagh demonstration where he was a favourite with the protesters who would take turns to hold him and often draw the tricolour on his cheeks.

Jahaan will not be seen at Shaheen Bagh anymore. He died last week after acquiring a severe cold and congestion following exposure to the winter chill at the outdoor demonstration. His mother is, however, undeterred and determined to participate in the protests, saying it is "for the future of my children".

The infant's shattered parents, Mohammed Arif and Nazia, live in a tiny shanty put together with plastic sheets and cloth in Batla House area and have two other children -- a five-year-old daughter and a one-year-old son.

Hailing from Bareilly in UP, the couple is barely able to make ends meet. Arif is an embroidery worker and also drives an e-rickshaw. His wife helps him in his embroidery work.

"I haven't been able to earn enough in the last month despite driving the battery rickshaw in addition to my embroidery work. Now with our baby's demise, we have lost everything," he said, showing a picture of little Jahaan wearing a woolen cap that read 'I Love My India'.

A visibly disturbed Nazia said Jahaan passed away in his sleep on night of January 30 after returning from the protests.

"I had returned from Shaheen Baag at around 1 AM. After putting him and other kids to sleep, even I went to sleep. In the morning, I suddenly found him motionless. He was gone in his sleep," she said.

The couple said they took their motionless baby to the nearby Alshifa Hospital on the morning of January 31 where he was declared dead on arrival.

Nazia, who had been visiting the Shaheen Bagh demonstration everyday with Jahaan since December 18, says that he died after catching a cold that turned lethal.

She said she didn't realise that his congestion was so severe. However, the baby's death certificate issued by the hospital does not mention any specific reason for the death.

Shazia, a neighbour who was present at the couple's home, said Nazia had fought with her mother and husband to visit Shaheen Bagh everyday. Nazia would gather all women in the bylane outside her house so that they could together walk to the demonstration, around 2 km away. Sometimes, Arif would drop some of them to Shaheen Bagh on his e-rickshaw.

Nazia said she strongly feels that the CAA and NRC are against the welfare of all communities and will join the Shaheen Bagh protests, but this time without her children.

"Why was I doing this? For my children and the children of all us who need a bright future in this country," she told PTI.

"The CAA divides us on religion and should never be accepted. I don't know if there is politics involved but I know that I must question what is against the future of my children."

Arif, however, blamed the NRC and CAA for his child's death.

"Had the government not brought CAA and NRC, people would not have protested and my wife would not have joined them, my son would have been alive," he said.

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Angry Indian
 - 
Tuesday, 4 Feb 2020

inna lillahi inna ilaihi rajioon...so sad

 

Modi, delhi police and Amith Shah the biggest EVIL of india is responsible for this samll soul death...

 

you have to answer one day after you die...dont think this world is permenant..

 

you will never see heaven forever...you must root in hell

 

GADDAR PM & HM

 

Jai Hind

 

 

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Agencies
February 6,2020

Bijnor, Feb 6: Apprehensions over the Citizenship Amendment Act (CAA) and the National Register of Citizens (NRC) are now so strong that a team of economic enumerators were allegedly manhandled in Uttar Pradesh's Bijnor district and faced stiff resistance from the people.

A team of the economic census enumerators in Bijnor, on Wednesday, sent a letter to the District Magistrate narrating the difficulties they are facing in some parts "due to misinformation".

District magistrate Ramakant Pandey, when contacted, said that he had asked the department concerned to complete the work on time. "If teams are facing any problems, we will sort it out at once. No hurdle in economic census will be tolerated," he said.

According to District Economic and Statistics Officer, Harendra Malik: "Our teams are facing protests in minority-dominated areas as people are linking it to the NRC. Some team members were manhandled.

"We have now asked village heads and municipality chairmen to help our teams in the survey and convince the people. Our teams are trying to convince them that it is a routine work which is being carried out for years. It has nothing to do with the NRC or CAA."

He further said that they plan to hold a series of meetings with people's representatives, including village heads and chairmen, so that they could put an end to this confusion.

The seventh economic census was flagged off in Bijnor by District Magistrate Ramakant Pandey on January 6. There are around 3,000 enumerators and 569 supervisors engaged in the census being carried out under the supervision of economic and statistics department. It is expected to be completed by March 31.

The economic census is aimed at collecting data about the financial status of people engaged in unorganised sector.

Meanwhile, the areas where the enumerators are facing stiff resistance include Kalhari village in Najibabad block, Amipur Narain village in Mohammadpur Devmal block, Anisa Nangli village in Dwarka block and the Mirzapur Bella village in Jalilpur block.

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