Tech & Science : Amateur astronomer discovers collision site of Indian lunar lander that crashed into the Moon - - PressFrom - Australia
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Tech & Science Amateur astronomer discovers collision site of Indian lunar lander that crashed into the Moon

13:50  03 december  2019
13:50  03 december  2019 Source:   abc.net.au

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India 's Vikram lunar lander , which crashed on its final approach to the Moon 's surface in September, has been found thanks NASA made the announcement on Monday, releasing an image taken by its Lunar Reconnaissance Orbiter (LRO) that showed the site of the spacecraft's impact (September 6 in

Months after India 's Vikram crashed on the moon , NASA said it has located debris from the lunar lander . 'It took days to find the crash site '. Subramanian said he began searching for the debris after The lunar lander was part of India 's unmanned Chandrayaan-2 mission and was intended to

Chandrayaan-2 was launched to explore the South Pole of the Moon. (Supplied: ISRO)© Provided by ABC NEWS Chandrayaan-2 was launched to explore the South Pole of the Moon. (Supplied: ISRO)

The remains of India's doomed lunar explorer have been located, with NASA images showing debris scattered on the face of the Moon.

India's Chandrayaan-2 mission was launched in July and its Vikram lander was due for a soft landing on the Moon in September, however, the Indian Space Research Organisation (ISRO) lost contact with the module as it prepared for its descent.

A day later, the ISRO said it had been a "hard landing". The space organisation said the lander's descent was normal until two kilometres from the lunar surface.

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NASA’s Lunar Reconnaissance Orbiter (LRO) snapped images of the crash site and its associated debris field Vikram was launched last July as part of India ’s Chandrayaan-2 moon mission, with which New Delhi hoped to The mission’s primary craft remains in orbit around the moon , but it lost

NASA has found pieces of Vikram, a small spacecraft that India attempted to land on the moon in September. They did it with the help of an engineer from India who scoured the lunar surface in his spare time. Vikram was part of India ’s Chandrayaan-2 mission to the moon , which launched in July.

On Tuesday a NASA blog post revealed images of the lander captured by the Lunar Reconnaissance Orbiter Camera (LROC) team.

But it was Shanmuga Subramanian, a mechanical engineer who works in IT in Chennai, India's east, who had discovered the crash site after combing through images of the Moon taken in September.

Scanning for hours each day

NASA had published a mosaic of images of the Moon taken after the crash, calling for the public to help find the site by comparing the photo to an earlier shot.

Mr Subramanian told New Delhi Television he worked for up to seven hours a day scanning through the lunar images.

"I narrowed my search to two square kilometres," he told the broadcaster.

"I used only a laptop and searched all the images."

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A NASA satellite orbiting the Moon has found India 's Vikram lander which crashed on the lunar surface in September, the US space NASA released an image taken by its Lunar Reconnaissance Orbiter (LRO) that showed the site of the spacecraft's impact (September 6 in India and September 7

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He managed to locate a white spec in the photo he suspected was the crash site and alerted NASA.

In the image below, the green dots map out the spacecraft debris, while the blue dots indicate areas where the lunar soil was disturbed by the impact of the crash.

The point marked with an S is the spec located by Mr Subramanian.

NASA said the impact point was "poorly illuminated" and "not easily identifiable", making Mr Subramanian's search even more difficult.

But the painstaking work paid off after he alerted NASA to his findings.

Narrowing the search

Mr Subramanian's tiny, bright dot helped NASA experts narrow their search area, which led them to the discovery of the impact point about 750 metres away.

"After receiving this tip, the LROC team confirmed the identification by comparing before and after images," the NASA blog post read.

"Two subsequent image sequences were acquired on October 14 and 15, and November 11.

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A NASA satellite orbiting the Moon has found India 's Vikram lander which crashed on the lunar surface in September, the US space NASA released an image taken by its Lunar Reconnaissance Orbiter (LRO) that showed the site of the spacecraft's impact (September 6 in India and September 7

A NASA satellite orbiting the Moon has found India 's Vikram lander which crashed on the lunar surface in September, the US space NASA released an image taken by its Lunar Reconnaissance Orbiter (LRO) that showed the site of the spacecraft's impact (September 6 in India and September 7

"The LROC team scoured the surrounding area in these new mosaics and found the impact site and associated debris field."

In an email posted to Twitter, LROC deputy project scientist John Keller left no doubt the dot Mr Subramanian saw was part of a lunar crash zone.

"We needed to be certain of our interpretation of the observation," he said.

"Congratulations for what I am sure was a lot of time and effort on your part."

Historical exploration mission

The Vikram lander of Chandrayaan-2 (Sanskrit for "Moon vehicle") was due to land in the lunar South Pole region and was equipped with a rover to search the area.

Had Vikram's landing been successful, it would have made India just the fourth country to land a vessel on the lunar surface, and only the third to operate a robotic rover there.

NASA said that, while the mission resulted in the loss of Vikram, "getting that close to the surface was an amazing achievement".

Mr Subramanian said he hoped India would be successful in another attempt to land on the Moon.

"Failure is a stepping stone to success," he told New Delhi Television.

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