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Old 28-06-2022, 01:23 PM
gary
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Question Mystery impact on Moon March 4th 2022 was likely Chang’e 5-T1

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Originally Posted by By Jamie Johnson, The Telegraph, London 28 June 2022
NASA scientists are baffled by a mystery spacecraft that crashed into the moon, creating two large craters.

The rocket has been tracked through space since 2015, but no one has claimed it. It was travelling at more than 5 kilometres a second when it hit the lunar surface on March 4 this year – and new images by NASA’s Lunar Reconnaissance Orbiter show that the impact was unlike anything they had seen before.

“Surprisingly, the crater is actually two craters, an eastern one (18m diameter) superimposed on a western one (16m diameter),” scientists from NASA and Arizona State University wrote in a post.

“The double crater was unexpected and may indicate that the body had large masses at each end. Typically a spent rocket has mass concentrated at the motor end; the rest of the rocket stage mainly consists of an empty fuel tank. Since the origin of the rocket body remains uncertain, the double nature of the crater may indicate its identity.”

Amateur astronomers first pointed the finger at SpaceX, but then recalculated it was likely to be from a 2014 Chinese lunar mission (Chang’e 5-T1). China has contested this, saying that booster had “safely entered the Earth’s atmosphere and was completely incinerated”.
Bill Gray, an astronomer who created software that tracks objects in space, had to work backwards and compute an approximate orbit, because although China announces and televises its launches, it does not reveal routes.

“I’m 99.9 per cent sure it’s the China 5-T1,” he told the BBC. He had previously thought it was a SpaceX booster.

There are hundreds of pieces of debris on the surface of the moon, as well as lunar landers and astronauts’ waste in ziplock bags. Rocket boosters from the Apollo missions left a number of craters some 40 yards wide on the moon, while in 2019, Israel’s crashed Beresheet spacecraft scattered debris on the lunar surface.

At least 47 NASA rocket bodies have created “spacecraft impacts” on the moon, according to 2016 data from Arizona State University. However, its scientists said: “No other rocket body impacts on the moon created double craters.”

Japan, South Korea, Russia, India and the United Arab Emirates aim to send missions to the moon in the next year, while the US plans to land the first woman there in 2024.
Full story with images here :-
https://www.smh.com.au/world/north-a...28-p5ax4x.html
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Old 28-06-2022, 01:46 PM
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multiweb (Marc)
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For nasa to pick that up they must be flicking non stop pictures of the moon surface before and after to check what's happening. Maybe they repurposed all those blokes who were tracking ICBM launchers movements during the cold war
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Old 28-06-2022, 03:49 PM
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taminga16 (Greg)
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Quote:
Originally Posted by multiweb View Post
For nasa to pick that up they must be flicking non stop pictures of the moon surface before and after to check what's happening. Maybe they repurposed all those blokes who were tracking ICBM launchers movements during the cold war
'and new images by NASA’s Lunar Reconnaissance Orbiter'
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Old 28-06-2022, 06:43 PM
Dennis
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Interesting read Gary - thanks for posting this.

Cheers

Dennis
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Old 30-06-2022, 02:07 PM
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Sunfish (Ray)
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Thanks Gary. I saw that in the papers. Interesting that amateur astronomers are calculating the origin. Maybe it was Wallace and Grommet or their fridge.
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