space exploration

Japan says SLIM moon probe achieved ‘pinpoint’ landing

Reuters

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Japan says SLIM moon probe achieved ‘pinpoint’ landing

SLIM. Journalists look at a screen showing an image taken by LEV-2 on the moon, at the Japan Aerospace Exploration Agency press conference on the Smart Lander for Investigating Moon's moon landing mission,u00a0in Tokyo, Japan January 25, 2024.

Kim Kyung-Hoon/Reuters

The Japan Aerospace Exploration Agency says it received all data about the landing of its Smart Lander for Investigating Moon (SLIM) within the 2 hours and 37 minutes after the touchdown, before the lander lost power

TOKYO, Japan – Japan achieved an unconventionally precise moon landing within a few meters of its target, the space agency said on Thursday, January 25, after the nation became the fifth to put a spacecraft on the moon with the weekend touchdown of its SLIM probe.

Japan hopes the demonstration of the precise landing technology will revitalize a space program hit by recent setbacks, as it moves to capture a bigger role in space by partnering with ally the United States to counter China.

The Japan Aerospace Exploration Agency (JAXA) said it received all data about the landing of its Smart Lander for Investigating Moon (SLIM) within the 2 hours and 37 minutes after the touchdown, before the lander lost power.

“We need a more detailed analysis of the data, but the accuracy of the ‘pinpoint’ landing was probably 3 m to 4 m,” its project manager for the lander, Shinichiro Sakai, told a press conference, or a distance equivalent to 10 to 12 feet.

The lander was toppled on the gentle slope of a lunar crater in a picture of the moon’s surface published by JAXA, which had been taken by a baseball-sized wheeled rover, LEV-2, that SLIM deployed during touchdown.

One of the lander’s two main engines probably stopped in the final phase of touchdown, leaving it in an unintended position, Sakai added.

Angled westward because of the tumble, SLIM’s solar panels have been unable to generate electricity, but a change in the direction of sunlight could power it up again, JAXA said in a statement.

Dubbed the “moon sniper”, SLIM attempted to land within 100 m (328 feet) of its target, bettering the conventional accuracy figure of several kilometers.

It employed “vision-based” navigation that JAXA says could be a powerful tool for future exploration of hilly moon poles seen as a possible source of fuel and life-giving water and oxygen.

Home to several private-sector space startups, Japan aims to send an astronaut the moon in the next few years, but JAXA’s recent setbacks in rocket development have included the launch failure in March of its new flagship rocket H3.

That delayed space missions, including SLIM and LUPEX, a joint lunar exploration project with India, which made a historic touchdown on the moon’s south pole with its Chandrayaan-3 probe in August.

In the past year, three lunar missions by Japanese startup ispace, Russia’s space agency and American company Astrobotic have failed, but more lunar landers will head to the moon this year.

US startup Intuitive Machines aims to launch its IM-1 lander in mid-February.

China plans to send its Chang’e-6 spacecraft to the far side of the moon in the first half of the year, and NASA’s launch of its lunar polar exploration rover VIPER is set for November. – Rappler.com

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