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Thread: Hayabusa 2 - Japan's sample return probe to asteroid 1999 JU3

  1. #91
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    Plans to land Hayabusa 2 on Ryugu at the end of this month have been put back to end January next year. Reason - Ryugu is, surface was more rugged than expected.

    https://www.channelnewsasia.com/news...icial-10816652

    A Japanese probe sent to examine an asteroid in order to shed light on the origins of the solar system will now land on the rock several months later than planned, officials said Thursday (Oct 11).

    The Japan Aerospace Exploration Agency (JAXA) told reporters the Hayabusa2 probe is now expected to touch down on the Ryugu asteroid in "late January" at the earliest, rather than at the end of this month as initially expected.

    JAXA project manager Yuichi Tsuda said they needed more time to prepare the landing as the latest data showed the asteroid surface was more rugged than expected.
    "The mission ... is to land without hitting rocks," Tsuda said, adding this was a "most difficult" operation.

    "We had expected the surface would be smooth ... but it seems there's no flat area."
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  2. #92
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    "Collecting a sample from asteroid Ryugu is going to be dicey".

    http://www.planetary.org/blogs/jason...ple-dicey.html

    The scientists and engineers behind Japan's Hayabusa2 mission are giving themselves more time to prepare for a hair-raising sample collection from asteroid Ryugu's surface.

    Hayabusa2 arrived at Ryugu in June, deployed three hopping rovers in September, and dropped a toaster-sized lander earlier this month. The spacecraft was scheduled to touch down on the asteroid and collect a sample later this month, but that has been delayed to early 2019 as Ryugu and Hayabusa2 prepare for solar conjunction, a roughly month-long blackout period where they are on the opposite side of the sun from Earth.

    "Once the angle between the spacecraft, Earth and Sun is less than about 6 degrees, the radio noise from the Sun interferes with communication too much to send a signal to Hayabusa2," said Elizabeth Tasker, an associate professor at the Japanese Aerospace Exploration Agency, JAXA. "As that angle shrinks even more, there is also a point where the Sun is physically in the way."

    JAXA officials say the delay will give them more time to study Ryugu's surface in preparation for touchdown, while learning more about the performance of their spacecraft.
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  3. #93
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    A one minute 40 seconds by BBC - "Asteroid pioneers: The team who put rovers on a space rock"

    https://www.bbc.com/news/av/technolo...n-a-space-rock

    The Hayabusa-2 spacecraft was launched by Japan’s space agency (Jaxa) in 2014.

    Three-and-half years later it reached its destination - the asteroid known as 162173 Ryugu.

    The 900m (2,950ft) wide space rock is thought to be left over from the early days of our Solar System and could provide clues about the origin and evolution of Earth.

    The spacecraft has since deployed rovers to explore the asteroid and will also land on the surface of Ryugu itself to collect samples, before taking off again.

    BBC Click’s Spencer Kelly meets the team behind the project to find out more.
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  4. #94
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    Ryugu and Bennu seem very similar...

  5. #95
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    After taking more than 200 pictures by the two rovers, no suitable smooth landing spot has been found to take samples.

    https://www.apnews.com/0cb50b5b7b1c499b8c12f7f0b315a721

    Japan’s space agency says more than 200 photos taken by two small rovers on an asteroid show no signs of a smooth area for the planned touchdown of a spacecraft early next year.

    The Japan Aerospace Exploration Agency said Thursday the two solar-powered rovers have become inactive and are probably in the shade, but are still responding to signals after three months, exceeding their projected life of several days.
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  6. #96
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    The similarities between Ryugu and Bennu are interesting considering they're dissimilar in size.

    Here's a brief comparison: https://www.space.com/42377-asteroid...ond-shape.html

  7. #97
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    Good to see you back!

  8. #98
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    We live in exciting times. We have right now two missions visiting two different asteroids with the aim of bringing to earth, samples of them. Hayabusa-2 will attempt to do so in a months time.

    http://www.planetary.org/blogs/jason...ollection.html

    Japan's Hayabusa2 spacecraft will try to collect a sample from asteroid Ryugu during the week of 18 February, mission officials said during a press briefing last week. Should problems arise, a backup week is available starting 4 March. The team is now considering two sample collection sites, the smaller of which is just a few meters across.
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  9. #99
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    The date of landing has been set. It is 22nd February.

    https://mainichi.jp/english/articles...0m/0na/024000c

    The Japan Aerospace Exploration Agency (JAXA) will try to land its Hayabusa 2 probe on the asteroid Ryugu on Feb. 22, the agency said on Feb. 6.

    In its landing mission, Hayabusa 2 will use target markers it released earlier on the celestial object, and attempt to collect rocks and sand from the surface and bring them back to Earth.
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  10. #100
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    "What to expect when Hayabusa2 collects a sample from Ryugu"

    http://www.planetary.org/blogs/jason...hayabusa2.html

    More than 4 years after launch and a half year surveying asteroid Ryugu in space, Japan's Hayabusa2 spacecraft is ready for its biggest moment yet: sample collection. The spacecraft is scheduled to touch down on Ryugu at 08:15 Japan time on 22 February (21 February 23:15 UTC, 18:15 EST). If all goes well, Hayabusa2 will gently touch Ryugu with its meter-long sample horn, fire a bullet made of tantalum into the surface, and capture the resulting cloud of dust and debris.

    JAXA plans to hold a press briefing at 15:00 Japan time on 20 February, and another just 3 hours before touchdown. It usually takes a couple of days for JAXA to translate press materials to English, so it may be difficult for non-Japanese speakers to find out more news before the big moment. The best way, then, to follow the mission is JAXA's Hayabusa2 English Twitter account, and of course, this guide!
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  11. #101
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    We have touch down Congratulations Japan

    https://www3.nhk.or.jp/nhkworld/en/news/20190222_27/

    The Japan Aerospace Exploration Agency, or JAXA, says its Hayabusa2 space probe has successfully landed on the asteroid Ryugu in its first attempt to collect rock samples there.

    JAXA says the spacecraft touched down on the asteroid at around 7:29 AM on Friday, Japan time.

    Hayabusa2 began its decent toward Ryugu a little after 1:00 PM on Thursday from an altitude of 20,000 meters, aiming for a small, six-meter-wide touchdown zone.

    The spacecraft switched to autonomous landing mode about 500 meters above the asteroid. It then used sensors to calculate its position and maneuver itself to the landing point.

    Hayabusa2 features a rock-collecting device about one meter long that extends from its bottom and comes in contact with the asteroid's surface. It is designed to fire bullets into the surface and gather the rocks that this stirs up.
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  12. #102
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    Here is video of the capture, and the debris spread around. No wonder there was a dark area .

    https://www.space.com/hayabusa2-aste...n=20190306-sdc

  13. #103
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    Jason Davis on the touch downs and future plans.

    http://www.planetary.org/blogs/jason...own-recap.html

    Hayabusa2 scored a near-perfect bulls-eye during its touchdown on Ryugu in February, according to a 5 March press briefing by JAXA officials. The mission is gearing up for more action-packed operations that include using explosives and a copper projectile to create a crater, and a possible second sample collection after that.
    I am because we are
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