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#1 2018-09-21 18:33:51

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 19,696

Japan’s Hayabusa 2 probe

Hayabusa2 is an asteroid sample-return mission operated by the Japanese space agency, JAXA. It follows on from Hayabusa and addresses weak points identified in that mission. Hayabusa2 was launched on 3 December 2014 and rendezvoused with near-Earth asteroid 162173 Ryugu on 27 June 2018. It is in the process of surveying the asteroid for a year and a half, departing in December 2019, and returning to Earth in December 2020.

Japan has been doing what Nasa has not been for some time now...

Japan’s Hayabusa 2 probe drops off rovers at an asteroid and snaps a shadowy selfie

180921-haya1.jpg

Japan’s Hayabusa 2 probe began the climactic phase of its mission overnight by sending out its first two rovers as it hovered less than 200 feet over an half-mile-wide asteroid, more than 180 million miles from Earth.

During the drop-off, the 18-foot-wide spacecraft even took a picture of its own shadow, spread out on the asteroid Ryugu’s rocky surface like a black-and-white copy of the Canadian flag.

The release of Hayabusa 2’s MINERVA-II-1 rovers occurred at 9:06 p.m. PT Thursday, mission controllers at the Japan Aerospace Exploration Agency reported in a tweet. Hayabusa 2 dipped as low as 55 meters (180 feet) for the release, then retreated back from the asteroid.

Hayabusa 2 was launched nearly four years ago and made its rendezvous with Ryugu in June. The goal of the $150 million mission is to study the asteroid in depth, from space and from the surface, and bring samples back to Earth in late 2020. Such samples could shed additional light on the solar system’s formation and life’s chemical building blocks.

This mission follows up on the first Hayabusa odyssey, which touched down on the asteroid Itokawa in 2005 and returned a smattering of samples in 2010.

Hayabusa 1 had a similar lander experiment, known as MINERVA (which stands for “Micro Nano Experimental Robot Vehicle for Asteroid”), but the drum-sized rover container missed making its landing and sailed off into interplanetary space instead.

If MINERVA-II-1’s container follows its proper course, two 7-inch-wide rovers will touch down on Ryugu’s surface, hop around and take pictures. Stereo images from Rover-1A and Rover-1B would be sent up to the Hayabusa 2 mothership, and then relayed back to Earth.

Ryugu’s gravity is so weak that it could take up to 15 minutes for a rover to make a slow, single hop from one spot to another spot up to 50 feet (15 meters) away.

MINERVA-II-1 is just the first surface sortie for Hayabusa 2. A larger, instrument-laden lander, provided by the German and French space agencies and known as MASCOT (“Mobile Asteroid Surface Scout”), will be dropped off next month. Another rover package, MINERVA-II-2, is due to be deployed next year.

The main spacecraft itself is also scheduled to descend to the surface in 2019 and collect samples for the return trip.

This is a big year for studying small solar system bodies: NASA’s OSIRIS-REx spacecraft is expected to rendezvous with the asteroid Bennu in December and begin an observational campaign aimed at collecting its own set of surface samples for return to Earth in 2023.

https://www.miamiherald.com/news/busine … 82955.html

Japan_Space_Probe_14670.jpg

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#2 2018-09-22 03:51:32

louis
Member
From: UK
Registered: 2008-03-24
Posts: 5,868

Re: Japan’s Hayabusa 2 probe

Very interesting mission.  It will be nice for JAXA to get some success under their belt as they have had a somewhat chequered record in recent years haven't they?


Let's Go to Mars...Google on: Fast Track to Mars blogspot.com

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#3 2018-09-22 07:58:10

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 19,696

Re: Japan’s Hayabusa 2 probe

The cash flow is just one restrictor of mission types that they could do. Any multi year mission can be fraught with all sorts of issues as the parts age. Sure these are limited research vehicles or probes but what we can do is with in the instruments that we send on them.
The research is part of answering of the question in that are they part of the original planet forming dust disk or are they from out side and just captured debri.

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#4 2018-09-28 20:27:02

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 19,696

Re: Japan’s Hayabusa 2 probe

Japan’s space rover releases new photos of asteroid surface

180928-japan-rover-75.jpg?quality=90&strip=all&w=618&h=410&crop=1

It took more than three years for the unmanned Hayabusa2 spacecraft to reach the vicinity of asteroid Ryugu. One week ago, the craft successfully dropped a small capsule with two rovers onto its surface. The rovers, each about the size of circular cookie tin, don’t have wheels but jump around the asteroid.

Hayabusa2 is scheduled to drop a German-French lander with four observation devices onto the asteroid next week. It later will attempt to land on the asteroid itself to collect samples to send back to researchers on Earth.


Just amazing...

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#5 2020-08-29 19:59:36

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 3,518

Re: Japan’s Hayabusa 2 probe

Here is an update on Hayabusa2 ... I just found it while following a link SpaceNut provided in another topic ...

The Hayabusa2 Re-entry Capsule Approved to Land in Australia
Tokyo, Japan (SPX) Aug 19, 2020
On August 10, 2020, JAXA was informed that the Authorisation of Return of Overseas-Launched Space Object (AROLSO) for the re-entry capsule from Hayabusa2 was issued by the Australian Government. The date of the issuance is August 6, 2020. The Hayabusa2 re-entry capsule will return to Earth in South Australia on December 6, 2020 (Japan Time and Australian Time). The landing site will be the Woomera Prohibited Area. The issuance of the AROLSO gave a major step forward for the capsule recovery. ... read more

Nice to see the Australian's approving the landing request, despite the forbidding name of the site.

(th)

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