Tuesday , August 9 2022

Hayabusa2 strikes down on asteroid, shooting


Hayabusa2 timing plot.
Enlarge / / Timetable of the process of approach and sampling.

Today, at Extended Twitter article and a press conference followed, the JAXA Hayabusa2 team announced that everything has gone well when collecting an asteroid sample for the ultimate return to Earth. Although we still do not know about the material obtained, the Japanese spacecraft has managed to complete all the orders associated with the sample recovery.

Hayabusa2 has been in space since 2014, and it gradually went to an orbit 20km above the Ryugu asteroid surface. At the end of 2018, the spacecraft made a close approach to the asteroid and released two small, solar robots that have been hoping for the surface since then. This week has seen the first of what is meant to be a number of sample collection attempts.

The procedure for this is quite simple: Hayabusa2 turns to the asteroid and shoe. The "corn" searcher has a sample collection that can be set against the surface of the asteroid. Once it is in place, Hayabusa2 can rub a bullet to the surface of the asteroid, free spray material collected by the corn that can be stored to return to the Earth. JAXA, the Japanese space agency, calls his gun as a "projector" but admits that he is blamed into bullet. JAXA has a web page that describes some tests on the Earth from the entire system.

If you're going to shoot asteroid, you'll need a big bullet. "Src =" https://cdn.arstechnica.net/wp-content/uploads/2019/02/fig1b-640x559.jpg "width =" 640 "height =" 559 "srcset =" https: //cdn.arstechnica .net / wp-content / uploads / 2019/02 / fig1b-1280x1119.jpg 2x
Enlarge / / If you're going to shoot asteroid, you'll need a big bullet.

This obviously requires that Hayabusa2 leave its orbit for 20km and go to the asteroid. An approach is carried out carefully, with an initial speed of 145 meters / hour, slowing to 36m / h in the last stages, which means that 20km take a long time. However, the Hayabusa2 team monitoring has confirmed that all the commands planned during the approach are implemented correctly, which indicates that Hayabusa2 is now running the first of several samples asteroid.

The initial samples will be the surface material, which may have been exposed to radiales and potentially high energy particles since the formation of the Solar System. But Hayabusa2 also includes the heavier bullet that is intended to blow off the surface material to reveal material that has been protected for billions of years. Ryugu is thought to be rich in water and organic material, and could provide a time capsule for studying these starting materials before incorporating into blanket and shrub.

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