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Hayabusa 2 (Хаябуса-2), Procyon – H-IIA F26 – Танэгасима – 03.12.2014 04:22:04 UTC, (успешно)
 
Брифинг по исследованию астероида «Хаябуса 2» 2018-06-21 05:00 UTC


https://www.youtube.com/watch?v=wttTsJXeKLI
Изменено: tnt22 - 21.06.2018 07:43:12
 
 
Данные на 03:00 UTC 2018-06-21:
- расстояние до астероида Рюгю - 76 км
- скорость сближения - 0.4 м/с
- ожидаемая дата встречи с астероидом - 2018-06-27

 
Съёмка астероида камерой ONC-T с различных дистанций
 
Сопоставление с другими объектами
 
 
 
 
График проведения корректирующих манёвров
 
Брифинг завершен
 
Запись брифинга (яп. яз.)

https://www.youtube.com/watch?v=wttTsJXeKLI
Загрузка плеера
(1:05:14)
 
на северном полюсе виден лёд.
 
Рюгю c расстояния от 220 до 100 км
Цитата
小惑星探査機「はやぶさ2」‏Подлинная учетная запись @haya2_jaxa 1 ч. назад

220~100kmの距離から見たリュウグウ:クレーターやボルダー(岩塊)もだんだんはっきりと見えてきました! http://www.hayabusa2.jaxa.jp/topics/20180621je/index.html …




Изменено: tnt22 - 21.06.2018 16:43:55
 
http://www.hayabusa2.jaxa.jp/topics/20180621je/index_e.html
Цитата
Ryugu seen from a distance of 220-100km

The onboard ONC-T (Optical Navigation Camera - Telescopic) imaged Ryugu from June 18, 2018 at around 12:00 JST to June 20 at around 19:00 JST. At 12:00 JST on June 18, the distance between the spacecraft and asteroid was about 220km, and this decreased to about 100km by June 20, 19:00 JST.

The following image in Figure 1 is the original photograph without any pixel smoothing. The order of the images is the chronological order in which they were captured. The size of the asteroid remains proportional to the distance (no size correction; the asteroid appears smaller when more distant.)


[Enlargement]
Figure 1: Asteroid Ryugu photographed using the ONC-T between June 18, 2018 at around 12:00 JST and June 20 at around 19:00 JST.
ONC team: JAXA, University of Tokyo, Koichi University, Rikkyo University, Nagoya University, Chiba Institute of Technology, Meiji University, University of Aizu and AIST.


Separated images: [01] [02] [03] [04] [05] [06] [07] [08] [09] [10] [11] [12] [13] [14] [15] [16]

In the follow Figure 2, the image has been smoothed and the brightness adjusted to emphasize light and dark regions.


[Enlargement]
Figure 2: Asteroid Ryugu photographed using the ONC-T. Image processing has been used to interpolate between the pixels during enlargement and emphasize light and dark regions (brightness squared). Images were taken between June 18, 2018 at around 12:00 JST and June 20 at around 19:00 JST.
ONC team: JAXA, University of Tokyo, Koichi University, Rikkyo University, Nagoya University, Chiba Institute of Technology, Meiji University, University of Aizu and AIST.


Separated images: [01] [02] [03] [04] [05] [06] [07] [08] [09] [10] [11] [12] [13] [14] [15] [16]

Comment by the ONC PI (Principal Investigator), Seiji Sugita

"The varied geography of Ryugu"

As we approached Ryugu and were able to distinguish individual features in the asteroid's topology, it became clear that Ryugu has a land of rich terrain. Numerous clusters of rock roll on the surface. Among these, a large rocky mass (about 150m across) stands out on the upper part of Ryugu due to its brighter color (higher reflectivity). The belt-shaped ring of peaks that surround the equator are also slightly brighter than their surroundings. This color difference may reflect a difference in material composition and the size of the particles that form the rock. We can also see many sunken regions that look like craters. These depressions may have been made in collisions with other celestial bodies. A structure that looks like a grove is also visible.

The existence of such varied topographies is an indication that Ryugu has undergone a complex evolutionary history. It is generally believed that small asteroids that are less than 1km, such as Ryugu, were created fairly recently in the Solar System's history (within several hundred million years) during the fragmentation of a larger parent body. Ryugu's terrain will tells us about the division from the parent body and the asteroid's subsequent evolution.

Hayabusa2 project
2018.06.21
 
Цитата
Григорий Разгон пишет:
Цитата
pkl пишет:
без узенькой перемычки.

Я имел в виду вот такой вид, "Визитная карточка" тел "горячего сценария." http://i066.radikal.ru/1408/1d/627d6a514fc4.jpg
Аааа... Да, борозда там есть. Разлом? Пол-астероида пересекает. Но мне больше интересен купол в верхней части. Это гора?
Вообще, исследовать солнечную систему автоматами - это примерно то же самое, что посылать робота вместо себя в фитнес, качаться.
Зомби. Просто Зомби (с)
Многоразовость - это бяка!
Дмитрий Инфан (с)
 
Цитата
Pirat5 пишет:
на северном полюсе виден лёд.
Обождите. Это может быть просто очень светлый грунт - там молодой кратер с крутыми склонами. Грунт осыпался и обнажил вещество, которое ещё не потемнело от радиации.
Вообще, исследовать солнечную систему автоматами - это примерно то же самое, что посылать робота вместо себя в фитнес, качаться.
Зомби. Просто Зомби (с)
Многоразовость - это бяка!
Дмитрий Инфан (с)
 
Это глыба, раньше Рюгу не принадлежавшая.


Метров 200 в длину.
Так или иначе мы всё-таки будем там.
 
Красивая каменючка. Не то что та.
Ангара - единственный в истории мировой космонавтики случай когда новая ракета по всем параметрам хуже старой. (с) Старый Ламер
 
https://spaceflightnow.com/2018/06/20/asteroid-ryugu-revealed-by-approaching-japanese-spacecraft/
Цитата
Asteroid Ryugu revealed by approaching Japanese spacecraft
June 20, 2018 | Stephen Clark

EDITOR’S NOTE: Upd ated June 21 with new images.


These views of asteroid Ryugu were taken June 18 through June 20 by the Hayabusa 2 spacecraft’s telescopic optical navigation camera, showing the rotating object as the probe approached. Credit: JAXA, University of Tokyo, Koichi University, Rikkyo University, Nagoya University, Chiba Institute of Technology, Meiji University, University of Aizu and AIST.

In the final days of a three-and-a-half year pursuit, Japan’s Hayabusa 2 sample return spacecraft is beaming back clearer images of asteroid Ryugu, an unexplored object that scientists say resembles a spinning top or dumpling nearly 180 million miles fr om Earth.

The approaching Hayabusa 2 spacecraft is revealing Ryugu for the first time, sharpening views of an asteroid scientists hope to sample later this year. The nearly 3,000-foot (900-meter) wide asteroid has never been visited by a space mission before now.
Скрытый текст
 
Цитата
pkl пишет:
Грунт осыпался и

Под действием какой силы? ;)
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