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Hayabusa 2 (Хаябуса-2), Procyon – H-IIA F26 – Танэгасима – 03.12.2014 04:22:04 UTC, (успешно)
HAYABUSA2@JAXA‏ @haya2e_jaxa 40 мин. назад

In the days since our arrival, Hayabusa2 has been confirming the performance of the onboard instruments while maintaining the 20km “home position” from Ryugu. This will prepare us for the next set of observations.
DLR - English‏Подлинная учетная запись @DLR_en 6 ч.6 часов назад

Something's up at the #DLR Lander Control Center... tomorrow is a big day for the @MASCOT2018 #asteroid lander! Christian Krause, MASCOT Ground Segment and Operations Manager elaborates...
Изменено: поц - 05.07.2018 22:19:28
MASCOT Lander‏Подлинная учетная запись @MASCOT2018 7 мин. назад

Hello from #Ryugu, #Earth! My team in Cologne gave me a check-up & everything is A-OK! I feel on top of the Universe! #asteroidlanding #hayabusa2

Preparing for an asteroid landing – the MASCOT Control Center in contact with the MASCOT lander
06 July 2018

MASCOT asteroid lander on board the Hayabusa2 spacecraft
Скрытый текст

  • First signals received from asteroid lander MASCOT upon its arrival at asteroid Ryugu
  • Start of period of intensive landing preparations
  • Cooperation between Germany, France and Japan
  • Focus: Aerospace, exploration, robotics
On 6 July 2018 at 03:15 CEST (01:15 UTC), it was time. The team at the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) MASCOT Control Center in Cologne received the first signals from the German-French asteroid lander MASCOT upon its arrival at the near-Earth asteroid Ryugu. On 27 June 2018, the lander reached the asteroid aboard the Japanese space probe Hayabusa2 after a three-and-a-half year journey through space. For the first time this year, the researchers have contact with MASCOT and are presently checking all the on-board systems and instruments. "Now begins the period of intensive landing preparations, because we can only intervene to a limited extent during the landing," says MASCOT Ground Segment and Operations Manager Christian Krause from the DLR Microgravity User Support Center (MUSC).

MASCOT will only be accessible from Earth for a limited number of time windows when landing on Ryugu, with commands to the lander and a response back to Earth taking more than 30 minutes. During the approximately 16-hour-long measurement operation on the surface, MASCOT has to be largely left to its own devices, and the landing exercises and tests on the ground are therefore of particular importance. "We have subjected all of the landing sequences to extensive testing using a ground model of MASCOT," explains Krause. "With the model we can, for example, test the system sequences during movement and realignment, as well as examine the scientific processes of the experiments on board." Since the launch of Hayabusa2 and MASCOT on 3 December 2014, the researchers have, together with JAXA, been working through and refining the landing sequences and instrument calibrations with the ground model. For the most part, they have had to work without much information about the asteroid and make broad assumptions about the surface conditions and reflectivitywhich they can now adapt and refine.

A leap into the unknown
Скрытый текст

About the Hayabusa2 mission and MASCOT
Скрытый текст
Обновление. Рюгю в 3D
小惑星探査機「はやぶさ2」‏Подлинная учетная запись @haya2_jaxa 14 ч. назад

Webを更新しました。 これがリュウグウ - 3Dで見る全体像 http://www.hayabusa2.jaxa.jp/topics/20180710je/index.html …

Рюгю в 3D (замедленно)

(Завершено создание исходной версии модели формы Рюгю)

図1 会津大によるリュウグウの形状モデル。
(Рисунок 1 Формальная модель Рюгю. Университет Айзу.)

図2 神戸大によるリュウグウの形状モデル。
(Рисунок 2 Формальная модель Рюгю. Университет Кобе.)

形状モデルチームでは、同じ画像データから、二つの異なった方法で形状モデルを作成しています。一つ目の方法は、Structu­re-from-Motion(SfM)と呼ばれるステレオ視の手法の一種です。最近よく見かける、ドローンからの空撮の映像から地形や建物の形­を作成するのにも用いられています。図1に示されているモデルがこの方法で作成されたものです。もう一つの方法は、Stereo­photoclinometry (SPC)と呼ばれるもので、「はやぶさ」探査機が訪問した小惑星イトカワの形状を調べるのにも用いられました。図2に示されているモデル­がこの方法で作成されたものです。二つの形状モデルデータを比較することで、リュウグウの形状をどの程度の精度で計測できている­かを把握することができます。それぞれ細かい差異はありますが、どちらもそろばんの珠のようなリュウグウの全体形状や、その表面­にあるクレーターのような窪地、岩塊が再現できていることがわかります。
(Команда исследователей формирует модели формы из одних и тех же данных изображения двумя различными способами. Первый метод - это тип стереовидения, называемый Structure - from - Motion (SfM). Он используется для создания топографии и построения фигур из фотоизображений с космического аппарата, которые мы видели недавно. Таким образом была создана модель, показанная на рисунке 1. Другой метод, называемый Stereophotoclinometry (SPC), уже использовался для исследования формы астероида Итокава, посещенного зондом Хаябуса. Таким образом была создана модель, показанная на рисунке 2. Сравнивая данные двух геометрических моделей, мы можем понять степень точности измерения формы Рюгю. Хотя есть незначительные различия, можно увидеть, что вся форма Рюгю похожа на шарик на счётах и все кратерные депрессии и массивы горных пород на поверхности могут быть воспроизведены.)

(Получая новые изображения с высоким разрешением из будущих наблюдений, можно будет более подробно представить трехмерную форму Рюгю.)

Проект Hayabusa 2
This is Ryugu -- a global image in 3D

Asteroid Ryugu (designation number 162173) is a "spinning top" -type asteroid which was not predicted before the recent images captured by Hayabusa2. A global image of the asteroid as it rotates is shown below as a 3D animation.

[Original file]

[Original file]
Animation of the stereoscopic global image of asteroid Ryugu. When viewed through red / blue glasses (blue filter over the right eye), the asteroid should look three-dimensional. The images were captured with the Optical Navigation Camera - Telescopic (ONC-T), photographed on June 23, 2018.
Image credit ※: JAXA, University of Aizu, University of Tokyo, Kochi University, Rikkyo University, Nagoya University, Chiba Institute of Technology, Meiji University and AIST.

These animations show the result of sequential images of asteroid Ryugu taken with the ONC-T (Optical Navigation Camera - Telescopic) during the final approach to Ryugu on June 23, 2018. Images were captured at approximately 10 degrees increments as the asteroid rotates. The distance fr om the spacecraft to Ryugu at this time was about 40 km.

If you assemble red-blue glasses (placing the blue filter over your right eye) and look at these figures, Ryugu should appear three dimensional. The overall shape of Ryugu and the undulations of he craters and boulders become very cler.

From here on, we will be investigating Ryugu in more detail.

※ If you wish to use the images here, please include the displayed credit. In the case wh ere an abbreviated form is necessary, please use "JAXA, University of Aizu & collaborators".

Hayabusa2 Project
The view of Ryugu fr om the home

From the "home position" at 20 km away from asteroid Ryugu, Hayabusa2 has been confirming instrument operations in preparation for future observations. The images below show the results of part of this rehearsal observation.

Figure 1: Asteroid Ryugu photographed with the ONC-T from a distance of about 20 km. The image was taken at around 23:13 JST on June 30, 2018.
Image credit ※: JAXA, University of Tokyo, Kochi University, Rikkyo University, Nagoya University, Chiba Institute of Technology, Meiji University, University of Aizu and AIST.

Figure 2: Ryugu photographed with the ONC-T from a distance of about 20 km. This image was taken at around 19:21 JST on June 30, 2018. As the asteroid has rotated, this image is almost the reverse side of Figure 1.
Image credit ※: JAXA, University of Tokyo, Kochi University, Rikkyo University, Nagoya University, Chiba Institute of Technology, Meiji University, University of Aizu and AIST.

※ If you wish to use the images here, please include the displayed credit. In the case wh ere an abbreviated form is necessary, please use "JAXA, University of Tokyo & collaborators".

Hayabusa2 Project
3д супер! ещё бы разрешением фуллхд...
Кривыми должны быть извилины, а не руки.
Initial version of the shape model
for Ryugu

We previously introduced a global image of asteroid Ryugu, but the Hayabusa2 Project shape model team have also created three-dimensional models of the asteroid. The asteroid was measured using images captured with the ONC-T (Optical Navigation Camera - Telescopic) to form a "shape model" of Ryugu. The shape of Ryugu is fundamental information when considering the formation history of the asteroid and it is also key to future operations by Hayabusa2.

The shape model team have initially used images taken during Hayabusa2's arrival at the asteroid to create the first three-dimensional shape models of Ryugu. This shape models were used in Figures 1 and 2 to show animations of the rotating Ryugu generated using computer graphics.

Figure 1: Shape model of Ryugu by the University of Aizu.
Image credit ※1: University of Aizu, Kobe University (shape model creation), Auburn University (video creation), JAXA.

Figure 2: Shape model of Ryugu by Kobe University.
Image credit ※2: Kobe University, University of Aizu (shape model creation), Auburn University (video creation), JAXA

The shape model team created shape models fr om the same image data in two different ways. The first method shown in Figure 1 is a type of stereoscopic technique called "Structure-from-Motion" (SfM). This is the same method that is used to create terrain and building shapes from aerial images that are commonly seen when taken by a drone. Figure 2 shows the shape model created with a second method known as "stereophotoclinometry" (SPC). This technique was also used to model the shape of asteroid Itokawa, the destination of the first Hayabusa spacecraft. By comparing the two shape models, we can assess how accurately the shape of Ryugu has been replicated. Although the two models show minor differences, both depict a global shape similar to the bead on an abacus, with recesses that look like craters and boulders of rock on the surface.

If higher resolution images of Ryugu are obtained in future observations, the three-dimensional shape of the asteroid can be clarified in greater detail.

※ If you wish to use the images here, please include the displayed credit. In the case wh ere an abbreviated form is necessary, please use ※1 "University of Aizu, JAXA & collaborators" and ※2 "Kobe University, JAXA and collaborators".

Hayabusa2 Project
Operation status report


★ Hayabusa2 status(the week of 2018.7.2) ★
The first week after arriving at Ryugu has gone by in a flash. Monitoring the landscape of a brand-new astronomical object for humanity while continuing spacecraft operations is a wonderful and amazing experience.

The two main activities this week were:
・Establishing the procedure needed to accurately hover 20km above the asteroid.
・An operation check of the observational instruments when directed towards Ryugu.

The outcome of both activities was good. The LIDAR (Laser altimeter) measured the altitude of the asteroid’s facing surface and the Ka-band communication equipment started sending high speed data through the NASA Deep Space Network. From the Doppler shift of the radio waves sent from Hayabusa2, we could tell that the spacecraft is feeling the gravity of the asteroid. Hayabusa2’s exploration of Ryugu in this first week has been a smooth start.

2018.7.9 Y.T.
Зонд «Hayabusa 2» после прибытия к астероиду Рюгю сохраняет положение примерно в 20 км от его поверхности и в настоящее время проводит проверки функционирования различного бортового оборудования.

Запланирован очередной пресс-брифинг о текущем состоянии зонда «Hayabusa 2»

Дата и время: 19 июля 2018 (четверг), 11:00-12:00 (JST)

Предполагаемый состав участников брифинга:
  • Такаши Кубота
    (Институт космической и астронавтической науки JAXA, профессор прикладных инженерных исследований космических аппаратов)
  • Макото Йошикава
    (Институт космической и астронавтической науки JAXA, адъюнкт-профессор прикладных инженерных исследований космических аппаратов)
  • Сейичиро Ватанабе
    (Профессор, Высшая школа экологических исследований, Университет Нагоя)
  • Тацуаки Окада
    (Доцент, Институт космической и астронавтической науки JAXA)
  • Шого Тачибана
    (Профессор Высшей школы науки, Токийский университет)
Трансляция брифинга на ТыТрубе

P.S. Начало брифинга: 02:00 UTC (05:00 ДМВ)
Изменено: tnt22 - 17.07.2018 13:58:13
Достоверность материала под вопросом:
Asteroid Ryugu rotation (Shape model)


Опубликовано: 10 июл. 2018 г.

Shape model of asteroid Ryugu based on data taken by Hayabusa2 Credit: JAXA / University of Tokyo / Kochi University / Rikkyo University / Nagoya University / Chiba Institute of Technology / Meiji University / University of Aizu / AIST / Roman Tkachenko
https://www.youtube.com/watch?v=7-7xg4XAcIk (0:33)
Roman Tkachenko‏ @_RomanTkachenko 8 ч. назад

Polar views of Asteroid Ryugu! #Ryugu #Hayabusa2 #Asteroid

Jul. 19, 2018

★ Hayabusa2 status (the week of 2018.7.9) ★

Operations continue at the Home Position (an altitude of about 20km). Overseas stations as well as the Usuda Deep Space Observatory have also been used for the Ka band downlink and uplink transfer. The ONC-T, LIDAR, NIRS3 and TIR have performed BOX-A (20km altitude) observations, continuing our steady data acquisition.

2018.7.16 M.Y.
Рюгю vs Фудзи с расстояния 20 км
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