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Hayabusa 2 (Хаябуса-2), Procyon – H-IIA F26 – Танэгасима – 03.12.2014 04:22:04 UTC, (успешно)
6 МАР, 10:09
Японские специалисты готовятся создать искусственный кратер на астероиде

Это необходимо для того, чтобы собрать образцы пород, скрывающихся в недрах космического тела

ТОКИО, 6 марта. /Корр. ТАСС Василий Головнин/. Специалисты Японского агентства аэрокосмических исследований (JAXA, ДЖАКСА) намерены в начале апреля "выстрелить" 2-килограммовой болванкой с космического зонда "Хаябуса-2" ("Сокол-2") в поверхность астероида Рюгу, на орбите которого находится сейчас этот аппарат. Таким образом они намерены создать там искусственный кратер и попытаться собрать образцы пород, скрывающихся в недрах космического тела.

Как сообщается на сайте JAXA, в первую неделю апреля от "Хаябуса-2" отделится специальный блок, который начнет приближаться к поверхности астероида. На определенном расстоянии от него устройство "выстрелит" 2-килограммовую медную болванку, которая устремится к поверхности астероида со скоростью 2 км/с.

При столкновении с космическим телом снаряд должен создать кратер диаметром в несколько метров. Все это будет фиксировать автоматическая камера, которая для этого отделится от космического зонда. Сам "Хаябуса-2" во время эксперимента переместится на другую сторону астероида, чтобы не пострадать во время "выстрела".

При создании кратера должны обнажиться породы, которые, как предполагают специалисты JAXA, оставались в неприкосновенности со времен формирования Солнечной системы. Ориентировочно в мае "Хаябуса-2" попытается совершить посадку на астероид, чтобы собрать образцы этой породы для доставки на Землю.

22 февраля аппарат уже успешно садился на поверхность Рюгу, который находится на расстоянии 340 тыс. км от нашей планеты. Во время той посадки он также взял образцы пород. Планируется, что на орбите астероида "Хаябуса-2" будет находиться до ноября-декабря и затем отправится в обратный путь к Земле.
спуск DO - S01 начался!

19:50 - 6 мар. 2019 г.
DO - S01 operation began yesterday (March 6th). This is operation to descend to about 23 m altitude in order to investigate S01 which is a new touch down candidate point in detail. Yesterday, I prepared for the descent. DO stands for Descent Observation.
19:53 - 6 мар. 2019 г.
March 7th at 12:40 (JST), Gate 1 check was done and it was confirmed that preparation for descent start is ready. The spacecraft is still in its home position (about 20 km altitude).

На 08:00 UTC 07.03.2019 высота над астероидом 15 км, скорость снижения 04 м/с, передача данных осуществляется станцией ДКС Мадрид
小惑星探査機「はやぶさ2」‏Подлинная учетная запись @haya2_jaxa 6 мин.назад

【DO-S01】3月7日 17:00(JST)、探査機の高度が約15kmになりました。秒速0.4m/sほどで降下しています。現在は、DSN(Deep Space Network)のマドリッド局で運用がなされています。
Navigation Images from the DO-S01
operation (Real time delivery)

Navigation Images from the DO-S01 operation (Mar. 07 - 08, 2019), taken by the wide-angle camera ONC-W1.

We are currently delivering navigation images with the Optical Navigation Camera Wide angle (ONC-W1) in real time.
Please understand that the image may be distorted due to the network status or data processing.

  • The page displays the latest list of images at the time of loading. Please reload the browser window to update to the latest image.
  • Time is given in UTC (Universal Time). For Japan time (JST), please add 9 hours. For Eastern Time (ET), please subtract four hours.
  • We cannot obtain real time images during the sequence of most low altitude. We will tweet the information of that period on Twitter.
К 11:30 UTC зонд снизился до высоты 9700 м над астероидом
小惑星探査機「はやぶさ2」‏Подлинная учетная запись @haya2_jaxa 4 мин. назад

【DO-S01】3月7日 20:30(JST)、高度が9700mくらいになりました。
07.03.2019 в 13:30 UTC высота сабжа над астероидом около 7000 м. Постепенно Рюгю "ближеет". Это уже 12-й раз, когда сабж находится на подобном расстоянии от астероида.
小惑星探査機「はやぶさ2」‏Подлинная учетная запись @haya2_jaxa 5 мин. назад

【DO-S01】3月7日 22:30(JST)、高度が7000mくらいになりました。少しずつリュウグウが大きく見えてきました。この距離に近づくのは今回が12回目です。­

小惑星探査機「はやぶさ2」‏Подлинная учетная запись @haya2_jaxa 7 ч. назад

【DO-S01】3月8日 06:30(JST)、運用は順調に進んでいます。探査機は予定通りに昨日23:47(JST)に減速を行い、0.1m/sでリュウグウに接近中です。現在の探査機高度は2200mほどです。

HAYABUSA2@JAXA‏ @haya2e_jaxa 7 ч. назад

[DO-S01] On March 8 at 06:30 JST, the operation is proceeding smoothly. The spacecraft slowed as scheduled at 23:47 JST yesterday and is approaching Ryugu at 0.1 m/s. The current altitude is about 2200m.
HAYABUSA2@JAXA‏ @haya2e_jaxa 2 ч. назад

[DO-S01] March 8 at 11:34 JST. The altitude of the spacecraft has passed 500m and we reached the GATE 3 checkpoint. GO/NOGO judgement was passed and the spacecraft will continue to descend!

2 ч. назад

[DO-S01] March 8 and 12:15 JST. The altitude of the spacecraft is now 185m.

2 ч. назад

[DO-S01] This is the navigation image on 3/8 at ~12:04 JST. Ryugu now fills the field of view! On the navigation image site, the images are brightening due to the opposition effect, so we adjusted the brightness correction setting for the ground processing http://www.hayabusa2.jaxa.jp/en/galleries/onc/nav20190307/ …

2 ч. назад

[DO-S01] March 8 at 12:31 JST. The spacecraft altitude value received in the control room is now 90m.

1 ч. назад

[DO-S01] March 8 at 12:42 JST. The value of the spacecraft altitude received in the control room is now 25m.
HAYABUSA2@JAXA‏ @haya2e_jaxa 1 ч. назад

[DO-S01] March 8 at 12:43 JST. We received confirmation that the spacecraft has begun to rise. There is clapping in the control room!

1 ч. назад

[DO-S01] The lowest altitude reached by Hayabusa2 was 22m (preliminary figures) at 12:42 JST (ground reception time) and 12:24 JST (onboard time).
HAYABUSA2@JAXA‏ @haya2e_jaxa 2 ч. назад

[DO-S01] March 8 at 15:00 JST. The last shift of the operation has begun. There is still work to be done, but Project Manager Tsuda has declared the descent operation a success. The spacecraft continues to rise at a speed of about 50cm/s.
The Descent Observation (DO-S01)

Now that our first touchdown, TD1-L08E1, has been completed successfully, we are considering a second touchdown at candidate site, S01. In order to examine the area of the new S01 touchdown candidate site in detail, we will perform a Descent Observation and bring Hayabusa2 closer to the asteroid surface. This will be the “DO-S01” operation (DO = Descent Observation) and the altitude of the spacecraft will drop to about 23m above the S01 area. The operation will take place from March 6 to 8, 2019. On March 6, preparation work for the descent will be begin and the descent will start on March 7, reaching he lowest planned altitude on March 8.

The S01 region is shown in Figure 1. S01 is near the equator of Ryugu and about 800m to the east of the first touchdown site (nicknamed “Tamatebako”). When candidate sites for the first touchdown were first sel ected (in August 2018 ), L08 (the region around our touchdown site) seemed the most promising and the S01 site was not chosen. This was because we were searching for areas over 100m across that were as flat as possible. Since such a wide region was not found on Ryugu’s surface, we searched out smaller flat regions. Among these, S01 seems to be the best site. However, we do not yet know is S01 is suitable for touchdown until we take a closer look. For this, we will descend in the DO-S01 operation.

[Open in a separate window]
Figure 1: Location of the region S01. This is 800m east of the first touchdown point. (Image credit: JAXA)

The DO-S01 operation schedule is shown in Figure 2. The spacecraft will begin descending on March 7 at 13:27 (JST, onboard time: times below are stated similarly) at a speed of 0.4m/s. The speed will then be reduced to 0.1 m/s around 23:47 on the same day. Continuing descent at this rate, we will reach our lowest altitude at around 12:22 on March 8 and then immediately begin to rise. The altitude of this lowest point will be about 23m. Please note that the times stated here are the planned values but the actual operation times may differ.

[Open in a separate window]
Figure 2: Schematic diagram of the DO-S01 operation. Note that the times given here may differ fr om the actual operation. (Image credit: JAXA).

Hayabusa2 project
Mar. 8, 2019

★ Hayabusa2 status (week of 2019.2.25) ★

Immediately after returning to the “home position” at a 20km altitude after the TD1-L08E operation on 2/23, we began a BOX-C operation in which the spacecraft descends to an altitude of about 5km. As one of the observations in this this operation, we observed around the Otohime boulder. We also downloaded the data obtained by the last touchdown operation (TD1-L08E) and from this BOX-C operation, as well as checking the health of the bus equipment for next week’s "Descent Observation” operation (DO-S01). We had many days of bad weather, and the operation time at the Usuda station was shortened due to wet snow in a late winter. Despite this, we managed many operations in a short time. The spacecraft began to rise back towards the home position on 3/1.

2019.3.6. T.T.
HAYABUSA2@JAXA‏ @haya2e_jaxa 2 ч. назад

Last week Hayabusa2 descended to observed the S01 area near the Kolobok Crater [DO-S01]. This image sequence was captured by the wide-angle ONC-W1 during the descent, down to an altitude of 22m. Where should we touchdown after “Tamatebako” (nickname for our TD point)?

Нет доступных к воспроизведению файлов (0:04)
Mar. 15, 2019

★ Hayabusa2 status (week of 2019.3.4) ★

This week, we conducted the “Descent Observation” operation (DO-S01) from 3/6 to 3/8 in order to observe a future touchdown candidate site (S01) in detail. This was the first descent to an altitude of 22m since the 2/22 touchdown. In the first half of the week, we adjusted the pressure of the RCS (thrusters) and found them to be in good condition. As the Optical Navigation Camera (ONC-W1) appeared to be dusty from the previous touchdown, we did not know if there would be any issues during this descent with the camera or other instruments that we would have to deal with. Luckily, all devices worked normally and we obtained detailed data of S01. The spacecraft returned to the home poison on 3/9 and we are now preparing for the next “crater search” operation (CRA1).

2019.3.13 C.H.

JAXA | 宇宙航空研究開発機構

Опубликовано: 19 мар. 2019 г.
Видео с камеры ONC-W1 при первой посадке

Серия изображений, снятых сразу после приземления (TD) широкоугольной оптической навигационной камерой (ONC-W1) зонда «Hayabusa 2» (дата съемки: 29 февраля 2019 года (JST), высота над поверхностью: прибл. От 6 до 25 м).
https://www.youtube.com/watch?v=9mROuMVzcwY (0:07)
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