Хаябуса !

[X]

Summary of comment of Kawaguch Project Manager concerning Minerva...

Ребята, откуда Вы черпаете информацию? Я все глаза проглядел по сайтам японским  :roll:, не обнаружил такого. Поделитесь URL-ами, пожалуйста :?

[Agent]

Summary of comment of Kawaguch Project Manager concerning Minerva...

Ребята, откуда Вы черпаете информацию? Я все глаза проглядел по сайтам японским  :roll:, не обнаружил такого. Поделитесь URL-ами, пожалуйста :?

Есть форум на space.com
тама тоже коллективный разум, ток англоговорящий
Вот где Хаябуцу обсуждают http://uplink.space.com/showflat.php?Cat=&Board=missions&Number=348809&page=0&view=collapsed&sb=5&o=0&fpart=

[foogoo]

Результаты сближения 12-го ноября. Разрешение 2 см на пиксел.

[X]

from http://www.isas.jaxa.jp/e/enterp/missions/hayabusa/today.shtml

Today's HAYABUSA
2005/11/19(JST)
 

Distance from Earth :  288,488,640 km
Distance from Itokawa :  2.0 km
* We are going to decent for the 1st touch-down.
* At the altitude of 40 m before the touch-down, Hayabusa will release
a target marker with 880,000 signatures from people all over the world.
- Start decent - 21:00(JST)
- Start vertical decent from 400 m altitude - 3:30(JST)
- Final decision, Go or No-Go - 5:00(JST)
- Touch-down - 6:00(JST)

[X]

from http://www.isas.jaxa.jp/e/enterp/missions/hayabusa/today.shtml

Today's HAYABUSA
2005/11/19(JST)
 

Distance from Earth :  288,488,640 km
Distance from Itokawa :  2.0 km
* We are going to decent for the 1st touch-down.
* At the altitude of 40 m before the touch-down, Hayabusa will release
a target marker with 880,000 signatures from people all over the world.
- Start decent - 21:00(JST)
- Start vertical decent from 400 m altitude - 3:30(JST)
- Final decision, Go or No-Go - 5:00(JST)
- Touch-down - 6:00(JST)

 на заметку All :
1) японское время на 6 часов опережает московское. Посадка будет около московской полуночи.
2) на http://www.isas.jaxa.jp/home/hayabusa-live/ идет текстовый прямой эфир на японском и английском языках.

по состоянию на 18.22 мск высота составляла 800 м :

[X]

На 2:30 JST высота 560 метров

[X]

22.30 мск - высота 450 метров
23.00 мск - высота 370 метров,  решение принято - Хаябуса пошла на спуск !

[X]

23.10 мск - высота 290 метров
23.20 мск - высота 230 метров
23.30 мск - высота 160 метров

Хаябуса снижается со скоростью ~10 см/с .  Зависание - в полночь на 50 метрах , касание запланировано на 00.30 мск. Скорость во время посадки составит 3-4 см/с

[Bell]

Ну вот, а мы там всякой хреновиной маемся...

Удачи японцам!

ЖЖ Хаябусы:
http://www.isas.jaxa.jp/home/hayabusa-live/index.php?catid=10&blogid=6

[X]

снимок Итокавы от 22.58 мск c расстояния 370 метров :


23.40 мск - высота 90 метров.
23.46 мск - высота 70 метров.
00.03 мск - выпущен маркер, хаябуса маневрирует в полностью автономном режиме
00.15 мск - японский блог окончательно сдох под наплывом зрителей.

[X]

00.09 мск  - Хаябуса пошла на подъем ! никто не знает почему, было ли касание  , все ждут телеметрии.

[X]

00.37 мск - телеметрия будет не скоро.  Хаябуса ушла из поля зрения станции DSN-21 в Голдстоуне , но еще  не появилась для станции в Усуде.  Все ровно как в сближении 4 ноября - непонятный глюк +  разрывы связи в самый ответственный момент.

[Дмитрий Виницкий]

Все понятно! пока не поздно, готовьте боеголовку потяжелее!

[Bell]

На блоге - тишина...
Доступен, но ничего не пишут с 23:40

[ratman]

Да - довольно драматично развиваются события...  :?
Как по мне - так похоже на софтверную проблему.
Будем надеяться, что пронесет.

http://5thstar.air-nifty.com/blog/2005/11/fate_of_hayabus.html
--------------

JAXA/ISAS is trying to touch down Hayabusa (MUSES-C) onto the asteroid Itokawa this morning. Apprarently some anomaly happened along the way and they are now trying to analyze the status. No detail information is released by JAXA as of this writing, so I'm trying to summarize what Mr. Matsuura wrote in his blog, who is a space journalist now in the press room of JAXA/ISAS.

All timeline below is in JST (GMT+9), as he wrote the message, not the timeline of the event itself.

04:54 JAXA confirmed Hayabusa received the decent command. Altitude 370m.
05:20 Altitude 250m. Hayabusa goes into autonomous operation mode.
05:30 Autitude 170m, velocity 10cm/s.
05:37 114m from the surface.
05:45 70m from the surface. Prof. Matogawa calls press room intermittently.

06:03 Hayabusa released the target marker, a bright small ball with about 880,000 names of people.

06:09 Hayabusa turned into ascent. Details unknown. Telemetry will arrive to Earth at 06:20. It was a miscommunication. It was a time Hayabusa might have turned into ascent.

06:37 Telemetry still not received. Parabolla is now being swticed from NASA DSN Gold Stone station to JAXA/ISAS Usuda station.

07:23 Prof. Matogawa addresses the media. The target marker has been released. It was confirmed Hayabusa went down to the altitude 17m with the autonomous mode. Shortly after, Hayabusa seems locked, not descending nor ascending (no Doppler shift in its beacon signal). Altitude of this event is unknown. Usuda station sent ascent command shortly after 7 o'clock, followed by the command to enter "Safe mode". No ascent observed as of this writing.

08:44 Situation not clear. Media briefing may be held around 9 o'clock.

08:51 Prof. Matogawa addressed the media. "Situation not improved. There were no responses to the ascent and safe mode commands sent from Usuda. No Doppler shift was observed. It requires two way link. The landing site rotated away to the far side of the Earth but we still receives the beacon from Hayabusa, so the possibility of Hayabusa being stucked on the surface of Itokawa is out. We keep receiving the beacon but it does not respond to the command from Usuda. We are trying to establish two way link using Hayabusa's low gain antenna. We just sent another command to switch to telemetry mode. We will know the result in 32 minutes."

09:36 Prof. Matogawa to the press room. They are now speculating the possibility of Hayabusa being stuck on the north pole of Itokawa. JAXA released interim timeline. The operator confirmed the release of the target marker at 05:46. Reading of the laser range finder was 17 m at 05:55.

09:45 The two way communication link was reestablished at 09:32 using the low gain antenna. Hayabusa is not in safe mode now.

10:28 Prof. Matogawa addresses media again. "In about 10 minutes we expect the first telemetry data from Hayabusa. The press conference originally scheduled at noon would have to be cancelled. The project manager prof. Kawaguchi would also like to postpone it until tomorrow." The media wanted to hold the press conference anyway. "The result of the anhalysis of what happened has to wait until tomorrow. Once we receive the telemetry, we will know whether it touched down, impactor has been injected, and such. We will let you know the status immediately. I would like prof. Kawaguchi to concentrate on his operation. Telemetry will arrive in every 40 minutes. I think I will give you the briefing in every hour or so. There were some speculations about why Hayabusa did not go into safe mode. While it was trying to touch down, it somehow hovered at a certain altitude (about 10 m) for a half hour. Hayabusa's movement was closely monitored by two-way Doppler signal but not shift has been observed. We speculated the temperature of Hayabusa went up considerably. The communication circuit might have experienced some kind of anomaly. It seems reasonable we re-established the communication once Hayabusa moved away from Itokawa." About the velocity monitoring with Doppler shift. "There are two methods, one is one-way Doppler shift using Hayabusa's signal, and two-way Doppler shift by measuring the response to the signal sent from Earth. Frequency of the signal from Hayabusa varies as the temperature of the communication circuit changes. Therefore we could not precisely measure the velocity without calibrations in one-way Doppler. To measure the velocity at a few cm/s, we need two-way Doppler."

12:12 Prof. Matogawa again. "Now we keep contact with Hayabusa with medium gain antenna. We started the communication with low gain antenna and enabled the medium gain. We will receive the house keeping data such as whether the impactor has been injected, around 1 o'clock. We will also know whether Hayabusa touched down. I will come back immediately when I know." The media: "Then we will have a lunch break until 1 o'clock..." Matogawa: "No, I won't take a break. I don't know the entire picture but they (operation team) knows the whereabout of Hayabusa. It's not returned to the home position yet." He is still being interviewed by media as of 12:23.

[Korel]

Появилась информация от 13.42, но все на японском...
Может кто-нибудь перевести?

[ratman]

http://5thstar.air-nifty.com/blog/2005/11/fate_of_hayabus.html
----------

13:42 Prof. Matogawa into the press room. "We still don't know whether it touched down or not. Hayabusa did go into the safe mode. We also know it now hovers futher away from the home positon. Hayabusa is now in safe mode, stabilizing itself with a gentle spin, with its solar array facing to the sun. Medium gain antenna transmits signal with an 18 dgrees cone. We receive the house keeping data only when the Earth is within its cone. Hayabusa is broadcasting its house keeping data with medium gain antenna repeatedly.
We don't know why it entered into the safe mode. It is not clear whether it received the safe mode command from Earth or not. Hayabusa has an option of going into the safe mode from its autonomous mode. This could also be the case.
Low gain antenna transmits the signal into every direction. So we didn't know Hayabusa was rotating. It was not before we received the signal from medium gain antenna that we realized it is rotating.
Usuda station ends contact with Hayabusa around 14:55. We plan to estabilsh the 3-axis atitude control before the contact through Usuda ends.
We hold the next DSN station, Madrid, Spain, from 17:25 to 22:00. After the next is Usuda, from 08:30 tomorrow morning to 14:55. We would like to establish the attitude control this afternoon.
Our current goals are 1) establish the attitude control and 2) attempt to go back to Itokawa again. We are evaluating which goal to perform and when."
Next briefing will be around 16:00, when Usuda station ends contact with Hayabusa.

[X]

А может Хабуяса вылетела в защищенный режим из-за преждевремнено столкновения с поверхностью, неправильное определение высоты? И автоматика расстерялась?

[ratman]

14:40 Mr. Matsuura's personal speculation based on the press briefings by JAXA/ISAS: "I got the impression that we did not experience such a strange hovering nor going into safe mode during the last three descent operations.
It may as well be the consequences of the event specific to this operation, namely the touch down!?
It could be due to the touch down that Hayabusa lost the attitude and entered into the safe mode??
Safe mode means the probe is safe. Anyway we are not in the worst situation."

15:46 Prof. Matogawa says the project manager Kawaguchi will show up at 4pm. Regaining the 3-axis attitude control seems not completed in time during the Usuda station communication. Press briefing will start at 4pm.

[Logan]

Японский зонд не смог совершить посадку на астероид
12:25 // 20.11.2005

Японское аэрокосмическое агентство ДЖАКСА сообщило, что по полученным с межпланетного зонда "Хаябуса" данным, по всей видимости, ему не удалось совершить посадку на поверхность астероида "Итокава" в 300 млн км от Земли. Он должен был взять пробы грунта и отправиться в обратный путь, сообщает ИТАР-ТАСС. По плану, соприкосновение "Хаябусы" с поверхностью малой планеты должно было произойти в 06:00 по местному времени. Когда аппарат находился в 40 метрах от "Итокавы", он сбросил шарик с отражателем, чтобы обозначить место посадки. Однако в примерно 10 метрах от поверхности зонд перестал управлять набором и снижением высоты и завис в воздухе. Связь с "Хаябуса" была потеряна, ее удалось установить только через 3,5 часа. После того, как был сделан вывод о том, что, вероятнее всего, конусообразное устройство для забора образцов грунта застряло в грунте, межпланетному зонду дали с Земли команду включить двигатель и отдалиться от астероида. После этого связь вновь была потеряна. По предположению агентства, аппарат сейчас двигается в противоположном от "Итокавы" направлении.