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★ Hayabusa2 status (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.
(Full text in image and can also be found online here: http://www.hayabusa2.jaxa.jp/en/news/status/ ) -
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)?
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★ Hayabusa2 status (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...
Full report in the attached image! -
[DO-S01] The spacecraft continues to rise towards the home position. We are scheduled to return to the home position at around 11:00 JST tomorrow (March 9). Thank you all for your support for this operation!
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[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.
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[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).
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[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!
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[DO-S01] March 8 at 12:42 JST. The value of the spacecraft altitude received in the control room is now 25m.
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[DO-S01] March 8 at 12:41 JST. The value of the spacecraft altitude received in the control room is now 30m.
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[DO-S01] March 8 at 12:31 JST. The spacecraft altitude value received in the control room is now 90m.
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[DO-S01] March 8 at 12:23 JST. The spacecraft should now have reached its lowest altitude.
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[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/ …
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[DO-S01] March 8 and 12:15 JST. The altitude of the spacecraft is now 185m.
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[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!
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[DO-S01] March 8 at 10:00 JST. The spacecraft altitude is now about 1000m.
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[DO-S01] March 8 at 8:30 JST. The spacecraft altitude is about 1500m.
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[DO-S01] March 8 at 07:00 JST. Shift operation has changed from the midnight shift to the day shift. We will operate at the lowest altitude during this shift.
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[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.
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[DO1-S01] On March 7 at 22:30 JST, the shift is changing to the late night ~ morning operation team members. The spacecraft is continuing to descend. During this shift, we will slow the descent speed.
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[DO1-SO1] March 7 at 22:30 JST. Ryugu is gradually increasing in size. The altitude is now about 7000m. This is the 12th time we have approached at this distance.
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