Mission: Hayabusa 2 |
Mission: Hayabusa 2 |
Guest_mcmcmc_* |
Jul 12 2018, 08:28 PM
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#466
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Guests |
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Guest_mcmcmc_* |
Jul 12 2018, 08:31 PM
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#467
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Guests |
If anybody wants to try texturing the models...
https://wikis.utexas.edu/display/specify6/T...rlay+in+MeshLab http://www.hayabusa2.jaxa.jp/topics/20180711je/img/fig1.jpg http://www.hayabusa2.jaxa.jp/topics/20180711je/img/fig2.jpg |
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Jul 13 2018, 04:03 AM
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#468
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Founder Group: Chairman Posts: 14431 Joined: 8-February 04 Member No.: 1 |
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Guest_mcmcmc_* |
Jul 13 2018, 07:50 AM
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#469
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Guests |
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Jul 18 2018, 07:31 AM
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#470
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
ESA's take on the shape of Ryugu and Steins:
Spinning-top asteroids, from Rosetta to Hayabusa2 – and maybe Hera |
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Jul 18 2018, 10:15 PM
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#471
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Junior Member Group: Members Posts: 80 Joined: 18-October 15 From: Russia Member No.: 7822 |
Polar views of Asteroid Ryugu.
(this is all my own effort, all mistakes are mine) -------------------- |
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Jul 19 2018, 05:40 AM
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#472
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Solar System Cartographer Group: Members Posts: 10122 Joined: 5-April 05 From: Canada Member No.: 227 |
Excellent work! Do you have a cylindrical projection as well?
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Jul 19 2018, 08:41 AM
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#473
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Member Group: Members Posts: 238 Joined: 15-January 13 Member No.: 6842 |
Today's JAXA press conference on the current status of Hayabusa 2: http://www.youtube.com/watch?v=HX2TBQV1yyE
Video description reads: "The asteroid explorer "Hayabusa 2" is currently checking the functions of various equipment after arrival while maintaining the position about 20 km from the asteroid Ryugu (Ryugu). In this briefing session, we will explain the current situation of "Hayabusa 2", if observation data of Ryugu has been obtained, we will explain it." Anyone here knowlegeable in Japanese could please provide the main points and captions to the images? Here's the pdf with the slides: http://fanfun.jaxa.jp/jaxatv/files/20180719_hayabusa2.pdf Couple of interesting ones: Longitude zero degree point of Ryugu. Point selected as longitude zero degree. Reason for selection: · Good visibility · The center is easy to ask · Undulations are conspicuous · Close to the equator Mt Fuji and Ryugu from 20 km away. I hope they'll provide an English version of this pdf. -------------------- Curiosity rover panoramas: http://www.facebook.com/CuriosityRoverPanoramas
My Photosynth panoramas: http://photosynth.net/userprofilepage.aspx...;content=Synths |
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Jul 19 2018, 09:46 AM
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#474
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Member Group: Members Posts: 817 Joined: 17-April 10 From: Kamakura, Japan Member No.: 5323 |
Here are my translaions up to page 13. I may translate some more as JAXA seem to be releasing newer(?)
explanations. P6: H2 is now descending from HP, i.e., from BOX-A to BOX-C P8: Ryugu begins to show features 1. very dark and spin axis is perpendicular to orbital plane 2. craters, many blocks of rock, as large as 130m diam., trench like feature P10: Shape models by two different groups with SfM and SPC methods P11: Longtitude zero point selection and reasons 1. project members noticed, earlier on, as a prominent point with two rocks above and below, good for a landmark 2. these two rokcd are close to the equator and can serve as a landmark NB: Here, north pole is up and south pole is down P12: Mt. Fuji and Ryugu as seen from a distance of 20km away (movie) P13: Rock distribution, left pic at 300 degrees, right pic at 60 degrees 1. fairly large rocks are seen for such a small astronomical body, possibly fractures of mother bodies re-assembled 2. number density of rocks varies greatly from one place to another 3. touch down location dependent on rock number density 4. helpful in understanding of surface materials migration P |
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Jul 19 2018, 10:43 AM
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#475
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Member Group: Members Posts: 817 Joined: 17-April 10 From: Kamakura, Japan Member No.: 5323 |
Translation continues. Prof Yoshikawa said in the video that H2 is, as at the time of press briefing, at 13km height,
trying to go down to 6km height very shortly. All this is actually on the few pages from page 29, hence this translation. P29: Mission schedule as follows. 1. Regular observation is from HP, and that is BOX-A. at height of 20km. 2. Lowering of H2 is as follows. 2.1 BOX-C operation: 17 o 23 July, reaching minimum height of 6km between 20 and 22 July 2.2 Further lowering to middle height between 1 and 2 August, reaching minimum height of 5km on 1 August 2.3 Gravity measurement descent between 6 and 7 August, reaching minimum height of 1km on 7 August 3. H2 touring operation with BOX-B, taking place end August. P |
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Jul 19 2018, 10:53 AM
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#476
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Member Group: Members Posts: 817 Joined: 17-April 10 From: Kamakura, Japan Member No.: 5323 |
P30: BOX operations
1. Regular observation is BOX-A, at 20km height 2. BOX-B operation is meant for touring, hovering also horizontally for observation from different angles. Horizontal displacement is +/- 20km and in R-Earth Z direction, +/- 10km from HP 3. BOX-C operation is meant for hovering elongated vertically to allow closer observation P |
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Jul 19 2018, 11:04 AM
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#477
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Member Group: Members Posts: 817 Joined: 17-April 10 From: Kamakura, Japan Member No.: 5323 |
On page 30 I forgot to translate Y direction displacement.
With A it is 1km+/-500m With B it is 30km +/- 10km With C it is 1km +/- 500m Page 31: Horizontal scale is time, and vertical is hovering height. 17th July (left) to 23 July (right) Page 32: mddile height operation, 10:00 and 20:00 on 1 August to 08:00 and 18:00 on 2 August, these refer to the points of reflexion on the diagram. P |
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Jul 19 2018, 11:08 AM
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#478
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Member Group: Members Posts: 817 Joined: 17-April 10 From: Kamakura, Japan Member No.: 5323 |
Next press briefings are 2 and 23 August.
I will translate a little more, if JAXA are not quick enough to give their own translated version. P |
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Jul 19 2018, 12:30 PM
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#479
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Senior Member Group: Members Posts: 2424 Joined: 30-January 13 From: Penang, Malaysia. Member No.: 6853 |
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