CE-2 flyby of Toutatis |
CE-2 flyby of Toutatis |
 Aug 25 2012, 04:27 PM
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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  |
I thought it was time to split the subject from the Moon forum.
Admins, can you move the relevant messages here? anyway, just out: an interesting blog article by Bill Gray explaining how he recovered the probe and how he computed the orbit yielding the 13 December flyby date Chang'e 2: The Full Story |
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Dec 15 2012, 02:12 PM
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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 |
this is what a Chang'e 2 CMOS webcam looks like. and some treat from earlier in the mission
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Paolo CE-2 flyby of Toutatis Aug 25 2012, 04:27 PM
Paolo a few more observations of Chang'e 2 (designat... Aug 27 2012, 10:02 AM TheAnt Interesting story thank you for sharing.
Mr Gray ... Sep 1 2012, 10:03 PM
rlorenz I don't suppose they'll rename the spacecr... Sep 1 2012, 10:19 PM Paolo I have got a copy of this paper presented at last ... Oct 7 2012, 08:37 AM tolis According to JPL's HORIZONS ephemeris service,... Oct 10 2012, 01:45 PM Paolo I saw it in November 1996 using a small, 114 mm te... Oct 10 2012, 03:15 PM tolis QUOTE (Paolo @ Oct 10 2012, 04:15 PM) I s... Oct 12 2012, 10:22 AM Paolo today on arXiv: Composition of Near-Earth Asteroid... Oct 11 2012, 07:00 AM Paolo to answer Phil Stooke's question in another th... Oct 28 2012, 08:43 AM Phil Stooke Excellent - thanks for this.
Phil Oct 28 2012, 01:38 PM Tom Tamlyn The link to Bill Gray's August 25 planetary.or... Oct 28 2012, 03:49 PM Paolo just tweeted by @asrivkin at the AGU meeting
QUOT... Dec 5 2012, 06:29 PM Phil Stooke Check out this e-poster from the current AGU meeti... Dec 5 2012, 07:10 PM Paolo I saw it. It's a pity that 2 pics will not be ... Dec 5 2012, 07:20 PM Phil Stooke No, but radar does that very well.
Phil Dec 5 2012, 07:51 PM Paolo speaking of which, the first radar image of the 20... Dec 5 2012, 08:04 PM Paolo from this post to the mpml asteroids and comets gr... Dec 6 2012, 08:15 AM machi So we can expect images with resolution ~100 m/pix... Dec 6 2012, 10:58 AM Explorer1 So the images will be the equivalent of what Deep ... Dec 6 2012, 11:19 PM machi Deep Space took images of Braille with resolution ... Dec 7 2012, 12:43 PM Paolo anyway, as the camera has two linear CCDs, a forwa... Dec 7 2012, 01:17 PM Phil Stooke Machi, that is Steins, not Braille.
And Paolo - d... Dec 7 2012, 02:11 PM Paolo QUOTE (Phil Stooke @ Dec 7 2012, 03:11 PM... Dec 7 2012, 07:56 PM machi QUOTE (Phil Stooke @ Dec 7 2012, 03:11 PM... Dec 7 2012, 03:11 PM Paolo third radar picture http://echo.jpl.nasa.gov/aster... Dec 8 2012, 08:46 AM machi According to this page, flyby distance will be aro... Dec 9 2012, 10:59 AM tasp I'm not thinking of any other 'rocks' ... Dec 9 2012, 01:21 PM Paolo Itokawa had been imaged by radar before Hayabusa a... Dec 9 2012, 01:23 PM machi QUOTE (tasp @ Dec 9 2012, 02:21 PM) I... Dec 9 2012, 02:34 PM Phil Stooke Comparing the Itokawa radar images and shape model... Dec 9 2012, 02:53 PM JimOberg Technical info is great. Hsieh hsieh.
Big pictur... Dec 9 2012, 05:47 PM Explorer1 The absence of news is business as usual over ther... Dec 9 2012, 08:38 PM JimOberg QUOTE (Explorer1 @ Dec 9 2012, 09:38 PM) ... Dec 10 2012, 06:14 AM Explorer1 Yes, I've read Don Mitchell's page on the ... Dec 10 2012, 06:32 AM Paolo there was a long article on the development of CE-... Dec 10 2012, 08:15 AM JimOberg QUOTE (Paolo @ Dec 10 2012, 09:15 AM) the... Dec 10 2012, 03:13 PM Paolo another long article in Chinese linked today on th... Dec 10 2012, 06:01 PM JimOberg QUOTE (Paolo @ Dec 10 2012, 07:01 PM) ano... Dec 10 2012, 08:01 PM stevesliva ^ Google Translate
... seems to be a blogger askin... Dec 10 2012, 08:13 PM elakdawalla Google translate worked for me. There's no new... Dec 10 2012, 08:13 PM JimOberg QUOTE (elakdawalla @ Dec 10 2012, 09:13 P... Dec 10 2012, 09:17 PM mcaplinger QUOTE (JimOberg @ Dec 10 2012, 02:17 PM) ... Dec 10 2012, 09:51 PM Phil Stooke http://echo.jpl.nasa.gov/asteroids/Toutati...2_pla... Dec 11 2012, 02:59 PM machi Very interesting images. Here is image pair from 9... Dec 11 2012, 05:06 PM Phil Stooke 15 years ago I made a map of Toutatis, using an ex... Dec 11 2012, 06:04 PM Paolo anybody knows whether ESA is providing tracking su... Dec 13 2012, 01:07 PM Greenish The images at http://echo.jpl.nasa.gov/asteroids/T... Dec 13 2012, 03:00 PM Phil Stooke I don't see anything in the online chinese pre... Dec 14 2012, 03:57 PM Paolo I have seen a release (in Chinese) on the site of ... Dec 14 2012, 04:14 PM machi I read on multiple Chinese pages, that they planne... Dec 14 2012, 04:43 PM Paolo be sure to check this!
http://www.youtube.com/... Dec 14 2012, 05:46 PM Phil Stooke The radar video is great - first time I have seen ... Dec 14 2012, 06:51 PM machi The video is great, but Toutatis looks somewhat di... Dec 14 2012, 07:53 PM Phil Stooke That's because of the bizarre geometry of rada... Dec 14 2012, 08:05 PM tedstryk Assuming it is better than the 2002 NY40 images, t... Dec 14 2012, 09:04 PM yaohua2000 Video: http://news.cntv.cn/china/20121215/100850.s... Dec 14 2012, 11:27 PM Cosmic Penguin Just in from the Chinese news TV reports an hour a... Dec 14 2012, 11:30 PM tedstryk Woah! That is better than I was expecting. W... Dec 14 2012, 11:35 PM machi Fantastic and great news!
Now we have another... Dec 14 2012, 11:56 PM Explorer1 Very fast release! I'm glad to have been w... Dec 15 2012, 12:06 AM elakdawalla I wonder, were these images taken with the webcam-... Dec 15 2012, 12:09 AM Paolo QUOTE (elakdawalla @ Dec 15 2012, 01:09 A... Dec 15 2012, 08:32 AM Phil Stooke 3.2 km? Amazing, just amazing. Solar panel monit... Dec 15 2012, 12:18 AM mcaplinger QUOTE (Phil Stooke @ Dec 14 2012, 05:18 P... Dec 15 2012, 12:28 AM JimOberg QUOTE (mcaplinger @ Dec 15 2012, 01:28 AM... Dec 17 2012, 01:57 PM elakdawalla I'm trying to figure out what the scale of the... Dec 15 2012, 12:38 AM machi My measurements are: long axis ~800 pix, short axi... Dec 15 2012, 12:59 AM Phil Stooke I can confirm that this view shows the long dimens... Dec 15 2012, 01:06 AM Phil Stooke Bringing out a bit more detail in the brighter are... Dec 15 2012, 01:26 AM machi Attempted comparison with Goldstone radar imagery. Dec 15 2012, 01:46 AM ElkGroveDan Is there any doubt that we are looking at two dist... Dec 15 2012, 02:37 AM Phil Stooke If this is an approach sequence, there may be a de... Dec 15 2012, 02:47 AM Stefan QUOTE (Phil Stooke @ Dec 15 2012, 03:47 A... Dec 15 2012, 11:58 AM elakdawalla Beginning to look at the image and try some early ... Dec 15 2012, 02:58 AM yaohua2000 More info: 20 Kbps at 7 million km, 90% data has b... Dec 15 2012, 03:01 AM tedstryk Thanks for posting that! I think you mean 5 m... Dec 15 2012, 03:07 AM Phil Stooke Shape model and slope map here:
http://echo.jpl.n... Dec 15 2012, 04:30 AM Paolo wow! China releases the first pics and I happe... Dec 15 2012, 07:37 AM Doc Outstanding Chinese performance. Thanks for postin... Dec 15 2012, 09:08 AM Tayfun Öner Here is a 3D PDF of the shape model. (It is heavil... Dec 15 2012, 09:30 AM machi Here is Chinese TV show dedicated to Toutatis flyb... Dec 15 2012, 11:14 AM Drkskywxlt Congrats to the Chinese! There's some dep... Dec 15 2012, 11:58 AM machi Yes, all images are almost equal (apart from size)... Dec 15 2012, 12:41 PM tolis Amazing stuff!
Apart from the sheer speed of ... Dec 15 2012, 02:07 PM Phil Stooke Comparison of the new image with the radar shape f... Dec 15 2012, 02:31 PM Paolo Chinese sources such as this http://www.stdaily.co... Dec 16 2012, 09:53 AM Cosmic Penguin Apparently the main camera was not powered on (nor... Dec 16 2012, 11:30 AM machi I have somewhat different informations about Chang... Dec 16 2012, 10:15 AM Paolo I don't want to belittle the CE-2 achievement,... Dec 16 2012, 12:01 PM mcaplinger QUOTE (Paolo @ Dec 16 2012, 05:01 AM) wha... Dec 16 2012, 04:29 PM dilo I tried to make a stereogram using the fourth and ... Dec 16 2012, 10:15 PM JimOberg QUOTE (Paolo @ Dec 16 2012, 01:01 PM) as ... Dec 17 2012, 02:05 PM machi We can look to the past. CE-2 flyby was in many wa... Dec 16 2012, 12:36 PM tedstryk It may also provide a bridge between what we are s... Dec 16 2012, 01:22 PM Phil Stooke "beside basic shape and topography, what can ... Dec 16 2012, 03:24 PM Paolo QUOTE (Phil Stooke @ Dec 16 2012, 04:24 P... Dec 17 2012, 09:39 AM tasp Appreciate the stereogram effort very much. I thi... Dec 17 2012, 04:40 AM JimOberg On a policy issue note, we must realize that China... Dec 17 2012, 02:09 PM |
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