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ESA Rosetta, news, updates and discussion
Guest_AlexBlackwell_*
post Nov 30 2006, 08:07 PM
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For those interested in this kind of thing, a special issue of Space Science Reviews is in the works that will publish several Rosetta-related papers, mostly dealing with the instruments. Several of these papers are in press (i.e., "Online First"), and, for a limited time, SpringerLink is offering free access for non-subscribers, though one may have to register (freely).

Also, note that a paper on the James Webb Space Telescope was just published, and I believe access is free to this one as well.
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stevesliva
post Dec 1 2006, 05:06 AM
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I saw a passing mention of Phobos and Deimos observations... will these improve visual imagery/catrography, or does Rosetta have some new instruments to bring to bear... or both?
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ustrax
post Dec 1 2006, 04:55 PM
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QUOTE (stevesliva @ Dec 1 2006, 05:06 AM) *
I saw a passing mention of Phobos and Deimos observations... will these improve visual imagery/catrography, or does Rosetta have some new instruments to bring to bear... or both?


Here's everything Rosetta's has to give...


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IM4
post Dec 5 2006, 07:04 PM
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QUOTE (mchan @ Nov 30 2006, 04:45 AM) *
The ESA Rosetta website has a list of the various planetary and asteroid flyby's and their dates, but I did not find a graphic / plot of the trajectory. Is there a figure of the trajectory on ESA (or another public) website that shows the flyby's similar to the figure on the Messenger website for the Messenger mission --
http://messenger.jhuapl.edu/the_mission/trajectory.html


I recommend you download this file (3 Mb). It is mostly about planned plasma science but also contains a pair of schematic graphics like those I’ve attached to the message. On the image you can see Mars, orbits of Phobos (red), Deimos (green), estimated orbits of Mars Express (black), MGS (cyan), Mars Odyssey (yellow) and of course Rosetta trajectory (blue) - the spacecraft will approach Mars from the dayside (from the right) and make a swingby on the opposite side of Mars. There are also several useful figures and groundtrack in the file, so I can derive approximate timeline and summarize it as follows :

24 Feb. 2007 07.48 UT – flyby phase begins
25 Feb. 2007 01.00 UT – close approach to Mars begins
- 01.30-01.43 UT - Rosetta flies over Arabia Terra (h>3000 km)
- 01.45-01.50 UT – Rosetta crosses Chryse Planitia (2000>h>500 km)
- 01.55 UT – closest approach over Tempe Terra ~ 300E, 45N (h=250 km)
- 01.56 UT – Rosetta enters Mars shadow
- 02.05 UT – Rosetta flies over Olympus Mons (h=3000 km)
- 02.20 UT – Rosetta leaves Mars shadow (h=10000 km)
25 Feb. 2007 20.03 UT – flyby phase ends

It’s a real pity that significant part of the closest flyby happens in the nightside. Visual imaging will be possible only at greater distance and with moderate resolution, but I still hope that VIRTIS’s IR –cam can capture magnificent photo of martian plains [fixed:)] and mountains throughout the entire flyby. Another instruments are also expected to obtain interesting results.
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ugordan
post Dec 5 2006, 07:10 PM
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QUOTE (IM4 @ Dec 5 2006, 08:04 PM) *
magnificent photo of martian planes

Don't let H0ag1and hear you! wink.gif Thanks for the doc, btw.


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mchan
post Dec 6 2006, 07:26 AM
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IM4,

Thanks for the doc.
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Rakhir
post Jan 26 2007, 03:19 PM
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Lutetia asteroid in Rosetta’s spotlight

An animated sequence of Lutetia imaging and an image of Mars and the Milky Way taken by OSIRIS.
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elakdawalla
post Jan 26 2007, 05:18 PM
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I can't get RealPlayer or Windows Media Player to play the high-res version of the animation. Is anyone else having more success?

I wish ESA would post these things in a format that I could more easily repost. I know that animated GIF isn't the world's best animation format but it's something that I can pull individual frames out of and resize for posting... sad.gif

That Mars and Milky Way image is really gorgeous, though!

--Emily


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nprev
post Jan 26 2007, 05:35 PM
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I can't get it to work, either, Emily; must be the site itself.

Agree with you, though: beautiful pics! smile.gif Almost tempted to infer that the dark spot on Mars is Syrtis Major, but in all probability it's just an artifact.


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ustrax
post Jan 26 2007, 05:37 PM
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Emily,

you have to download the DivX viewer in order to see it.

EDITED: ...And the asteroid's details are quite remarkable... smile.gif


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ustrax
post Jan 26 2007, 05:42 PM
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QUOTE (IM4 @ Dec 5 2006, 07:04 PM) *
Another instruments are also expected to obtain interesting results.


One of the things I'm expecting with greater curiosity is the use of instruments from the Philae lander on Mars observations, it could give us some hints on what it could retrieve from the surface of the comet... smile.gif


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"Ride, boldly ride," The shade replied, "If you seek for Eldorado!"
Edgar Alan Poe
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Guest_AlexBlackwell_*
post Jan 29 2007, 08:51 PM
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Ongoing Preparations for Mars Swing-by
29 Jan 2007 09:29
Report for Period 13 January to 26 January 2007
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yaohua2000
post Feb 3 2007, 04:23 PM
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Rosetta will be soon exactly 10,000,000 miles away from Mars at 2007-Feb-04 05:26:33 UTC.

The spacecraft is currently going almost directly toward Mars with a speed of about 20560 mph.
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ugordan
post Feb 3 2007, 04:35 PM
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So, what is a more significant figure: 10,000,000 miles or 10,000,000 km? tongue.gif


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djellison
post Feb 3 2007, 04:36 PM
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What's a mile?

(well - it's a European spacecraft after all smile.gif )


Doug
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