Rosetta flyby of Asteroid Lutetia |
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Rosetta flyby of Asteroid Lutetia |
| Guest_cassioli_* |
 Jul 23 2010, 04:17 PM
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#136
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can you image ESA using same policy on its images?
 http://www.jpl.nasa.gov/news/news.cfm?rele...mp;auid=6688535 QUOTE Advanced users with large bandwidth, powerful computers and software capable of handling images in the gigabyte range can download the full-resolution map in sections at: http://www.mars.asu.edu/data/thm_dir_100m .
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Jul 23 2010, 04:41 PM
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#137
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 The Poet Dude  Group: Moderator Posts: 5546 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
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Jul 23 2010, 04:56 PM
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#138
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Senior Member Group: Members Posts: 4508 Joined: 5-April 05 From: Canada Member No.: 227 |
And here too:
http://global-data.mars.asu.edu/bin/hrsc.pl (Zoom in, select an image, click on its thumbnail and it opens a zoomify-type window which lets you go in to full resolution like the HiRISE or LROC viewers) Actually that wonderful Themis page linked to in the quote box just above also has that kind of zoomify version if you click on 'Interactive Map'. Saves on the gigabyte downloads! Phil -------------------- ... because the Solar System ain't gonna map itself.
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Jul 25 2010, 08:45 PM
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#139
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 Member Group: Members Posts: 660 Joined: 9-February 07 Member No.: 1700 |
How did the encounter affect Rosetta's path? Did the velocity/trajectory change much? I've been poking around the ESA site, and scanned thru this thread, not finding answers. Understandably, all the recent articles emphasize the science and details of the encounter itself.
"Swing by" is used to describe Rosetta's previous close encounters with Earth and Mars, as opposed to "flyby" here. I presume that denotes proximity and scientific priority. |
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Jul 25 2010, 08:58 PM
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#140
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 Senior Member Group: Members Posts: 1146 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
I think it is too early to tell. But from the latest status report
QUOTE The ultra-stable oscillator (USO) is ON/muted since DOY 032/2010. The RSI team will use the two-way radiometric data acquired during the closest approach phase with a 70-metre ground station radio dish to estimate the mass and the density of the asteroid (21) Lutetia, thus answering one of the most intriguing scientific questions. -------------------- I'm one of the most durable and fervent advocates of space exploration, but my take is that we could do it robotically at far less cost and far greater quantity and quality of results.
James Van Allen |
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Jul 25 2010, 10:50 PM
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#141
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 Member Group: Members Posts: 508 Joined: 10-October 06 From: Maynard Mass USA Member No.: 1241 |
Closest approach was at a distance of 3,162 km (1,977 miles) -- that is the distance between Boston and Denver -- or between Paris and Cairo - the closing rate was 15km/sec (!) The amount of bend (and/or speedup or slowdown) to Rosetta's trajectory due to the encounter will be minuscule, but somebody at ESA will measure it! We will have to see what the USO says....
-------------------- CLA CLL
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Jul 26 2010, 10:17 AM
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#142
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 Member Group: Members Posts: 196 Joined: 17-February 07 From: ESAC, cerca Madrid, Spain. Member No.: 1743 |
FYI, I checked with the science team, and there will not be any more images released from the flyby until after the initial results are presented at a conference in September.
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cndwrld@yahoo.com |
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Jul 26 2010, 04:19 PM
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#143
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 Bloggette par Excellence Group: Admin Posts: 3958 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
Thanks for checking on that. Which conference? Is it EPSC in Rome?
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Jul 26 2010, 04:26 PM
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#144
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Senior Member Group: Members Posts: 1146 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
the real question is: how much time after the conference?
-------------------- I'm one of the most durable and fervent advocates of space exploration, but my take is that we could do it robotically at far less cost and far greater quantity and quality of results.
James Van Allen |
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Jul 26 2010, 07:08 PM
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#145
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 Senior Member Group: Admin Posts: 4495 Joined: 15-March 05 From: Sloughhouse, CA Member No.: 197 |
QUOTE (cndwrld @ Jul 26 2010, 02:17 AM)  there will not be any more images released from the flyby until after the initial results are presented at a conference in September. September of what year? -------------------- If Occam had heard my theory, things would be very different now.
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Jul 26 2010, 07:33 PM
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#146
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 Administrator Group: Chairman Posts: 13227 Joined: 8-February 04 Member No.: 1 |
I'm assuming Europlanet. And then it'll be an image or two in papers and nothing more.
I've going a different route. Rosetta has an awesome Navigation camera - in the hands of the same sorts of people who look after MEX's VMC. I wonder if they'll be more data share friendly. |
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Jul 26 2010, 07:41 PM
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#147
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Senior Member Group: Admin Posts: 4495 Joined: 15-March 05 From: Sloughhouse, CA Member No.: 197 |
Good point Doug. MEX's VMC has been a real treat. Kudos to their team for that.
-------------------- If Occam had heard my theory, things would be very different now.
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Jul 27 2010, 12:31 AM
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#148
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 Member Group: Members Posts: 393 Joined: 23-February 07 From: Occasionally in Columbia, MD Member No.: 1764 |
QUOTE (Paolo @ Jul 25 2010, 04:58 PM) I think it is too early to tell. Actually there was a brief report at COSPAR in Bremen on thursday evening. Martin Patzold reported the Doppler results. If I recall correctly the velocity change was of the order of 0.3mm/s, which translated into a density of 2500 kg/m3 with large error bars (in part because they don't have a volume from imagery yet) There is also an ambiguity in the retrieval of the gravity figure due to uncertainty in the flyby distance (which again further analysis - the encounter was just days before the meeting after all - will improve) What I thought was cool was that the Doppler profile was actually dominated by the slew of the high gain antenna.... I guess it moves by 0.1-1m over the course of an hour or so, so that seems about right |
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Jul 27 2010, 07:06 AM
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#149
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Member Group: Members Posts: 196 Joined: 17-February 07 From: ESAC, cerca Madrid, Spain. Member No.: 1743 |
QUOTE (elakdawalla @ Jul 26 2010, 06:19 PM) Thanks for checking on that. Which conference? Is it EPSC in Rome? Yup, that's the one. I'm going this year, so I'm looking forward to their show. -------------------- --
cndwrld@yahoo.com |
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Jul 27 2010, 07:23 AM
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#150
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 Member Group: Members Posts: 555 Joined: 27-February 08 From: Heart of Europe Member No.: 4057 |
"Rosetta has an awesome Navigation camera - in the hands of the same sorts of people who look after MEX's VMC. I wonder if they'll be more data share friendly."
Question is, if some data from NC was transferred to Earth. But NC looks promising for future 67P/Čurjumov-Gerasimenko orbits. "density of 2500 kg/m3" So Lutetia is probably C asteroid? -------------------- |
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