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Galileo images and mosaics of Europa
tedstryk
post May 21 2007, 12:46 AM
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Exploitcorporations has a spectacular collection on her Flickr site.


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Exploitcorporati...
post May 21 2007, 01:22 AM
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Hi Phil. All of those mosaics are in reduced-scale form at the flickr link at the bottom of my posts now...the site they had been linked to was deleted in my long absence last summer. I will eventually have those dead links connected to the flickr page, and hopefully get those images up there at full size once I scrape enough change out of my sofa to get a paid account. biggrin.gif


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Exploitcorporations on Flickr (in progress) : https://www.flickr.com/photos/135024395@N07/
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tty
post May 21 2007, 05:58 AM
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QUOTE (PhilHorzempa @ May 21 2007, 01:59 AM) *
It appears that the host for those data may no longer
exist, as such.


As always in such cases: try the Wayback Machine (http://www.archive.org/index.php). At least one of the mosaics is available there.
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MarcF
post May 21 2007, 10:16 AM
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Here is one mosaic I really like and which I found only recently:

http://berlinadmin.dlr.de/HofW/nr/080/

Just 4 pictures assembled out of 30 taken during E19 in order to search for plumes.
Anyway, the perspective is amazing !
Marc.
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ugordan
post May 21 2007, 12:10 PM
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It's so nice to see mosaic footprints aligning nicely in Galileo imagery. That's what a scan platform and a fast camera gives you, I guess. Were it not for forced JPEG-like compression, the imagery would have been very crisp. The PSF of the Galileo SSI camera was pretty tight and images could be sharpened nicely. Galileo may have had a lower resolution CCD than Cassini, but the image crispness more than compensated for it. It really was a capable camera...

All the more reasons to regard the loss of the HGA as catastrophic. sad.gif


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tedstryk
post May 21 2007, 01:21 PM
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Take a look at the raws from the lunar flybys. Gives you an idea of what could have been done had the antenna opened.


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MarcF
post May 24 2007, 10:00 PM
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May be this is not really new, but I just found it on the USGS planetary nomenclature site:
The big albedo features (bright plains and mottled terrains) on Europa have now official names (as Regio):


Name (LAT / LON / DIAM) :

Annwn Regio (20.0 / 320.0 / 2,300)

Argadnel Regio (-14.6 / 208.5 / 1,900)

Balgatan Regio (-50.0 / 30.0 / 2,500)

Dyfed Regio (10.0 / 250.0 / 1,750)

Falga Regio (30.0 / 210.0 / 2,500)

Moytura Regio (-50.0 / 294.3 / 483)

Powys Regio (0.0 / 145.0 / 2,000)

Tara Regio (-10.0 / 75.0 / 1,780)

I already knew about Argadnel and Moytura Regiones, but the other names seem to be quite new.
Some new crater and Lineae names have also been assigned.
Marc.
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ugordan
post Dec 13 2009, 09:10 PM
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Here's my version of the Europa 14ESGLOCOL01 mosaic using all color that was available. A lot of synthetic color at places, the terminator is pretty much only green filter data. Too bad about that huge gouge of missing data at upper left.


Color balance was roughly based on a Cassini RGB image showing pretty much an identical vantage point. Still slightly exaggerated colors, I think.


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CAP-Team
post Dec 13 2009, 10:36 PM
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Nice work!
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tedstryk
post Dec 13 2009, 11:51 PM
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Good work. I primarily stole from the G-1 mosaic to fill that nasty gap.


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ElkGroveDan
post Dec 14 2009, 12:35 AM
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That is a fantastic image. It sure emphasizes the "bloodshot eye" appearance of Europa (but I have to go from memory as it has been years since I went to a college fraternity party).


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nprev
post Dec 14 2009, 12:44 AM
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Really amazing work, G. The long troughs near the terminator really stand out in this view; don't recall seeing them as well in previous global mosaics.


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DrShank
post Dec 15 2009, 12:52 AM
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QUOTE (nprev @ Dec 13 2009, 06:44 PM) *
Really amazing work, G. The long troughs near the terminator really stand out in this view; don't recall seeing them as well in previous global mosaics.


the long troughs are part of a global pattern. several other troughs elsewhere form part of a set of two giant circles
on opposite sides of the moon. They actually match the stress patterns produced if you rotate Europa's floating ice shell
almost 90 degrees (aka polar wander).
check out the story at http://www.lpi.usra.edu/science/schenk/europaCropCircles/

paul


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machi
post Dec 24 2009, 10:44 AM
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Merry Christmas to everyone on the site!

(It's one of the highest resolution mosaic of Europa from Galileo, with resolution around 10 m/pix horizontal. Artificially colorised by average color of this regio (Lat. -8.55;Long. 215))
Attached thumbnail(s)
Attached Image
 


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Decepticon
post Dec 24 2009, 07:10 PM
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^ That just made my day! Amazing view.

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