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Unmanned Spaceflight.com _ Jupiter _ Galileo Europa Mosaics
Posted by: Exploitcorporations Jan 11 2006, 08:08 AM
http://conamera.byethost6.com/Exploitcorporations/Galileo/Europa/E6ESBRTPLN02.jpg
Posted by: Exploitcorporations Jan 11 2006, 08:10 AM
E6ESDRKLIN01:
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Posted by: Exploitcorporations Jan 11 2006, 08:13 AM
E6ESBRTPLN02 Context:
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Posted by: Exploitcorporations Jan 11 2006, 08:18 AM
http://conamera.byethost6.com/Exploitcorporations/Galileo/Europa/21_12ESCHAOS01w.jpg
http://conamera.byethost6.com/Exploitcorporations/Galileo/Europa/12ESCHAOS01ctx.jpg
Posted by: Exploitcorporations Jan 11 2006, 08:25 AM
Removed
Posted by: ugordan Jan 11 2006, 08:44 AM
Great mosaics! They would have been even more awesome if you included a pixel scale on each of them, just to put things into perspective.
Europa is really an intriguing world, amazing how smooth it looks from a distance, yet has one of the more rugged surfaces close up.
It's actually remarkable how Galileo's old CCD was very capable of producing crisp images, a fact often forgotten thanks to heavy image compression out of neccessity...
Imagine the coverage of these worlds if the HGA was operational! I only wish Cassini was able to capture rapid footprints like this and get long imaging swaths as well.
Posted by: hubdel11 Jan 11 2006, 09:08 AM
yes, talking about cassini and galileo, i often ask myself why the resolution of the pics are not so fine at saturn : 30 meters for cassioni, versus 7 for galileo ?
Posted by: hubdel11 Jan 11 2006, 09:09 AM
oops, cassini
Posted by: ugordan Jan 11 2006, 09:24 AM
It's not Cassini's resolution that's a problem. AFAIK, Cassini's narrow angle camera has a greater resolution than Galileo had. Galileo did more very close flybys, IIRC there was one that approached to within 80 kilometers to Ganymede (?), and Cassini wasn't doing such extremely close approaches. The closest approach so far was to Enceladus at 175 km and that record is probably gonna hold till the end of the primary mission, it was never really planned in the original tour to be that close.
I was actually talking about pretty long time intervals Cassini's cameras need to readout a picture so the spacecraft moves too far in the meantime to allow the mosaic footprints to overlap so nicely. Another contributing factor is the image packet rate to the solid state recorders, often several instruments need bandwidth and that lowers the speed at which images can be sent to the recorder, but that's a slightly less problematic issue.
Posted by: Exploitcorporations Jan 11 2006, 09:51 AM
Europa is really an intriguing world, amazing how smooth it looks from a distance, yet has one of the more rugged surfaces close up.
It's actually remarkable how Galileo's old CCD was very capable of producing crisp images, a fact often forgotten thanks to heavy image compression out of neccessity...
Imagine the coverage of these worlds if the HGA was operational! I only wish Cassini was able to capture rapid footprints like this and get long imaging swaths as well.
Sorry about the scales:
E6ESBRTPLN02: 21m/pxl
E6ESDRKLIN01: 180m/pxl
17ESSTRSLP01: 39m/pxl
I had to smack my forehead about that. As for long swaths, I'll post the huge transect strips from E12 in a couple of days. Galileo actually did return some great stuff in terms of context...occasionally.
Posted by: Bob Shaw Jan 11 2006, 12:27 PM
Among the Exploitcorporations Europa mosaics are some excellent craters - including those in his Astypalaea Linea post. It's interesting to note a 'new' surface with more craters than a nearby 'old' surface, though presumably courtesy of a Shoemaker-Levy 9 class of impact...
...good area for a lander, perhaps?
Bob Shaw
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Posted by: tedstryk Jan 11 2006, 01:06 PM
Excellent mosaics!
Posted by: Exploitcorporations Jan 12 2006, 05:34 AM
http://conamera.byethost6.com/Exploitcorporations/Galileo/Europa/12ESFRTPLN01.jpg
Posted by: Exploitcorporations Jan 12 2006, 05:38 AM
http://conamera.byethost6.com/Exploitcorporations/Galileo/Europa/E4ESGLOMAP01_12ctxt.jpg
Posted by: Decepticon Jan 12 2006, 02:00 PM
More More!! Love it!
Posted by: Sunspot Jan 12 2006, 03:01 PM
Amazing Mosaics !!
I miss Galileo.. 
Posted by: Exploitcorporations Jan 13 2006, 01:11 AM
http://conamera.byethost6.com/Exploitcorporations/Galileo/Europa/12ESWEDGES01.jpg
Posted by: Exploitcorporations Jan 13 2006, 01:13 AM
http://conamera.byethost6.com/Exploitcorporations/Galileo/Europa/12ESWEDGES02.jpg
Posted by: Exploitcorporations Jan 13 2006, 01:14 AM
http://conamera.byethost6.com/Exploitcorporations/Galileo/Europa/12ESWEDGES03.jpg
Posted by: jamescanvin Jan 13 2006, 01:26 AM
I'd started to forget what an astonishing place Europa is.
Thanks for reminding me.
Great work.
James
Posted by: Exploitcorporations Jan 21 2006, 01:25 PM
This observation seems to be within the boundaries of 11ESREGMAP01, judging from the footprint graphic (NASA). I'll attempt a composite later, but 6m/pxl within about 200m/pxl will appear submicroscopic...http://conamera.byethost6.com/Exploitcorporations/Galileo/Europa/12ESMOTTLE01-02.jpg
Posted by: JTN Jan 21 2006, 03:44 PM
Ooh, lovely. I only recall having seen one frame of that before (touted as the "highest-resolution view of Europa" IIRC), and it was one of my favourites.
Has anyone ever considered fomenting a "campaign for more oblique imaging"?
Posted by: ljk4-1 Jan 21 2006, 04:33 PM
Has anyone ever determined the composition of the dark material in the cracks and lines of Europa's surface?
How "pure" is Europan ice?
Posted by: Bob Shaw Jan 21 2006, 04:36 PM
Another great image - and, do my eyes lie to me, or are we seeing a cross-section of ridges here:
Bob Shaw
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Posted by: Decepticon Jan 21 2006, 07:08 PM
I can't believe there still so many images I have not seen! 
Posted by: Jeff7 Jan 21 2006, 08:28 PM
Absolutely incredible how young the surface is. I really hope to see some kind of mission(s) to Europa in my lifetime.
I wonder too if the dark material in the cracks might be some sort of organic material.
Algae? 
Posted by: vexgizmo Jan 21 2006, 10:07 PM
Awesome work!
Yes, the MOTTLE mosaic can be located within the REGMAP mosaic, as below. (credit Univ. AZ)
The dark stuff composition is presumably the "non-water-ice" component observed by NIMS--hydrated sulfate salts and/or sulfuric acid hydrate--as radiation-processed into chains of sulfur. But there certainly could be organics in there as well--it will take a better spectrometer to find out.
Ridge cross-sections? Probably so, but complicated by talus slopes extending out toward us.
-Bob P.
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Posted by: Exploitcorporations Jan 22 2006, 01:22 PM
http://conamera.byethost6.com/Exploitcorporations/Galileo/Europa/E6ESBRTPLN01.jpg
Posted by: Exploitcorporations Jan 22 2006, 01:27 PM
Answer to Vexgizmo's sulpheric acid Pepsi challenge over in Ted's thread:http://conamera.byethost6.com/Exploitcorporations/Galileo/Europa/Conamara-Chaos.jpg
Edit: Myran, that's your color sample. I meant to use a crop from Vexgizmo's post, but I mistook yours for the NASA version. Excellent work!
Posted by: Decepticon Jan 22 2006, 07:23 PM
So where can I find this Data on the net?
Posted by: Myran Jan 22 2006, 10:41 PM
Thank you! Yet im certain you try to flatter me in claiming you mistook my image.
As a matter of fact it ended up more yellowish than what it should have been, a slight adjustment would correct that.
Posted by: vexgizmo Jan 23 2006, 08:59 PM
You guys are damn good! It ws the E6ESDRKLIN01 mosaic that I was wondering about colorizing.... I assume you have access to the raw frames via PDS if needed?
-Bob P.
Posted by: Exploitcorporations Jan 25 2006, 05:08 AM
Here's a short series of colorized mosaics (color data by Myran).
http://conamera.byethost6.com/Exploitcorporations/Galileo/Europa/E6ESBRTPLN02c1w.jpg
Posted by: Exploitcorporations Jan 25 2006, 05:11 AM
http://conamera.byethost6.com/Exploitcorporations/Galileo/Europa/0603c.jpg
Posted by: Exploitcorporations Jan 25 2006, 05:14 AM
http://conamera.byethost6.com/Exploitcorporations/Galileo/Europa/E6ESDRKLIN01c1w.jpg
Posted by: Exploitcorporations Jan 25 2006, 05:22 AM
For Decepticon:
http://pdsimg.jpl.nasa.gov/cgi-bin/Nav/GLL_search.pl
Posted by: Decepticon Jan 25 2006, 01:18 PM
Thanks!
Posted by: Exploitcorporations Jan 25 2006, 01:25 PM
http://conamera.byethost6.com/Exploitcorporations/Galileo/Europa/12ESCHAOS01COLOR.jpg
Posted by: DrShank Jan 11 2008, 03:47 AM
this may be letting the cat out of the bag, but I have calibrated, properly registered and mosaiced
all high resolution images of the 4 moons taken by Galileo. be patient! they are being labelled, formatted
and prepped for publication shortly (in 6 months or so). Its a big job!
cheers
paul
Posted by: DrShank Jan 11 2008, 03:54 AM
here is an example!
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Posted by: Greg Hullender Jan 11 2008, 04:13 AM
Publication is great, but what *I* really want is
1) A really nice coffee-table book filled with beautiful color pics (one each for Mars, Jupiter, and Saturn)
2) Some stunning 1600 x 1200 images suitable for use as a computer desktop background
--Greg
Posted by: DrShank Jan 11 2008, 02:25 PM
coffee table book you say??? at least you will have your Jupiter (moons) wish fulfilled soon...
i cant give a date yet till i chat with publisher next week, but later this year looks very good.
Posted by: Phil Stooke Jan 11 2008, 02:43 PM
That looks very promising! Thanks for doing this.
Phil
Posted by: hendric Jan 14 2008, 05:44 AM
DrShank,
Will there be commentary, or will it be just a picture book? I would be interested to hear how those two craters, practically the same size, ended with different interior morphologies.
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