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Dawn's last mission extensions at Ceres, From XMO3 to EOM
HSchirmer
post Jul 4 2018, 04:48 PM
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QUOTE (Daniele_bianchino_Italy @ Jul 4 2018, 08:00 AM) *
It seems like exposure of sulfur after volcanic eruption, but this should be salt or sodium carbonate [wildespace].



Looks like the travertine springs in Pamukkale, Turkey.



Bigger
https://upload.wikimedia.org/wikipedia/comm..._panorama_2.jpg
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Gladstoner
post Jul 4 2018, 07:02 PM
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My eyes are seeing something like this:

Attached Image


Attached Image


1. Bedrock (or 'bedrock')

2. Talus made up of fragmented bedrock

3. White material deposit

4. Scattered debris atop white material

5. Eroding white material
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Paolo
post Jul 4 2018, 07:08 PM
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the Max Planck Institute site also has a striking image of the rim of Occator crater:
http://www.mps.mpg.de/Dawn-Unique-Views-of-Occator-Crater
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Jaro_in_Montreal
post Jul 16 2018, 10:11 PM
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Finally a closeup: Cerealia Facula in Occator Crater, Ceres.


Attached Image
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Daniele_bianchin...
post Jul 17 2018, 11:20 AM
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I have Searched The areas seen so far at high resolution in Occator crater:
Attached thumbnail(s)
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Gladstoner
post Jul 18 2018, 03:57 PM
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Mosaic of Cerealia Facula in Occator Crater:

https://photojournal.jpl.nasa.gov/catalog/PIA21924

Mosaic of the Vinalia Faculae in Occator Crater:

https://photojournal.jpl.nasa.gov/catalog/PIA21925

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Explorer1
post Jul 18 2018, 07:54 PM
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New Dawn journal, detailing how the images were obtained, and the last ion engine firing: http://www.planetary.org/blogs/guest-blogs...-on-a-high.html
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Therion
post Jul 18 2018, 08:07 PM
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Oh my! Those mosaics are absolutely stunning!

I see lot of pockmarks (pits/craters) on that white surface, although gray material within linear troughs/chasms and around that flat elevated mesa at SW is rather smooth.

Those bright fluvial features streaming down from flat-top mesa seems to be mixing with darker stuff which then covers underlaying bright deposits. I wonder, how amazing look would it be, standing down there next to central dome and looking SW at those streams!

Streams and landslides within troughs seems to be the youngest geological features here. Or those pockmarks all around the bright stuff are not impacts, but rather some sublimation-pits or even cryovolcanic calderas??

Either way, it's crazy landscape..
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mcmcmc
post Jul 19 2018, 07:10 AM
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Each pixel should cover around 3-3.5 meters in these images.
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Daniele_bianchin...
post Jul 19 2018, 08:42 AM
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QUOTE (Therion @ Jun 15 2018, 07:36 AM) *
Sharpened and enlarged views of Occator crater's eastern rim, boulders and landslides from altitude 44-48 km:

[attachment=43044:PIA22524crop.jpg]
from PIA22524

[attachment=43045:PIA22525crop.jpg]
from PIA22525

[attachment=43046:PIA22526crop.jpg]
from PIA22526


QUOTE (Jaro_in_Montreal @ Jul 16 2018, 11:11 PM) *
Finally a closeup: Cerealia Facula in Occator Crater, Ceres.


Attached Image



Your images are enlarged more than those inserted on: https://dawn.jpl.nasa.gov/multimedia/images/ceres.html
WHy? I would like to see these bigger.
Like these: https://www.jpl.nasa.gov/images/dawn/20180716/PIA21924.jpg

we would not have great images of Hauna mons if I understood correctly but only of crater 0ccator . .

Why did not we have temperature maps for Ceres?
..
.
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Gladstoner
post Jul 19 2018, 06:13 PM
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It is proving quite difficult to visualize topography in the Cerealia Facula mosaic. For instance, the fractures keep appearing as ridges to my eyes.

Is it yet possible to produce 3D images, or lay portions or all of the mosaic on an elevation model?
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Floyd
post Jul 19 2018, 06:41 PM
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Save the image on you computer, open in an editor and rotate 180 degrees. Light is coming from wrong angle for your brain to work--mine too--till flipped


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Gladstoner
post Jul 19 2018, 09:20 PM
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QUOTE (Floyd @ Jul 19 2018, 12:41 PM) *
Save the image on you computer, open in an editor and rotate 180 degrees. Light is coming from wrong angle for your brain to work--mine too--till flipped


I already did that, and now it looks like the light is coming from below. smile.gif

The extreme light-dark pattern really fools the eyes.
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wildespace
post Today, 09:29 AM
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QUOTE (Gladstoner @ Jul 19 2018, 07:13 PM) *
Is it yet possible to produce 3D images, or lay portions or all of the mosaic on an elevation model?

Someone made this 3D model: https://sketchfab.com/models/6a163a690a9b44...537eb745e24f5fa
Would be very nice to see the new imagery over this model!


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