Glenelg - Page 10

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Posts: 3062

Reply: 181

PostPosted: October 18, 2012 6:26 AM 

Of course, the most likely explanation is an imaging artifact. another test


Dana Johnson

Posts: 1195

Reply: 182

PostPosted: October 18, 2012 6:34 AM 

It looks locally like a hydrothermal or active drainage channel near the rover, with the bright tubular or cylindrical object emerging from the surface at the channel source.
Alteration products of light and dark would happen in that historical scene if true.
Whether we find alteration of the pyrite 'dollar' shapes in the local rocks, and in the soil, what are the chances of finding so suggestive a source of drainage at the first rover pass close to a depression looking like a drainage basin?
Why are the patterned fracture lines in the satellite views so differing from our current look into the basin?
Are we a distance from the visible bottom beyond Glenelg?

Dana Johnson

Posts: 1195

Reply: 183

PostPosted: October 18, 2012 6:47 AM 

I am getting the same effects on this blog that LWS is complaining about on the 'raw images' pages of the MSL rover site.
As I post, at times the entries are visible, other times, as a few minutes past, they are not visible nor recorded, and at other times the updating of refreshed pages literally is backing up in timing, giving a entry and page count that regresses into the past, with few entries and page listed than prior viewed updated pages which were also running backward in time and numbers.
This is serious enough to call a 'malware' problem, not cookie handling.
This entry should be visible as the first on page ten, with a prior post by myself.
Good that the rover is not affected by the problem of time displacement' effects.
Now it is more than just a denial of service attack type.


Posts: 303

Reply: 184

PostPosted: October 18, 2012 8:30 AM 

Here's hoping for the best on this post...

I think what I find interesting is the clumpiness of the sand. Here is an Earthly image for comparison, from someone who explains 'why my sandblaster clogs up'.





Posts: 303

Reply: 185

PostPosted: October 18, 2012 8:34 AM 

Test post. I'm wondering if there is any perchlorate in the soil, because I think that would explain the mudlike, clumpiness, consistency of the Martian sand.




Posts: xxx

Reply: 186

PostPosted: October 18, 2012 9:49 AM 

IMHO the black spot is laser burn from Chemcam...hence, they know it's plastic. Possibly termination insulation from one of the pyros that severed the umbilicals


Posts: 3062

Reply: 187

PostPosted: October 18, 2012 10:55 AM 

Richard Carey / Hort;

This glenelg thread is creating huge problems for me re. seeing posts of less than about 12 hours of posting.

I've tried Barsoomer's prescription of refreshing twice. It doesn't work for me.

I've been therefore forced to post short messages in order to see if there have been recent posts on the topic. Thereby appearing, as Mann says, to look as if I'm talking to myself and therefore going crazy.

I don't know if anyone else is having these problems. Indeed, it doesn't seem so since I am still getting several hits for my images on my smugmug page and if others were having the problem they couldn't see the images or download them.

Grateful for some feedback and if others indeed have a similar problem, grateful if it could be fixed.



Posts: 344

Reply: 188

PostPosted: October 18, 2012 10:57 AM 

They may have zapped it with the chemcam laser. The black spot may be the result.


Posts: 3062

Reply: 189

PostPosted: October 18, 2012 10:59 AM 

Psychgen; sounds very plausible. But why does the black spot appear and then disappear and then appear again?



Posts: 161

Reply: 190

PostPosted: October 18, 2012 11:28 AM 

Close up of mizars "its a rock"

Soil is clumped around something, that extends a bit into soil.

This caught my eye in the large image, so i made a 3d, and heres the crop.

Translucent, with a spore sack in the center.


Posts: 3062

Reply: 191

PostPosted: October 18, 2012 11:37 AM 

Test to see Mann's post


Posts: 3062

Reply: 192

PostPosted: October 18, 2012 12:00 PM 

Barsoomer / Psychgen

Yes! The laser zapping would explain the black spots and perhaps also the spots appearing and disappearing if the plastic heals itself after the zapping. Looking forward to the Curi Team expanding on the credible explanation of the object given by Psychgen.

Nice 3D images. I also get the further impression that some of the surrounding dark surfaced rocks have very pale interiors when broken (that object looks as if it was broken) suggesting that they might actually not be rocks at all.



Posts: 3465

Reply: 193

PostPosted: October 18, 2012 12:34 PM 

Er, the "black spot" is a defect in the MAHLI sensor. It is is the exact same spot and exact same focus in all the MAHLI images.

You should be able to spot it in the above "wiggle" 3D animation.

The wiggle animation above is before I rotated the images for maximum stereo separation. Can you see how I chose the angle of rotation?


Posts: 3465

Reply: 194

PostPosted: October 18, 2012 1:39 PM 

sol 0066 MAHLI 3D of very peculiar subsoil patterns in the Glenelg trench:

with location link.

Er, what?

Sure hope the patterns just below the armored surface are zapped by Chemcam.

As pointed out earlier, some interesting chains of white soil particles also.


Posts: 3062

Reply: 195

PostPosted: October 18, 2012 2:14 PM 

Hort; That explanation sounds OK.

The defect in the MAHLI sensor happened to be on the spot on a bulge on the plastic for some of the images, not all, hence the impression of the spot appearing and disappearing.

Why then do all the images appear to have been taken with essentially the same focus and subject and essentially no rotation?



Posts: 250

Reply: 196

PostPosted: October 18, 2012 2:35 PM 

Winston, re187: I have the same problems with this blog currently. Confused

Horton, really good images - I have to admin that I like the animated gif type 3D presentations the most because of its broad application (not everybody got 3D glasses at hand everytime) and "ease of use".

Regarding the ChemCam: from the last telco I got the impression that the operators are not really confident about the results so far those keeping quite a low profile with the data as of yet. I hope that changes as they progress and get more experience in using this new type of instrument.


Posts: 3062

Reply: 197

PostPosted: October 18, 2012 6:26 PM 

Hort; The angle of rotation was the angle between the 2 spots seen in the wiggle GIF

My mistake was that I had checked the images displayed on the Curi MAHLI site last night and all seemed to have been at the same angle, but now it appears that they weren't. So it seems that the Curi handlers rotated the camera by that amount for the right side images and therefore got the spot on the plastic for the left eye ones and missed it for the right eyed ones. The spot is therefore in all images but misses the plastic in the ones that were rotated.

Seems like you're right as usual



Posts: 655

Reply: 198

PostPosted: October 18, 2012 8:08 PM 

Excellent stuff guys, thanks so much for putting all of this out so the rest of us can share the experience!


Posts: 3062

Reply: 199

PostPosted: October 18, 2012 11:59 PM 

Barsoomer / MPJ / Mizar

Listened to the MSL telcon today. Highlights to me were:

Small piece of plastic was about 2 cm long. They are not yet sure of exact source but think it is debris from the landing process. No one asked if they have confirmed chemically that it is plastic. They have found 6 to 7 similar pieces of debris but do not have close up images of any of them.

The grain size of the bright white material is between 0.5 to 1 mm. It might be different minerologically to the rocks etc studied so far which are in the main basaltic and silicates. The typical grain sizes on the surface are a bit smaller smaller than the typical meridiani berries, c. 2 mm.

3 Atmospheric measurements have been made so far with SAMs but they are not yet in a position to disclose results - checking and double checking to get it absolutely right. Perhaps may be in a position to make an announcement (that, reading between the lines, might be about methane) in a few weeks time.

There have been a few unspecified pleasant surprises re. Gale Crater so far.

Should start towards Mt Sharp by the end of the year.



Posts: xxx

Reply: 200

PostPosted: October 19, 2012 2:50 PM 

look at the black stuff on the rock a bit up from the center of the image...


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