Trek to Solander Point - Page 2

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hortonheardawho


Posts: 3465

Reply: 21



PostPosted: May 24, 2013 4:15 PM 

Sol 3317 ( May 24, 2013 ) Navcam 3D in next drive direction in Botany Bay:

Notice that the "sundial stain" has reappeared! ( How many times is this now? )

Here is my best guess for the map location based on angles to three points on Sutherland Point:

The measured drive based on this map position is about 75 meters - not the 100 meters based on the change in the drive index. Perhaps the wheel slippage was 25%?

What does this imply about Botany Bay?

Finally, here is an interesting view of Knobby's Head and surrounding features.

hortonheardawho


Posts: 3465

Reply: 22



PostPosted: May 24, 2013 10:54 PM 

Sol 3317 ( May 24, 2013 ) panorama ( HD format ) in next drive direction in Botany Bay:

Oppy seems to be headed towards a large block on the side of Sutherland Point about 190 meters distant.

hortonheardawho


Posts: 3465

Reply: 23



PostPosted: May 25, 2013 11:22 AM 

Sol 3317 ( May 24, 2013 ) 3x1 Navcam panorama in the next drive direction in Botany Bay:

No drive today.

Barsoomer


Posts: 344

Reply: 24



PostPosted: May 28, 2013 11:05 PM 

What produced the gap between the upper and lower laminations? Looks like a stairs of layers!

Perhaps the gaps were formerly filled by ice that sublimed away when the rock became exposed?

hortonheardawho


Posts: 3465

Reply: 25



PostPosted: May 29, 2013 1:59 PM 

Sol 3314 ( May 21, 2013 ) enhanced difference false color panorama of Duyfken crater:

Where did the bright "red" rocks come from? And the "green" stuff?

Today ( sol 3322 ) is another non-driving day. I wonder why no APXS study was done on Botany Bay rocks while sitting still for five sols?

hortonheardawho


Posts: 3465

Reply: 26



PostPosted: May 29, 2013 6:42 PM 

Opportunity sol 3316 panorama ( HD format ) of Bulldust rock outcrop in Botany Bay:

with location and 3D links.

This outcrop is part of a full filter 5x1 panorama.

It looks like there is a rough patterned surface coating on smooth layered rocks.

I look forward to a enhanced difference false color infrared / visible 3D of this area.

Bulldust? Maybe that's why Oppy was a'slippin' last drive?

Tomorrow ( sol 3323 ) is a driving day and drive planning images have down-link priority - so it may be a long while before the panorama is complete.

hortonheardawho


Posts: 3465

Reply: 27



PostPosted: May 30, 2013 2:12 PM 

Sol 3323 ( May 30, 2013 ) panorama in the next drive direction towards Sutherland Point:

with links to the left and right pancam panoramas in the next drive direction.

The drive index changed from BZW8 to BZ6Q for an estimated drive of 70-80 meters.

The edge of Sutherland is now around 80-100 meters distant - so the next drive should be near the "shoreline" - probably towards the southern end of Sutherland.

John Henry Dough


Posts: xxx

Reply: 28



PostPosted: May 30, 2013 3:25 PM 

LWS i hope you are keeping records for another e-book,,so congrats! and keep up the good work!
j

hortonheardawho


Posts: 3465

Reply: 29



PostPosted: May 31, 2013 1:31 PM 

Sol 3324 ( May 31, 2013 ) panorama ( HD format ) in the next drive direction in Botany Bay:

See Flickr comments for comments.

hortonheardawho


Posts: 3465

Reply: 30



PostPosted: June 1, 2013 3:46 PM 

Sol 3325 ( Jun 1, 2013 ) panorama ( Right eye ) in the next drive direction on Sutherland Point:

with location link.

Welcome to Sutherland Point. Tickets and passports Please. Next stop - Knobby's Head.

Kye Goodwin


Posts: 1166

Reply: 31



PostPosted: June 1, 2013 6:38 PM 

Oppy's "come ashore" again and once again the transition from Meridiani "sandstone" to the "older" material of Nobby Head is everywhere gradual as far as we can see. Here Oppy is still clearly on the usual layered Meridiani bedrock:

Here too layering is visible in the foreground but we get a closer look at the darker dip and brighter rise that runs along the perimeter and looks like it might correspond to the contact in orbital images:

Here Oppy is inside the possible contact but the bedrock looks only subtly different from outside:

And here Oppy is further inland where still plausibly continuous fine-grained bedrock is visible in the foreground:

The contact could be further inland under that coarse debris in the last image. If Oppy has already crossed the line then it is very hard to see. I don't see any transitions in the bedrock but spread out continuous ones.


Kye Goodwin


Posts: 1166

Reply: 32



PostPosted: June 2, 2013 12:45 PM 

Further to my reply 31, if migrating aeolian ripples at some time in the past had gently covered up impact breccia sitting on Endeavour's rim, then in the simplest case, today there would be no gradual transition in the bedrock as we approach these capes. Yes, one can think of many reasons why the deposited sand MIGHT go through changes after deposition (diagenesis) affected by the proximity of underlying older material of a different composition, BUT the best evidence that the Burns Formation was deposited originally as windblown sand would have been be to find no change at all in the layered bedrock right up to the contact. The systematic gradual change in the bedrock imaged as Oppy crosses the cape margins, now familiar from several crossings, requires an explanation. It has to be a more complicated explanation than simply that older rim material has been buried in windblown sand, because that would produce a simple picture, not the puzzling tangle that we've actually found. Its time to revisit pre-arrival assumptions about these capes that have not been borne out by the evidence.

hortonheardawho


Posts: 3465

Reply: 33



PostPosted: June 2, 2013 4:13 PM 

Sol 3325 ( Jun 1, 2013 ) natural color of Solander Point:

and the enhanced difference false color version:

The mineralogy of Solander Point looks quite different than that of Botany Bay.

I wonder exactly where Oppy will be going?

hortonheardawho


Posts: 3465

Reply: 34



PostPosted: June 4, 2013 11:37 AM 

Sol 3325 ( Jun 1, 2013 ) synthetic natural color of Sutherland Point:

The interior of Sutherland Point looks, er, boring. Don't think we will stay long.

Today's drive ( sol 3328 ) should be happening as I type.

Here is the false color "shore line" of Sutherland Point:

and here is the enhanced difference false color of Botany Bay near the shore:

Quite different things happened to these three areas that are within 100 meters of one another.

hortonheardawho


Posts: 3465

Reply: 35



PostPosted: June 4, 2013 7:12 PM 

Sol 3328 (Jun 4, 2013 ) 3D in next drive direction towards Knobbys Head:

The drive index changed from C0NS to C01N for a guestimated drive of 105-115 meters. The two 2 meter craters ahead are 35 and 45 meters distant and 18.4 degrees apart. Knobby's head is 80 - 120 meters distant.

Sure would be nice for the official MER site to post a current map.

John Henry Dough


Posts: xxx

Reply: 36



PostPosted: June 5, 2013 4:23 PM 

Quite different things happened to these three areas that are within 100 meters of one another>>>

Indeed!
And worthy of a closer look I would think.

Highly disappointed with the false color images because we will not be let in on the code they are written under.
I strongly support the offices that deem security,,,but this is,,flat-out miss-information,,,,again what do the false colors represent?
jd

hortonheardawho


Posts: 3465

Reply: 37



PostPosted: June 6, 2013 5:12 PM 

Sol 3330 ( Jun 6, 2013 ) panorama ( HD format ) in the next drive direction towards Knobby's Head:

The parallax measured distance to the top of the head is about 56 meters and about 41 meters to the "edge" of the head.

The drive index changed from C01N to C0## ( overflow ) so the drive was at least 50 meters. The distance to the top of the head changed from 103 to 41 - approximately 60-70 meters driven towards the head.

It looks like the plan is to go around the head on the western side. ( Better afternoon lighting for features photographed. )

Barsoomer


Posts: 344

Reply: 38



PostPosted: June 7, 2013 11:24 AM 

http://www.jpl.nasa.gov/news/news.php?release=2013-192

Opportunity telecon coming up in about a half-hour from now at 9am Pacific time.

Barsoomer


Posts: 344

Reply: 39



PostPosted: June 7, 2013 11:54 AM 

[link]

There is also a new TPS update.

hortonheardawho


Posts: 3465

Reply: 40



PostPosted: June 7, 2013 3:46 PM 

Sol 3330 ( Jun 6, 2013 ) guestimated map position on Knobby's Head:

Sol 3330 ( Jun 6, 2013 ) 3x1 L0 Navcam panorama in the next drive direction:

It's rather obvious that the rover will pass on the western side.

Barsoomer, thanks for the link to the MER teleconference.

It's interesting that the team regards Knobby's Head as a fallback Winter Haven if Oppy can't get to Solander Point in time. I wonder under what circumstances that would be considered?

The exciting science news announced in the teleconference was that Oppy was able to establish using the APXS that Esperance 6 was a montmorillonite clay - formed in a lot of neutral water a long time ago.

One question was about the implied habitability of Mars and Steve was very reluctant to draw any such conclusion. That's Curiosity's mission.

No drive today.

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