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(NASA)   The first color image from Curiosity is in and if you ask subby it looks like it took a wrong turn at Albuquerque and ended up on Titan   (mars.jpl.nasa.gov) divider line 62
    More: Cool, color image, Titans, Albuquerque  
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7429 clicks; posted to Geek » on 07 Aug 2012 at 12:50 PM (2 years ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



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2012-08-08 04:43:21 AM  

OnlyM3: Sorry subby, but today's best "Curiosity" image was not this fuzzy dust cover shot.


Happen to have a scale on that? I am curiosity to see if it will recon its own chute, etc.
 
2012-08-08 08:27:50 AM  

KellyX: dragonchild: Robert Farker: Dude, seriously just do some research if you want to know more. No reason to come up with poor theories when you can just read about it.

You have it backwards. I'm an engineer and I find the explanations lacking. I think "to protect the cameras during landing" is plausible, but against dust? That's just what happened to be on the hazcam lens covers before they were jettisoned. They used the sky crane maneuver specifically to minimize the effects of the rockets.

Kittypie070: WAAHH INCOMPETENT LENS CAPS!!

My comment about the design being "incompetent" was misunderstood. Which is nothing new for Fark, but FWIW, that was intended to mean that the lack of some additional dust protection was the least likely possibility (which begs the question of what else those covers were for). That the disposable covers on the hazcams are the only countermeasure would lead to the preposterous conclusion that the most successful team of Mars missions in the world didn't know what they were doing -- ergo, there's something else. Now, with the disrespect to NASA revealed to be a complete fabrication due to a lack of reading comprehension, the question is whether people in this thread will continue to cling to their butthurt.

My question wasn't that it can be put on and off at will, just what would they do then if dust got on the lens at all... Does the dust cap also wipe off dust as it goes back on?


They discovered that magnetic fields can repel the dust that normally sticks to surfaces like solar panels. They've put little magnets onto the 3d coalation targets for the cameras and iirc into the rims of the more important cameras.

ALL cameras on the rover are color and fairly high resolution. Keep in mind that they use R-2G-B scan ratio on these CCDs.
There are sixteen cameras aimed around beneath the rover and the rest are on either the boom and mast or located with scientific equipment.
They've included LED lighting for ALL cameras. The rover can work 24 hours a day - with the nuclear thermopile quite likely for 20 years.

The main thing to keep in mind about Mars is the atmosphere is around 1/40th of Earth's density, so most of the dust particles rarely get very high off the ground. The rocket thruster exhaust from the skyhook was more than 4x Earth's atmospheric density and REALLY kicked up dust.
If you look over where the skyhook landed in the picture of the landing site you'll see a huge plume of dust disturbed.
The lens caps were meant to protect the cameras from thruster exhaust which is highly corrosive AND the dust being blown around at exceptionally high velocities. The atmospheric density is close enough to vacuum for the engineering involved to be approximately the same.

To my knowledge they'll not be going near the parachute but they may be going over to look at the skyhook and heat shield.
They primarily want to stay on mission, it would be more advantageous to have it die after doing one sample location than to die while effectively looking at its own ass.

Mentioning that it is important to note that this rover CAN look at its own ass, in color, at night. NASA won't have to rely on the navigation cameras alone to diagnose problems with wheels and the 16 cameras aimed down around will give the rover immediate feedback if it begins to bury a wheel or a rock tumbles up out of the soil, it can stop and call home instead of burning out motors or getting pebbles jammed into the inner chase.

Almost the entire world has overlooked precisely how important this mission is to science, engineering and exploration.
We've done a powered assault landing on another planet with a nuclear fueled robotic platform.

Has anybody mentioned yet that the "work" arm is strong enough to tip the previous rover directly towards the sun?
God only knows what science we'll get done in Curi's lifespan.
 
2012-08-08 10:38:01 AM  

OnlyM3: Sorry subby, but today's best "Curiosity" image was not this fuzzy dust cover shot.


it was..........


[www.nasa.gov image 850x637]


Nice! I like this one too. I looks like Curiosity is about a kilometer and a half from some pretty cool terrain.
www.nasa.gov

It looks like the terrain features that are in the lower right hand corner are about one third the way up the line to the word Curiosity in your picture but it's hard to tell without the scale. Thoughts anyone?
 
2012-08-08 10:47:20 AM  
A shot of the landing target within Gale crater.
www.nasa.gov

I guess the plan is to drive along the terrain that is to the lower right than head towards the peak? This is pretty farking cool, hard to believe anyone would complain about the costs.
 
2012-08-08 10:55:58 AM  

SevenizGud

>>>> OnlyM3: Sorry subby, but today's best "Curiosity" image was not this fuzzy
>>>> dust cover shot.

Happen to have a scale on that? I am curiosity to see if it will recon its own chute, etc.

source
...The Curiosity rover is approximately 4,900 feet (1,500 meters) away from the heat shield; about 2,020 feet (615 meters) away from the parachute and back shell; and approximately 2,100 feet (650 meters) away from the discoloration consistent with the impact of the sky crane...


...The image scale is 39 centimeters (15.3 inches) per pixel. ...


Hope that helps.
 
2012-08-08 01:50:27 PM  
heading for the hills (looks kind like LA - 200 years ago):
news.bbcimg.co.uk
 
2012-08-08 02:49:48 PM  
Remember that blurry photo of the heat shield dropping away from Curiosity a few days ago?

Updated with hi-rez goodness:
www.nasa.gov
The rest of the frames will be updated with the improved version just as soon as they're produced on that sound stage.
 
2012-08-08 02:58:40 PM  

OnlyM3: Remember that blurry photo of the heat shield dropping away from Curiosity a few days ago?

Updated with hi-rez goodness:
[www.nasa.gov image 850x637]
The rest of the frames will be updated with the improved version just as soon as they're produced on that sound stage.


Very cool. I like the sun glinting off the left side. I wonder if it is convex (bulging out) or is it starting to tumble to the other side?

/or did someone open a door to the stage?
 
2012-08-08 05:31:56 PM  

prjindigo: Has anybody mentioned yet that the "work" arm is strong enough to tip the previous rover directly towards the sun?


Really? Is Curiosity close enough to Spirit to try and get it working again? That would be rather awesome.
 
2012-08-08 07:01:47 PM  
theorellior

Really? Is Curiosity close enough to Spirit to try and get it working again? That would be rather awesome.


This flash display shows a revolving mars "globe" with landing locations.
https://upload.wikimedia.org/wikipedia/commons/9/9d/Mars_Landing_Sit es .ogv
 
2012-08-08 11:55:55 PM  
theorellior 2012-08-08 05:31:56 PM


prjindigo: Has anybody mentioned yet that the "work" arm is strong enough to tip the previous rover directly towards the sun?

Really? Is Curiosity close enough to Spirit to try and get it working again?


I don't know.

I...think Spirit's batteries would be way too drained to recharge even if Curiosity could reach Spirit :(
 
2012-08-09 01:48:52 AM  

Kittypie070: theorellior 2012-08-08 05:31:56 PM


prjindigo: Has anybody mentioned yet that the "work" arm is strong enough to tip the previous rover directly towards the sun?

Really? Is Curiosity close enough to Spirit to try and get it working again?

I don't know.

I...think Spirit's batteries would be way too drained to recharge even if Curiosity could reach Spirit :(


Curiosity is way to valuable to spend it's time driving to Spirit. It would make more sense to launch more Spirit type robots then send Curiosity.
 
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