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View Full Version : Opportunity images artifical object!



The Bad Astronomer
2004-Dec-13, 06:35 PM
Really! Of course, it was manufactured here on Earth (http://marsrovers.jpl.nasa.gov/gallery/all/1/p/315/1P156152119ESF3900P2565R2M1.JPG). It's the heat shield.

ToSeek
2004-Dec-13, 06:43 PM
There were some folks on GLP wondering what it was. I tried to enlighten them.

frogesque
2004-Dec-13, 08:07 PM
Remembers thread about Spirit and a squashed bunny :lol:

lyford
2004-Dec-13, 10:18 PM
You had me for a second. I was expecting Hoagland's "Parts is parts" pics...

Of course, if that's the way it's gonna be, Spirit (http://marsrovers.jpl.nasa.gov/gallery/press/spirit/20040402a/x_pubeng_sol87_ennd-of-drive-A088R1_br.jpg) can play too. (http://marsrovers.jpl.nasa.gov/gallery/press/spirit/20040324a/x_pubeng_heatshield_zoombox-A080R1_br.jpg) :lol:

PS - I also miss Mr. Bunny.

PPS - ToSeek:

Results 1 - 10 of about 933,000 for GLP What's GLP? I am afraid I am acronym challenged....


edited for clarity, sort of

Doodler
2004-Dec-13, 10:25 PM
You had me for a second. I was expecting Hoagland's "Parts is parts" pics...

Of course, if that's the way it's gonna be, Spirit (http://marsrovers.jpl.nasa.gov/gallery/press/spirit/20040402a/x_pubeng_sol87_ennd-of-drive-A088R1_br.jpg) can play too. (http://marsrovers.jpl.nasa.gov/gallery/press/spirit/20040324a/x_pubeng_heatshield_zoombox-A080R1_br.jpg) :lol:

PS - I also miss Mr. Bunny.

PPS - ToSeek:

Results 1 - 10 of about 933,000 for GLP What's GLP? I am afraid I am acronym challenged....


edited for clarity, sort of

GLP = Godlike productions. A site that's about as close to the antithesis of these boards as one can get. Woowoos rule the roost while logic and critical thought, along with those that dare use them in the presence of Supreme Paranoia, are ridiculed and flamed.

lyford
2004-Dec-13, 10:33 PM
Woowoos rule the roost while logic and critical thought, along with those that dare use them in the presence of Supreme Paranoia, are ridiculed and flamed.
Hmmm. So how do they troubleshoot when the board has technical problems? Or do they keep a logic toolbox around just for emergencies? :wink:

Yikes - just got back from a visit over there! The front page is cheesy HTML and all, but that board is plain scary!!!!! I don't know what hurts more, my eyes or my brain...I need a drink...

Doodler
2004-Dec-13, 10:48 PM
I would offer a guess about how that board is maintained (it has suffered outages), but the only answers my mind could conjure up would violate just about every rule on Ad Hominem commentary the BA ever asked us to obey.

Besides, I'd hate to think a trained chimpanzee would sink so low as to do network admin with a ouija board.

frogesque
2004-Dec-13, 11:01 PM
Doodler wrote:


Besides, I'd hate to think a trained chimpanzee would sink so low as to do network admin with a ouija board.

ROTFLMAO :lol: :lol: :lol: (has visions of Discworld Librarian at Hex's keyboard instead B S Johnston's organ)

Nergal
2004-Dec-17, 07:33 PM
Besides, I'd to think a trained chimpanzee would sink so low as to do network admin with a ouija board.
Trained?

I've been forced to do some network admin from time to time, and I definately think you over-estimate what's going on at GLP...or their ouija board could be on the fritz I guess.

lyford
2004-Dec-17, 07:43 PM
Thar she blows!

http://marsrovers.jpl.nasa.gov/gallery/all/1/p/318/1P156412567ESF3940P2569L6M1-BR.JPG

Gettin' closer...

N C More
2004-Dec-17, 09:18 PM
Holy Cow! the BA really had me going there for a minute! Maybe some day we will come across something artificial that's not ours...I hope I live to see that day!

lyford
2004-Dec-20, 04:47 AM
Straight on (http://qt.exploratorium.edu/mars/opportunity/rear_hazcam/2004-12-19/1R156683123EFF39AJP1321R0M1.JPG) 'til morning!

Been driving backwards, by the looks of it... (http://qt.exploratorium.edu/mars/opportunity/forward_hazcam/2004-12-19/1F156683301EFF39ALP1201L0M1.JPG)

ToSeek
2004-Dec-20, 04:05 PM
Progress:

Before (Friday) (http://qt.exploratorium.edu/mars/opportunity/navcam/2004-12-16/1N156506060EFF3981P0705L0M1.JPG)

After (Sunday) (http://qt.exploratorium.edu/mars/opportunity/navcam/2004-12-19/1N156683714EFF4000P0705L0M1.JPG)

tlbs101
2004-Dec-20, 08:40 PM
Opportunity will probably end up overtaking Spirit for total distance, in a couple of months.

ToSeek
2004-Dec-20, 10:23 PM
Opportunity will probably end up overtaking Spirit for total distance, in a couple of months.

I was thinking the same thing.

ToSeek
2004-Dec-20, 10:30 PM
Good image of the area (http://www.msss.com/moc_gallery/r10_r15/images/R14/R1400021.html)

Endurance is the crater about in the middle of the image; Victoria and the etched terrain are toward the bottom. Good luck, Opportunity!

lyford
2004-Dec-20, 10:38 PM
Good image of the area (http://www.msss.com/moc_gallery/r10_r15/images/R14/R1400021.html)

Endurance is the crater about in the middle of the image; Victoria and the etched terrain are toward the bottom. Good luck, Opportunity!

Thanks, ToSeek.

01101001
2004-Dec-21, 04:12 AM
So we might recognize the heat shield when we see it:

http://photojournal.jpl.nasa.gov/browse/PIA04853.jpg (http://photojournal.jpl.nasa.gov/catalog/PIA04853)

Diameter: 2.6 m. Mass: 78 kg.

http://mars.jpl.nasa.gov/mer/mission/images/aeroshell1_500.jpg (http://mars.jpl.nasa.gov/mer/mission/spacecraft_edl_aeroshell.html)

More at NASA Planetary Photojournal: MER (http://photojournal.jpl.nasa.gov/gallery/snt?subselect=Mission%3AMars+Exploration+Rover+%28 MER%29%3A&start=20)

skwirlinator
2004-Dec-21, 12:40 PM
I just want to interject a site link for all to see, I find it very good for current news reading and it has rss feeds, e-mail and photo galleries.

http://www.rednova.com/

ToSeek
2004-Dec-21, 02:46 PM
Another good website with information, images, and discussions:

http://www.markcarey.com/mars/

(This is where I got the orbital image that shows where Opportunity is heading.)

skwirlinator
2004-Dec-21, 03:12 PM
Another good website with information, images, and discussions:

http://www.markcarey.com/mars/

(This is where I got the orbital image that shows where Opportunity is heading.)

Hey, Thanks for the link. I will check it out. I'm wary of blogs because of the opinion/fact imbalances.
Being a member of BABoards you can appreciate my concern for facts...
Thanx again!

01101001
2004-Dec-22, 10:37 AM
Getting closer (http://qt.exploratorium.edu/mars/opportunity/navcam/2004-12-22/1N156948428EFF4075P0705L0M1.JPG).

frogesque
2004-Dec-22, 10:54 AM
01101001 wrote:

So we might recognize the heat shield when we see it:

01101001 wrote:


Getting closer.

Um... I didn't recognise it. Looks as if there have been a few engineering mods since the original design 8)

Cugel
2004-Dec-22, 12:35 PM
It's doing its Beagle-II imitation...

Nicolas
2004-Dec-22, 12:45 PM
soon it will turn out that it IS Beagle II 8-[ :D

ToSeek
2004-Dec-22, 02:50 PM
Getting closer (http://qt.exploratorium.edu/mars/opportunity/navcam/2004-12-22/1N156948428EFF4075P0705L0M1.JPG).

Looks as if it bounced and broke in two (at least). If there's a nice crater there on the right, maybe Opportunity will get a good look at some subsurface soil without having to dodge the heat shield in the process.

ToSeek
2004-Dec-22, 02:53 PM
Pancam view (http://qt.exploratorium.edu/mars/opportunity/pancam/2004-12-22/1P156949002EFF4075P2357L7M1.JPG) (much more detail)

Definitely a crater off to the side (http://qt.exploratorium.edu/mars/opportunity/pancam/2004-12-22/1P156949363EFF4075P2357L7M1.JPG)

frogesque
2004-Dec-22, 03:48 PM
Pancam view (http://qt.exploratorium.edu/mars/opportunity/pancam/2004-12-22/1P156949002EFF4075P2357L7M1.JPG) (much more detail)

Definitely a crater off to the side (http://qt.exploratorium.edu/mars/opportunity/pancam/2004-12-22/1P156949363EFF4075P2357L7M1.JPG)

What's the ETA at the heat shield and what plans have NASA for investigations? Only thing I've seen is they might want to have a look at how the heat shield materials stood up to entry.

ToSeek
2004-Dec-22, 04:10 PM
Pancam view (http://qt.exploratorium.edu/mars/opportunity/pancam/2004-12-22/1P156949002EFF4075P2357L7M1.JPG) (much more detail)

Definitely a crater off to the side (http://qt.exploratorium.edu/mars/opportunity/pancam/2004-12-22/1P156949363EFF4075P2357L7M1.JPG)

What's the ETA at the heat shield and what plans have NASA for investigations? Only thing I've seen is they might want to have a look at how the heat shield materials stood up to entry.

Steve Squyres, scientific Principal Investigator for the Mars Exploration Rover effort from Cornell University, said the Opportunity assessment of the heat shield offers a double-bonus.

“For the scientists, it may be a chance to look at the deepest fresh hole in the ground that we'll ever see on Mars. For the engineers, it's an unprecedented chance to see how a heat shield performed during entry through the martian atmosphere. There's something for everybody,” Squyres told SPACE.com.

- http://www.space.com/missionlaunches/opportunity_heatshield_041221.html

No word on when they're liable to get there, though they seem pretty close.

Grizzly
2004-Dec-22, 08:48 PM
Latest pictures from the Navcam and Pancam don't seem to indicate much of a crater. I don't think that there's much of the ground that's been disturbed. Pity.

Still, it should be fun getting a look at the various bits and pieces.

----
No latin today, instead something from a seasonal fave... Dickens...

"Electronic communication will never be a substitute for the face of someone who with their soul encourages another person to be brave and true"

frogesque
2004-Dec-22, 09:28 PM
Thanks for the update ToSeek

Grizzly Yep, theres some interesting bits of shrapnel lying about besides the main sections. I hope there is a reasonable crater though, even 12 inches (300mm) in hard ground would still be a lot more than Oppy can scuff out.

01101001
2004-Dec-23, 11:52 PM
I don't see much of a crater. Oh, it's wide, maybe the 2.6 meter diameter of the heat shield, but it looks pretty shallow. I suspect the heat shield hit horizontally, blowing maybe 5-10 cm of soil off the underlying bedrock and bounced.

Exploratorium navcam image December 23 (http://qt.exploratorium.edu/mars/opportunity/navcam/2004-12-23/1N157047868EFF40A3P0685L0M1.JPG)

More navcam images December 23 (http://qt.exploratorium.edu/mars/opportunity/navcam/2004-12-23/)

lyford
2004-Dec-24, 12:07 AM
In this one -
Navcam Image (http://qt.exploratorium.edu/mars/opportunity/navcam/2004-12-23/1N157047817EFF40A3P0685L0M1.JPG)

Can it be? Is it possible?

MR. BUNNY'S BACK!

http://homepage.mac.com/lyford/ramm/mrbunny.jpg

01101001
2004-Dec-25, 09:04 AM
Spring on Mars (http://qt.exploratorium.edu/mars/opportunity/pancam/2004-12-25/1P157123523EFF40A3P2359R1M1.JPG)

Separation spring, I suppose. MER Descent technical document PDF (http://techreports.larc.nasa.gov/ltrs/PDF/2004/mtg/NASA-2004-14sfmm-br.pdf):


After the parachute is deployed, a sequence of events must take place for a successful landing. Twenty seconds after mortar fire, at heatshield jettison, six pre-compressed springs push the heatshield away from the rest of the entry capsule.

frogesque
2004-Dec-25, 10:40 AM
I know it's silly but that photo gives me a great sense of loss. Somehow seeing a junkyard Mars in close up makes it just too close to Earth. The past year has been exciting and we've learned so much about our little red neigbour but the mystery and sense of wonder will not be quite the same.

01101001
2004-Dec-25, 04:20 PM
I know it's silly but that photo gives me a great sense of loss. Somehow seeing a junkyard Mars in close up makes it just too close to Earth.
Relax. They made it biodegradable.

Oops.

Yeah, I think I know what you mean. Mars is changing.

But, all I can think of is: To make an omelette, you have to break some eggs.

PhantomWolf
2004-Dec-26, 01:55 AM
I know it's silly but that photo gives me a great sense of loss. Somehow seeing a junkyard Mars in close up makes it just too close to Earth. The past year has been exciting and we've learned so much about our little red neigbour but the mystery and sense of wonder will not be quite the same.

The biggest litter louts in the Solar System. Look at all the junk we've left all over the place, Venus, the Moon, Earth Orbit, Mars.....

EFossa
2004-Dec-26, 02:13 PM
:roll: ......Eagle Crater....the parachute and backshell, Endurance Crater and the heatshield will be a protected national Martian park in 500 years, and a popular tourist attraction im sure :wink: Same with Spirit in Gusev Crater. Perhaps you'll be able to visit all the landers in a complete package holiday.

Omicron Persei 8
2004-Dec-26, 08:54 PM
The biggest litter louts in the Solar System. Look at all the junk we've left all over the place, Venus, the Moon, Earth Orbit, Mars.....

I don't see Venus treating our barrage of past surface and atmospheric probes too kindly. By the time we get back to the surface I doubt we'd really know what we were looking at if we came upon them again. The environments of Mars and the Moon are almost perserving....not Venus though.

01101001
2004-Dec-27, 09:23 AM
This I did not know:

We sent oak tree bark to Mars.

From NASA MER Mission : Spacecraft : Aeroshell (http://mars.jpl.nasa.gov/mer/mission/spacecraft_edl_aeroshell.html)


The [aeroshell] ablator itself is a unique blend of cork wood, binder and many tiny silica glass spheres. It was invented for the heat shields flown on the Viking Mars lander missions 25 years ago.

Amadeus
2004-Dec-27, 09:44 AM
In this one -
Navcam Image (http://qt.exploratorium.edu/mars/opportunity/navcam/2004-12-23/1N157047817EFF40A3P0685L0M1.JPG)

Can it be? Is it possible?

MR. BUNNY'S BACK!

http://homepage.mac.com/lyford/ramm/mrbunny.jpg

*Happy Dance*
:D He's back from the dead!

Doodler
2004-Dec-27, 06:38 PM
I was just thinking (bad habit, I know), but given the kinds of missions we're sending out there, is the idea of a heat shield that does double duty both as a protective device and impromptu shovel such a bad thing? Saves a bit on labor once the probe's down. Plus its something you can adjust in later missions not based around geological studies.

John Kierein
2004-Dec-28, 01:29 PM
It looks like it dug into some
coal. (http://marsrovers.jpl.nasa.gov/gallery/all/1/p/328/1P157314346EFF40A3P2360L7M1.JPG)

01101001
2004-Dec-28, 06:13 PM
It looks like it dug into some
coal. (http://marsrovers.jpl.nasa.gov/gallery/all/1/p/328/1P157314346EFF40A3P2360L7M1.JPG)
A little more llikely, some of the charred cork ablator was dislodged from the heat shield (http://origin.mars5.jpl.nasa.gov/gallery/all/1/p/328/1P157308427EFF40A3P2579L2M1-BR.JPG).

01101001
2004-Dec-28, 09:08 PM
Panoramic mosaic of Opportunity heat-shield and impact crater (http://photojournal.jpl.nasa.gov/catalog/PIA07157)

http://photojournal.jpl.nasa.gov/thumb/PIA07157.jpg (http://photojournal.jpl.nasa.gov/catalog/PIA07157)

Cugel
2004-Dec-29, 12:08 AM
Well, I don't know. The impact crater doesn't look very interesting to me. Too shallow and lots of contamination. The heatshield itself looks a bit more exciting (compared to the rest of the ummm.. view) but how can you tell what damage was done by the impact and how much was ablated by entry heating? I'd say, let's move on!

01101001
2004-Dec-29, 01:00 AM
Well, I don't know. The impact crater doesn't look very interesting to me. Too shallow and lots of contamination. The heatshield itself looks a bit more exciting (compared to the rest of the ummm.. view) but how can you tell what damage was done by the impact and how much was ablated by entry heating? I'd say, let's move on!

Well, at a minumum, they need some closeups of the heatshield ablative layer to see how much is still there. Perhaps next time they could be less conservative and send a thinner layer and use the weight and volume savings for more instrumentation. There is yet much to learn here.

Amadeus
2004-Dec-29, 01:14 PM
What are the odds that the wood/cork material was completly sterile?

Could there have ben any spores,seeds or animal life in it?

Might be interesting to have another look at this area in a few years to see if anything is growing.

Also if there is anything hibernating in the martian soil maybe this addition of organic material could spark some growth...

ToSeek
2004-Dec-29, 03:27 PM
What are the odds that the wood/cork material was completly sterile?

Could there have ben any spores,seeds or animal life in it?

Might be interesting to have another look at this area in a few years to see if anything is growing.

Also if there is anything hibernating in the martian soil maybe this addition of organic material could spark some growth...

The spacecraft were treated so as to minimize the number of microbes on board - I assume this would cover the heat shields as well.

ToSeek
2004-Dec-29, 04:53 PM
Taking a close look. (http://qt.exploratorium.edu/mars/opportunity/pancam/2004-12-29/1P157576671EFF40B0P2580L2M1.JPG)

Looks like really beat-up shag carpet to me. ;)

Navcam (wider) view. (http://qt.exploratorium.edu/mars/opportunity/navcam/2004-12-29/1N157575101EFF40B0P1985L0M1.JPG)

Did they decide not to bother with the crater and just have a look at the heat shield?

01101001
2004-Dec-29, 05:38 PM
Did they decide not to bother with the crater and just have a look at the heat shield?
They have so much science data already that I bet engineering gets the priority in this location.

ToSeek
2004-Dec-30, 05:30 PM
Mars Rover to Examine Heat Shield (http://story.news.yahoo.com/news?tmpl=story&cid=624&ncid=624&e=4&u=/ap/20041230/ap_on_sc/mars_heat_shield)


Over the next few weeks, Opportunity will examine the heat shield that it jettisoned on Jan. 24.

Weeks!? Heck, get that rover's chassis down to Victoria Crater where it belongs!

Doodler
2004-Dec-30, 07:07 PM
Mars Rover to Examine Heat Shield (http://story.news.yahoo.com/news?tmpl=story&cid=624&ncid=624&e=4&u=/ap/20041230/ap_on_sc/mars_heat_shield)


Over the next few weeks, Opportunity will examine the heat shield that it jettisoned on Jan. 24.

Weeks!? Heck, get that rover's chassis down to Victoria Crater where it belongs!


Patience, Google-hoppa, one cannot explore a foreign shore if one's boat might spring a leak on arrival.

/cuegong

Cugel
2004-Dec-31, 09:24 PM
Maybe there is another reason for staying at the heatshield for a few weeks.
Sunlight conditions are still not very well at Meridiani and driving takes a lot of current. So right now the rover could do only 2 or 3 hours of driving each sol, leaving it in rather uninteresting territory for a long time. Time better spent studying the heatshield, only leaving this spot when the sun is somewhat higher in the sky. Leaving later might result in more or less the same time of arrival at more interesting locations in the south.

This also makes me wonder what a nuclear powered rover could do at Meridiani. Driving 8 or even 10 hours per day, how much distance would it cover? My guess is 2 or 3 miles per sol, easy. With over 700 sols of mission time it could cross all of Meridiani and maybe even reach Vallis Marineris in the west. Or am I too optimistic?

ToSeek
2005-Jan-05, 03:53 PM
Good view of the heat shield crater (http://qt.exploratorium.edu/mars/opportunity/pancam/2005-01-03/1P157924936EFF40B8P2366L2M1.JPG)

It obviously didn't dig much of a hole - guess that's why they're not investigating it more closely.

Superluminal
2005-Jan-05, 10:48 PM
Interesting thought: This is the first crash ivestigation on another planet. And, of course there are alot of crash sites to investigate on Mars.

ToSeek
2005-Jan-06, 05:00 PM
Dust storm at Meridiani, reducing power to Opportunity:


Opportunity is healthy and has reached the site where its heat shield hit the ground. The rover will make detailed observations of the heat shield's remains, weather permitting. The rover experienced its first dust storm since landing, which has affected the amount of energy Opportunity gets each sol. When the rover landed nearly one Earth year ago, a dust storm was subsiding and the atmosphere had an opacity of 0.9 (the higher the number, the murkier the skies). Since then, the opacity had improved significantly and was roughly 0.5 on sol 327. On sol 328 the opacity jumped to 0.6 then to 0.8, 1.2, and 1.25 on sols 329-331. As of sol 332 it is at 1.2 and dropping. Images from Mars Global Surveyor orbiter have confirmed the presence of a few small dust storms in the region. The energy intake has decreased roughly 30 percent, leaving Opportunity with less energy for operations and communications but still enough, with comfortable margin, to continue with the plan to investigate the heat shield remains. The dust storms will be monitored carefully using the rover's own instruments and images from Mars Global Surveyor. The team will also be walking through low-energy contingencies should they become necessary.

lyford
2005-Jan-06, 07:22 PM
Dust storm at Meridiani, reducing power to Opportunity:

I wonder how the dust storms affect deposition on the panels - in one way it's obviously worse with the atmospheric opacity increased, and with all that dust in the air some will land on the panels, but is there a possibility of a "sandblast" effect actually scouring dust off the panels if the wind velocity is high enough?
Judging from Opportunity's recent rear Hazcam pics, it looks like my sandblast theory actually dirtied up the lenses, but on a horizontal surface.....?????

V-GER
2005-Jan-08, 01:36 AM
Hi everybody,

Since I'm new here I don't know if your familiar with the site www.marsanomalyresearch.com

Its' hilarious, with in depth reports on the said heat shield and other "anomalies". It mainly focuses on image tampering and the on-site
investigator claims to be some sort of an expert when it comes to anylizing digital photographs. For example, where others might see digital pixelation in enlarged pictures, he sees gigantic cities with skyscrapers...

Anyway, if you're familiar with it let me know what you think or is it just one among many Hoagland-esque sites? that site is one of the reasons I found my way here.