saw this on FB today. Supposedly of Earth from Mars...
https://scontent-b-sea.xx.fbcdn.net/...97336776_o.jpg
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saw this on FB today. Supposedly of Earth from Mars...
https://scontent-b-sea.xx.fbcdn.net/...97336776_o.jpg
That's badass.
Yep, in the zoomed in version you can get a couple pixels that are the Moon:Quote:
Originally Posted by Tye 1on
http://photojournal.jpl.nasa.gov/jpe...935_modest.jpg
Back in 2003 we took a cool picture of Earth Moon and Jupiter with the camera on the MGS spacecraft in orbit at Mars:
http://www.msss.com/mars_images/moc/.../earth_200.jpg
http://www.msss.com/mars_images/moc/...upiter_200.jpg
http://www.msss.com/mars_images/moc/2003/05/22/
In other recent news our pictures got a second cover of Science:
http://www.sciencemag.org/content/34.../F1.medium.gif
And the rover drivers got the rover over this dune:
http://photojournal.jpl.nasa.gov/jpeg/PIA17931.jpg
406, been following this thread from the start.
Just to chime in and voice out : thanks for providing awesome stoke. And your bosses should give you a sixpack of chateau lafite for your awesome social skills to take the time to put this stuff out. Way too often
things (usually not like this awesome) gets buried in the institutions archives.
You are one blessed mang to be part of this kind of stuff.
Respect..and thanks!
^^^Thanks!
Looking back at the rover tracks after driving over the ~3 ft tall dune about a month ago:
http://photojournal.jpl.nasa.gov/jpeg/PIA17944.jpg
Might be one of my favorite mosaics.
WOW.. Just found this thread... Fascinating to say the least. Thanks for the pics and education. Congrats on the cover photo etc. Looking forwards...
FKNA!!!!:D
that landscape reminds me of Death Valley...
'the rover drivers'...what a fun job, i think? What's the time delay between when they give a 'command' and the rover responds?
No wonder they haven't found any intelligent life.
Fuckin thing landed in Nevada.
Yeah, they are near the top of the pecking order. Although I think their job would be rather stressful. They also get to move the arm around. The time delay varies, but fastest is: plan commands during Earth day and uplink a Mars days worth of commands at the end of shift, everything runs over night on Earth(day on Mars), downlink showing confirmation of commands would be available next Earth morning.Quote:
Originally Posted by Tye 1on
Every time i look at these pics, it blows my mind that we're looking at another planet.
Thanks for continuing to update the thread.
takes a whole different kind of smart to keep track...I damn near have to get out a calculator to figure out what time it is in Europe, you guys can go all planetary in your heads...Quote:
Originally Posted by 406
So 406 what do you make of this?
http://www.dailymail.co.uk/sciencete...ed-planet.html
To rephrase my question, what is the actual physical/scientific explanation in terms of what the source of the anomaly is?
JPL put out a press release about it:Quote:
Originally Posted by Lane Meyer
http://www.jpl.nasa.gov/news/news.php?release=2014-108
We see cosmic ray hits in the images often.
Heh I thought of this thread when I Ann article about the image.
Very cool to be involved in a project like this, Thanks
Is that due to the lack of atmosphere? Or some other cause?Quote:
Originally Posted by 406
As I understand it, the same issue happens occasionally with ground based sensors as well. But yes the atmosphere and magnetic field help protect things here
doughnuts?Quote:
Originally Posted by DeathVan
Doesn't help, but also lack of magnetic field doesn't help. However, you can also get them from decaying radioactive material. Earth based CCD instruments also get them...I recall one paper about some telescope, they blamed them on something decaying in the concrete. More common to see the cosmic ray artifacts in longer exposure images.Quote:
Originally Posted by Phildo_Baggins
Quote:
Originally Posted by Lane MeyerSo 406 what do you make of this?
http://www.dailymail.co.uk/sciencete...ed-planet.html
Quote:
Originally Posted by 406
To rephrase my question, what is the actual physical/scientific explanation in terms of what the source of the anomaly is?
i'm just trying to help the last page and this one mesh, this ^^^ was the most recent query/reply...
most awesomest thread ever...
^^^I wouldn't call it an anomaly, cosmic rays commonly leave artifacts such as this in images.
If it is glint off a rock, that would be interesting, but not likely.
The part that's interesting is that it appeared in the same spot two days in a row. Would a cosmic ray do that? I don't really know enough about them.Quote:
Originally Posted by 406
yes it is possible, it just so happened that they hit on the CCD in an spot that was the approximate same geographic location. But doesn't rule out shiny rock.Quote:
Originally Posted by Phildo_Baggins
Unofficial version of the latest MAHLI selfie:
Attachment 155832
Also, MCAM looking back of the tracks as MSL drove away from the drill spot:
Attachment 155831
Is that a hole on the middle wheel?
ok i'm a dumbfuck. How does it take a selfie when there's no arm that would hold the camera visible?
Yep, the front and middle wheels have a bit of damage. They are now doing better route finding and driving backwards to help limit the damage. But nothing so far is major, it looks worse than it is an impact to performance. Here is a MAHLI image from the other day:Quote:
Originally Posted by abraham
http://mars.jpl.nasa.gov/msl-raw-ima...90E01_DXXX.jpg
so i guess the various materials used, say in those wheels, degrade differently than they would in our atmosphere? Maybe there's no rust, but if there was, like, little oxygen, and that was known, would different materials be used?
It is lots of photos mosaiced into what looks like a selfie. MAHLI is mounted on a turret at the end of the arm but the arm was positioned out of the shot in the images, or portions of images, used in the mosaic. If you look at the shadow you can see the turret and full arm. Here is the frame with part of the arm in it:Quote:
Originally Posted by Tye 1on
http://mars.jpl.nasa.gov/msl-raw-ima...12E00_DXXX.jpg
How fast does the camera take a photo? It's not like you have to worry about people walking around.
And can pictures be taken while moving or is it only done from a stop?
No it is physical damage, not weathering. They are machined from a block of aircraft grade aluminum, I think the "problem" is they are too thin...but not sure what the official answer is or if it is a problem.Quote:
Originally Posted by Tye 1on
lead rover driver Matt Heverly said that the damage was to be expected. “The ‘skin’ of the wheel is only 0.75mm thick and we expect dents, dings, and even a few holes due to the wheels interacting with the rocks,”
With no autofocus as fast as a few seconds...autofocus takes tens of seconds. Yes we can take pictures and video while moving...but so far everything post EDL has been while not driving.Quote:
Originally Posted by abraham
Awesome stuff 406! Again.
Have to say I would not like to be the guy that calls the shots deciding what materiel you are going to use -vs- launchweight -vs- extra energy consumption when rolling...
Must be helluva task to calculate the redundancy-benefit-risk factors.
A quick question : Do you have a general plan/algorithms to match the color temp with your different cameras? Like, you use what, 4 different cameras with different wave
lengths, optical properties, shoot on a planet with peculiar atmosphere and different light and weather.
Are your certain photos graded for civilian consumption in that sense that they are graded towards "this is what a human eye would see" and then you have the
wide spectrum/false color images for all the propellerheads to analyze? Like the selfie and the vista picture are quite different looking.
Great little article in the WashPost here.
There's a short vid talking about the selfie and a hole it drilled [is what the caption says, i haven't watched it yet].
Happy Marsiversary! [687 Earth days = 1 Martian year, who knew? ;)]
They all have bayer color filter arrays, so the basic images from the camera isn't too different from what the eye would see. We have a standard color balance product that we release to the public, called RDRs. But I think most people that are into that are likely doing their own post processing.Quote:
Originally Posted by Meathelmet
From the SIS: Differences in filter and optics transmission and detector sensitivity as a function of wavelength cause color shifts in images unrelated to the actual color of the scene. For the color-corrected image products, we have applied empirically-derived color coefficients derived from imaging neutral gray targets under solar illumination in ground testing. The outcome for flight images is roughly what the planetary surface would look like if it were viewed by the human eye in situ. However, for quantitative color analysis, the radiometrically-corrected but not color corrected products should be used.
More details:
http://pds-imaging.jpl.nasa.gov/data..._RDR_DPSIS.PDF
Section 5 has all the post processing info for RDRs.
I just did an "artistic" auto color balance in GIMP. Time of day can also makes a difference.Quote:
Originally Posted by Meathelmet
That was some heavy duty reading there! Thanks for your time for posting that and answering our questions.Quote:
Originally Posted by 406
Checking our holes in Pahrump :o
http://mars.jpl.nasa.gov/msl/images/...18609-full.jpg
http://mars.nasa.gov/images/mars-cur...18608-full.jpg
[ right click and open in new tab for full size]
You have anything to do with the Pluto photo expedition? Pretty wild 'waking up' a spaceship after nine years of travel....
NPR Morning Report story
Nope. But do have a camera going to Jupiter orbit that launched in 2011 and doesn't arrive until 2016...not as long as Pluto, but seems like forever.Quote:
Originally Posted by Tye 1on
http://mars.jpl.nasa.gov/msl-raw-ima...1_DXXX-br2.jpg
Wheels on Mars!
^^^good find. We just took that one last week, the front view of it on the pebble is pretty cool also.