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Science and Technology "Somewhere, something incredible is waiting to be known." - Carl Sagan.

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Old August 6 2012, 08:11 PM   #91
J. Allen
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Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

Data Holmes wrote: View Post
J. Allen wrote: View Post
Yeah, I remember reading the landing sequence and my first thought was "they're going to do what?"
Ok, J. I totally read the "they're going to do what" of your post in the delivery of Tim Robbins as Merlin in Top Gun when, during the final dogfight, Maverick tells him he's bringing the MiG in closer.

You will know what I'm laughing at if you know the scene I'm talking about.


Yeah, that sounds about right!

Seriously, though, I was on pins and needles during those last few seconds.
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Old August 6 2012, 10:33 PM   #92
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Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

YellowSubmarine wrote: View Post
The parachute photograph is truly the most unique photograph in existence.
Except for the similar photo that MRO took of Phoenix as it was landing near the martian north pole in 2008.

http://en.wikipedia.org/wiki/File:Ph...uring_EDL2.jpg

And the Mars Odyssey photo taken by the Mars Global Surveyor.

http://en.wikipedia.org/wiki/File:Mgs_odyssey.gif


A photo of the parachute in action? It gives me the goosebumps...
That's true. It's cool that now our spacecraft can photograph each other in action.
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Old August 6 2012, 10:43 PM   #93
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Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

I'm always amazed at the ever increasing quality of images we get back from these things.
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Old August 7 2012, 12:09 AM   #94
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Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

A shame MRO couldn't take video of the descent.
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Old August 7 2012, 12:15 AM   #95
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Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

Data Holmes wrote: View Post
I'm always amazed at the ever increasing quality of images we get back from these things.
I'm far more amazed about the current state of autonomous control of robots that made this even possible.. just a decade or so ago it would have been impossible to pull off such a landing without direct human control (or a vastly simpler approach).
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Old August 7 2012, 12:38 AM   #96
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Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

FPAlpha wrote: View Post
Data Holmes wrote: View Post
I'm always amazed at the ever increasing quality of images we get back from these things.
I'm far more amazed about the current state of autonomous control of robots that made this even possible.. just a decade or so ago it would have been impossible to pull off such a landing without direct human control (or a vastly simpler approach).
Was it really, or was it a simple matter of no one seriously trying?
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Old August 7 2012, 12:55 AM   #97
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Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

Where are the pics?!
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Old August 7 2012, 01:27 AM   #98
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Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

There's some individuals out there asking why we don't get real time video. It's not exactly easy having a reliable, high throughput, high bandwidth stream that supports standard definition video, much less HD video over such distances. Unless they're using some miraculous compression schemes I haven't heard of...

In any event, here's a description of the cameras on the rover:

The Mars Science Laboratory (MSL, aka the Curiosity) has two mast cameras, as seen here. One has a fixed 34mm f/8 lens that covers a 15° field of view, covering 1200x1200 pixels on a 1600 by 1200 CCD. The other is a fixed 100mm f/10 lens, with a 5.1° field of view on an identical sensor. You can see some pre-launch images taken with them here.
These cameras won't start showing they're stuff until later this week. They'll transmit color images as they have Bayer Pattern Filter CCDs, and have adjustable filters to capture different wavelengths of light:
Each Mastcam camera head also has a filter wheel, so that images taken by looking through filters covering different, narrow visible and near-infrared wavelengths can be obtained. Filters for the 34 mm Mastcam are (in nanometers): 440, 525, 550, 675, 750, 865, 1034, and 440(neutral density). Filters for the 100 mm Mastcam are (in nanometers): 440, 525, 550, 800, 905, 935, 1035, and 880(neutral density). The neutral density filters are for viewing the Sun. Each filter wheel also includes a visually clear (actually infrared rejection coated) filter for nominal RGB (red, green, blue) imaging using the Bayer Pattern CCD.
The cameras can also capture 720p video, full 360° panoramas, and even use both lenses to capture 3D images. This information won't be broadcast home instantly as the files are pretty large for such a long trip — the Rover has 8GB of onboard storage, and will transmit thumbnails back first, so that NASA can request the images it really wants to see.
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Old August 7 2012, 01:28 AM   #99
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Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

Trekker4747 wrote: View Post
Where are the pics?!
It'll be a couple more days before they deploy the stereo camera boom and send along the high-resolution color shots. Right now, we're just seeing stuff from the lo-res collision-avoidance cameras. The latest is a picture of Mt. Sharp that looks like a bright something on a darker background. There just isn't much point to sending a lot of pictures until the boom deploys.


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Old August 7 2012, 02:39 AM   #100
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Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

This is so awesome, I could kiss that rover.
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Old August 7 2012, 03:46 AM   #101
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Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

Ar-Pharazon wrote: View Post
A shame MRO couldn't take video of the descent.
What about descent pictures taken by MSL?




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Old August 7 2012, 10:45 AM   #102
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Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

Pavonis wrote: View Post
Except for the similar photo that MRO took of Phoenix as it was landing near the martian north pole in 2008.

http://en.wikipedia.org/wiki/File:Ph...uring_EDL2.jpg

And the Mars Odyssey photo taken by the Mars Global Surveyor.

http://en.wikipedia.org/wiki/File:Mgs_odyssey.gif
Oh, I nearly forgot about the Phoenix one. Amazing stuff. In the Curiosity one though you can see much more detail (assuming that the parachute details in the dark one are post-processing filters, and not retouching). It's uncanny.

Not that those two aren't any less hair-rising when you think what's on them and where they are shot.
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Old August 7 2012, 01:53 PM   #103
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Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

Curiosity's chute is twice the size of Phoenix's chute. That's why you can see more detail. Though the parachute lines are visible on Phoenix but not Curiosity.
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Old August 7 2012, 03:31 PM   #104
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Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

A video would have been awesome, even if it took a month to download.
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Old August 7 2012, 04:49 PM   #105
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Re: Mars Curiosity Rover... to land 10:31 pm 8/5/2012

Lindley wrote: View Post
A video would have been awesome, even if it took a month to download.
Some day. Maybe for Europa!
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