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MSL Curiosity Lands Safely in Gale Crater, Landing and Commissioning Activity Period 1A, sols 0-8
markril
post Sep 6 2012, 05:23 AM
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QUOTE (3d_mars @ Sep 5 2012, 08:31 PM) *
Very nice Mark! Which images did you use as source images? I followed the links but there are many different types of images and I'm not sure which ones to use to make my own.


Thanks, I opened the grayscale map-projected images under the JP2 DOWNLOAD section (the big ones) using the HiView software which can be downloaded here:

http://www.uahirise.org/hiview

You can either browse the files over the Internet or download locally which makes things faster. HiView will let you save a screen shot of whatever you are looking at. Be sure to adjust contrast (in the Statistics view) using HiView before saving the images because the JP2 files seem to be 10-bit samples. That way you can get as much dynamic range as necessary in an 8-bit sample.

Mark
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elakdawalla
post Sep 6 2012, 06:04 AM
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HiView is an awesome tool and I wish more people would use it. Something I learned recently, to my chagrin: among the many options of JP2 images provided from each HiRISE image page are two "merged" products in which the center color strip is merged with the wider grayscale (infrared) image. Those merged products usually have half the resolution of the rest of the JP2 products available from the same page -- 50cm/pixel instead of 25 cm/pixel. If you want maximum resolution, stay away from those.


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RoverDriver
post Sep 6 2012, 06:52 AM
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I use the kakadu software toolkit. They have a free sw download that includes kdu_expand to convert JP2 into other formats, kdu_compress to do the opposite, and kdu_show which similarly to HiView allows you to view directly JP2 images.

Paolo


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pmetschan
post Nov 19 2012, 11:05 PM
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Do we have any news about EDL reconstruction?
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RoverDriver
post Nov 20 2012, 01:31 AM
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I just met one of the EDL people and they are still working on it. Between the deserved vacations of the various people involved and the holidays this is taking longer than I thought. I'm really curious (no pun intended) to see the resulting animation.

Paolo


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djellison
post Nov 20 2012, 01:45 AM
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So are we in the 'Eyes...' team. The EDL viz will be updated once the reconstruction is finished.
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pmetschan
post Nov 20 2012, 07:24 AM
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QUOTE (RoverDriver @ Nov 19 2012, 05:31 PM) *
I just met one of the EDL people and they are still working on it. Between the deserved vacations of the various people involved and the holidays this is taking longer than I thought. I'm really curious (no pun intended) to see the resulting animation.

Paolo


Is there a list somewhere of the data points. I would love to get some insight into how high fidelity the sim will be? For instance do we know which wheel hit first, or how much "swing" or "twisting" the rover was doing during sky crane? etc
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RoverDriver
post Nov 20 2012, 10:00 AM
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I'm not involved with the EDL reconstruction but I would be surprised if they would release more than an animation.

Paolo


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MahFL
post Nov 20 2012, 01:20 PM
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QUOTE (RoverDriver @ Nov 20 2012, 11:00 AM) *
I'm not involved with the EDL reconstruction but I would be surprised if they would release more than an animation.

Paolo


Are they not required to release it all to the PDS eventually ?
Also I would imagine from all the instrumentation they'll have a really good and precise EDL reconstruction. As they want to be able to sell/re-use the guided entry and Sky Crane for other missions.
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mcaplinger
post Nov 20 2012, 04:32 PM
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QUOTE (MahFL @ Nov 20 2012, 06:20 AM) *
Are they not required to release it all to the PDS eventually ?

AFAIK, they have to release the raw data eventually (see http://starbrite.jpl.nasa.gov/pds/viewProf...-IMU-4-EDL-V1.0 for MER, it is dated as released in August 2004) but I don't think they're required to release any processing or reconstruction.


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dvandorn
post Nov 27 2012, 04:47 PM
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Sorry for the bump, but I do believe this question belongs in this thread.

So far in the short traverse that Curiosity has completed to Glenelg, we've seen some pretty uneven terrain that, in places, is rather heavily rock-strewn. Perhaps enough to have caused some issues at touchdown had the rover landed in some of the spots we've passed.

That said, had MSL landed exactly in the center of its planned landing ellipse, from what we can see in MRO images and can infer to ground conditions based on the traverse thus far, does anyone think the terrain could have caused issues on landing?

I know that the floor of Gale is turning out to be a lot more textured and non-flat than I would have expected from the pre-landing imagery.

-the other Doug


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Phil Stooke
post Nov 27 2012, 05:24 PM
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Regarding EDL: "Are they not required to release it all to the PDS eventually ?"

No - science data go to PDS. There is no requirement to release engineering data including EDL. Some release might be prevented by ITAR anyway.

Phil



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RoverDriver
post Nov 27 2012, 05:26 PM
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This paper is free untill the 30th and it would be your best source of information regarding landing risk assessment. If you have specific questions I think I can get to the raw data, both from a landing risk and a driving risk.

Paolo


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