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Endeavour Drive - Drivability analysis
climber
post Sep 23 2008, 12:46 PM
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Plus we could quite already be there by next Mars winter.


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RobertEB
post Sep 23 2008, 01:30 PM
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This is great news. The trip to Victoria was the most exciting space journey I ever witnessed. This one will be just as exciting.


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AndyG
post Sep 23 2008, 01:46 PM
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With apologies to Mr Shakespeare and, of course, our very own poet laureate:

A Sonnet for Opportunity

Alight on Mars and now work your thoughts: feast
The mind's eye on the edge of Victoria.
See our heroine now looking southeast
Eyes focussed on this brave new endeavour.
As thin air tugs sand-blasted mast, behold!
Wheels turn, powered by Phoebus' distant light
And with steady grip, this valiant soul,
Now roves to take on the furrow'd sight
That stretches before: the constant billows
Of the endless, immutable, sand-sea
Whose lofty, rusted surge in past days
Became a near-fatal purgatory.
So wish her luck with this dangerous quest
And should failure await, think on her best.

Andy
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Tman
post Sep 23 2008, 02:03 PM
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I wonder in which way the HIRISE folk could help by processing these huge images for better visualization and understanding of possible paths. Run they any special software to create enhanced reliefs from the images?


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djellison
post Sep 23 2008, 02:06 PM
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Well - shape from shading with ISIS would work to a degree, but to be honest, human judgement is probably best.

Doug
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RoverDriver
post Sep 23 2008, 02:18 PM
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QUOTE (djellison @ Sep 23 2008, 06:06 AM) *
Well - shape from shading with ISIS would work to a degree, but to be honest, human judgement is probably best.

Doug


I am pretty sure shape from shading would work, but when I worked on Victoria a student who worked in my group did terrain classification from texture and color and the results were quite impressive. Unfortunately she is now working for Google. Maybe I'm going to ping her and see if I can get ahold of her code. I agree with you that human processing is probably more flexible. I definitely was not planning to just use the map and let Opportunity blindly drive through. MANY eyes will look over HiRISE, PANCAMs and NAVCAMs.

Paolo


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MahFL
post Sep 23 2008, 02:23 PM
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I am encouraged to hear Oppy won't be commanded to drive blindly !!!!!

pancam.gif
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centsworth_II
post Sep 23 2008, 02:59 PM
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QUOTE (TheChemist @ Sep 23 2008, 04:45 AM) *
Please, don't waste any time looking at the "path" I posted earlier... I thought the tone and copious use of smilies made the (lack of) seriousness of the post clear.

Too late. Your route has already been coded, uploaded, and locked into Opportunity's navigation program. Off we go and good luck! laugh.gif
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Guest_Oersted_*
post Sep 23 2008, 03:49 PM
Post #189





Guests
Ok, it is great fun to make route maps, but obviously not what Paolo needs, as he said so well.

What´s needed is an overview map, with ripple type areas clearly delineated. I still didn´t see a better suggestion, IMHO, than the one I posted earlier in the thread and which I copy here below.

Sorry for the impertinence, but I think we should focus on what Paolo is asking for and not go out in a lot of fascinating but not really relevant tangents, with poetry, specific route maps, etc.

This is the first time we´re getting a request from the rover team for actual help. We got it because the cumulative talents at UMSF are very impressive. But let´s focus those talents on the job at hand!

QUOTE (Oersted @ Sep 22 2008, 05:49 PM) *
Great idea Cody, that's what I want to see too!

Colouring for area ripple orientation and area ripple height (inferred by spacing) is a good idea, but I have a different suggestion:

We could have a "geological" map with differently striped areas, where the striped areas are enlarged images of the prevalent ripple structure in a given area. Either artificially drawn stripes or photographic enlargements of a typical ripple structure in the given area.

We'd then have a clear overview map with striped areas, where stripe width and orientation indicate the structure of the given area. I think that would be a nice tool for large-scale planning of this mega-drive, because the underlying ripple/surface structure would be immediately obvious to the eye, with no extra effort required to "translate" colouring to a particular terrain type. Good map-making is about immediately and instinctively being able to infer information.

A map that could be printed out in 1x2 meters would be a great "overview" tool to hang on the wall in the rover driver's room.
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Guest_Oersted_*
post Sep 23 2008, 03:55 PM
Post #190





Guests
I´ve highlighted our MISSION STATEMENT, as set out by Paolo, in bold:

QUOTE (RoverDriver @ Sep 23 2008, 02:23 AM) *
Seriously, at the moment I'm trying to find a way to classify the HiRISE image that includes VC and surrounding areas so that we can identify areas that look similar to what we have driven on.

Paolo


No route but a visual classification of surface and ripple type areas.
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marsophile
post Sep 23 2008, 04:13 PM
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It might help to have a collection of example HIRISE images of the terrain that has already been driven over, with an indication of how easy or difficult it was to traverse. The indication could either be subjective (coming from the rover driver), or a measure of the number of meters covered in that drive. This could be used as a guide in analyzing the new terrain.
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djellison
post Sep 23 2008, 04:15 PM
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QUOTE (marsophile @ Sep 23 2008, 05:13 PM) *
It might help to have a collection of example HIRISE images of the terrain that has already been driven over,


Phil already did that.
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centsworth_II
post Sep 23 2008, 04:20 PM
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QUOTE (djellison @ Sep 23 2008, 12:15 PM) *
Phil already did that.

http://www.unmannedspaceflight.com/index.p...st&p=126432
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Phil Stooke
post Sep 23 2008, 05:57 PM
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Someone asked about a comparison of LeMonnier and Endeavour - 'which was the largest crater explored by a rover?'

Here's a side by side comparison from Map-A-Planet - you can have endless fun playing with that website. The scale is almost the same. The grids are 1 degree for the Moon and 0.5 degree for Mars, both about 30 km per grid space, to provide scale. LeMonnier is twice the diameter of Endeavour, at least, and much more dramatic.

Phil

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antoniseb
post Sep 23 2008, 06:00 PM
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QUOTE (Phil Stooke @ Sep 23 2008, 11:57 AM) *
Someone asked about a comparison of LeMonnier and Endeavour - 'which was the largest crater explored by a rover?'


How's LeMonnier compare to Gustav?
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