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Distant vistas, Endeavour, Iazu, and beyond
fredk
post Jan 27 2010, 09:31 PM
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To answer Ustrax's querries from the other thread, I think we can now see more of the south west rim of Endeavour and Iazu. In this image I've lined up the views from 1987 pancam (colour on bottom, from Astro in this post) and 2136 navcam (top, from Ant's navcam mosiac):
Attached Image

The leftmost (Endeavour north rim) and middle (far rim) features look similar. But it looks like we can see more stuff on the right, which is Endeavour south rim and Iazu. The view we had a few sols ago (2133) of Iazu was still partly obscured by dunes, so it makes sense that we can see more now.

I can't see Bopolu in the navcams, though it could be there and buried in the jpeg noise...
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pgrindrod
post Feb 3 2010, 07:40 PM
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Yeah I'm troubled by the lack of visibility around the marker point too. My gut feeling is that this is all coming down to the underlying HRSC DEM, which is 75 m/px. This is probably too coarse to do a viewshed at the scale that we're interested in. But I've got to admit that this is the first real time that I've played around with this method so I'm still learning the ins and outs. Now if someone had a CTX DEM of round here... smile.gif

So I'm going to have a bit of a play around and see how things change as the marker moves around. I've got a feeling that I might be 'overinterpreting the data' as they say (ie making it up!). But the idea of moving around and averaging is interesting, and if I come up with anything then I'll put it up. I might even try a little bit of MOLA as well, see if that improves things, as that's what Tim Parker's LPSC contour map used I think.

Pete
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Posts in this topic
- fredk   Distant vistas   Jan 27 2010, 09:31 PM
- - Astro0   OT - but relevant to the above... The spot Oppy...   Jan 27 2010, 09:46 PM
|- - ngunn   QUOTE (Astro0 @ Jan 27 2010, 09:46 PM) OT...   Jan 28 2010, 10:42 AM
- - Tesheiner   Looking to the map again, what I see is that we ar...   Jan 28 2010, 11:44 AM
|- - ngunn   QUOTE (Tesheiner @ Jan 28 2010, 11:44 AM)...   Jan 28 2010, 12:44 PM
- - Phil Stooke   Ngunn, I was just about to say the same thing. Th...   Jan 28 2010, 01:06 PM
|- - ngunn   QUOTE (Phil Stooke @ Jan 28 2010, 01:06 P...   Jan 28 2010, 02:20 PM
- - ngunn   I'm also on the lookout for an isolated hill a...   Jan 28 2010, 03:35 PM
|- - fredk   QUOTE (ngunn @ Jan 28 2010, 04:35 PM) I...   Jan 29 2010, 03:48 AM
- - fredk   I've done a cross-section plot of the elevatio...   Jan 28 2010, 04:35 PM
|- - centsworth_II   QUOTE (fredk @ Jan 28 2010, 11:35 AM) I...   Jan 28 2010, 05:13 PM
- - Phil Stooke   You're welcome! Phil   Jan 28 2010, 04:44 PM
- - climber   "Curvature works against us". On flat gr...   Jan 28 2010, 04:53 PM
- - fredk   At the pancam height of 1.55 m, the horizon on Mar...   Jan 28 2010, 05:53 PM
- - fredk   So much to see in these latest navcams. Here...   Jan 29 2010, 05:22 AM
|- - ustrax   QUOTE (fredk @ Jan 29 2010, 05:22 AM) I t...   Jan 30 2010, 10:58 PM
|- - fredk   Fantastic views! Thanks everyone for putting ...   Jan 31 2010, 05:17 PM
- - ngunn   Comment and query copied from the other thread: I...   Jan 30 2010, 11:04 AM
- - Tesheiner   http://qt.exploratorium.edu/mars/opportuni...66P23...   Jan 31 2010, 09:21 AM
- - Stu   You want a "Distant Vista"???!! ...   Jan 31 2010, 09:30 AM
|- - ustrax   QUOTE (Stu @ Jan 31 2010, 09:30 AM) You w...   Jan 31 2010, 09:32 AM
- - nprev   I knew there had to be a significant up-side to ch...   Jan 31 2010, 09:59 AM
|- - ngunn   QUOTE (nprev @ Jan 31 2010, 09:59 AM) I k...   Jan 31 2010, 10:33 AM
- - Stu   ... and if you stretch the horizon until it begs f...   Jan 31 2010, 10:14 AM
- - ngunn   Are we still happy with these identifications? htt...   Jan 31 2010, 01:14 PM
|- - SFJCody   Takes me back to Spirit's first winter and wat...   Jan 31 2010, 01:20 PM
|- - jamescanvin   QUOTE (ngunn @ Jan 31 2010, 01:14 PM) Are...   Jan 31 2010, 02:02 PM
|- - ngunn   QUOTE (jamescanvin @ Jan 31 2010, 02:02 P...   Jan 31 2010, 02:10 PM
|- - Hungry4info   QUOTE (ngunn @ Jan 31 2010, 08:10 AM) I c...   Jan 31 2010, 02:30 PM
- - Reckless   Hi all It seems all I can say when posting here ...   Jan 31 2010, 02:33 PM
|- - centsworth_II   QUOTE (Reckless @ Jan 31 2010, 09:33 AM) ...   Jan 31 2010, 08:02 PM
- - djellison   What's kind of cool is that these images of th...   Jan 31 2010, 02:53 PM
- - Stu   ...and I made my pan at 7am, so they were just 8 h...   Jan 31 2010, 03:06 PM
- - Juramike   (at least some cameras ESA flies near Mars have a ...   Jan 31 2010, 03:55 PM
- - jamescanvin   Here are the horizon features plotted alongside an...   Jan 31 2010, 04:02 PM
- - Phil Stooke   The great thing about this is that the view is jus...   Jan 31 2010, 04:25 PM
|- - ngunn   QUOTE (Phil Stooke @ Jan 31 2010, 04:25 P...   Jan 31 2010, 05:18 PM
|- - NW71   Like many previous posts I am just in awe of both ...   Jan 31 2010, 07:33 PM
|- - centsworth_II   QUOTE (NW71 @ Jan 31 2010, 02:33 PM) 1 - ...   Jan 31 2010, 08:06 PM
|- - Tesheiner   QUOTE (NW71 @ Jan 31 2010, 08:33 PM) 1 - ...   Feb 1 2010, 08:58 PM
- - ngunn   That's excellent, thanks James! Now we can...   Jan 31 2010, 04:26 PM
- - fredk   Neil, Squyres was asked about Oppy's power lev...   Jan 31 2010, 08:18 PM
- - Reckless   Hi Centsworth_II I did realize that Oppy is furt...   Jan 31 2010, 08:26 PM
- - MoreInput   Cool. Spirit needed only 68 Sols from Bonneville t...   Jan 31 2010, 09:03 PM
- - Tesheiner   Below the minimum, I would say. Check the route fr...   Jan 31 2010, 10:58 PM
- - djellison   Time and again we've played the X metres in Y...   Jan 31 2010, 11:09 PM
- - nprev   The old saying "You can have it done fast, or...   Jan 31 2010, 11:14 PM
- - eoincampbell   Feels like the road to Endurance again, which is c...   Feb 1 2010, 05:52 AM
- - Astro0   Stretchy horizon comparison - animation.   Feb 1 2010, 12:34 PM
|- - ustrax   QUOTE (Astro0 @ Feb 1 2010, 12:34 PM) Str...   Feb 1 2010, 02:06 PM
|- - walfy   QUOTE (Astro0 @ Feb 1 2010, 04:34 AM) Str...   Feb 1 2010, 08:18 PM
- - Ant103   OMG !! This is amazing Astro0 !! W...   Feb 1 2010, 03:10 PM
- - Oersted   Oh, yes, that is a great animated gif Astro0!   Feb 1 2010, 05:30 PM
- - MoreInput   Cool animation. I starred the whole day long at it...   Feb 1 2010, 06:38 PM
|- - Tesheiner   QUOTE (MoreInput @ Feb 1 2010, 07:38 PM) ...   Feb 1 2010, 08:41 PM
- - pgrindrod   I've been meaning to post this for a while now...   Feb 3 2010, 10:00 AM
|- - Tesheiner   QUOTE (pgrindrod @ Feb 3 2010, 11:00 AM) ...   Feb 3 2010, 01:53 PM
|- - fredk   QUOTE (pgrindrod @ Feb 3 2010, 11:00 AM) ...   Feb 3 2010, 06:50 PM
- - djellison   Pete - chuck that Pathfinder demo of Viewshed in h...   Feb 3 2010, 10:42 AM
|- - pgrindrod   QUOTE (djellison @ Feb 3 2010, 10:42 AM) ...   Feb 3 2010, 02:04 PM
- - ngunn   There are just great. Any chance you could extend ...   Feb 3 2010, 02:40 PM
|- - ElkGroveDan   QUOTE (ngunn @ Feb 3 2010, 06:40 AM) Any ...   Feb 3 2010, 02:57 PM
- - ElkGroveDan   Did we all notice that the SW flank of Victoria sh...   Feb 3 2010, 02:53 PM
- - pgrindrod   Yeah I'm troubled by the lack of visibility ar...   Feb 3 2010, 07:40 PM
- - Phil Stooke   Here's an extreme vertical stretch of the hill...   Feb 5 2010, 02:57 AM
- - ngunn   Something dark on the skyline in this view, though...   Feb 6 2010, 09:31 AM
- - Tesheiner   Good catch, ngunn! The heading is consistent w...   Feb 6 2010, 12:37 PM
|- - fredk   QUOTE (Tesheiner @ Feb 6 2010, 01:37 PM) ...   Feb 6 2010, 06:10 PM
|- - Tesheiner   We will certainly have to keep an eye on those fea...   Feb 6 2010, 07:25 PM
- - Stu   Wow, we've only just got here and we can alrea...   Feb 6 2010, 01:04 PM
- - Stu   Concepcion and the Next Crater, seen at same scale...   Feb 6 2010, 01:21 PM
|- - ustrax   QUOTE (Stu @ Feb 6 2010, 01:21 PM) Concep...   Feb 6 2010, 04:03 PM
- - Nirgal   As long as there is no HiRISE DEM yet ... here is ...   Feb 6 2010, 04:22 PM
- - Tman   Just at that twin crater we might get a better vie...   Feb 6 2010, 04:40 PM
- - ngunn   I've been pondering these features, the farthe...   Feb 6 2010, 07:10 PM
- - Phil Stooke   Here's a crater in about the right place. Phi...   Feb 6 2010, 08:02 PM
- - ngunn   That looks highly plausible Phil. How far away is ...   Feb 6 2010, 08:10 PM
- - Phil Stooke   It is about where we start to turn to the east aft...   Feb 6 2010, 08:18 PM
|- - ngunn   Referring to the crater that appears on the horizo...   Feb 8 2010, 10:59 PM
|- - fredk   QUOTE (Phil Stooke @ Feb 6 2010, 09:18 PM...   Feb 8 2010, 11:45 PM
- - nprev   Stu's latest pic (which is a wow!) made me...   Feb 7 2010, 05:36 AM
- - Shaka   The soft, sulfate sandstone surrounding us at the ...   Feb 7 2010, 08:42 PM
- - nprev   Oh, great. Now I gotta come up with a sentence fea...   Feb 7 2010, 08:53 PM
- - djellison   Quite.   Feb 7 2010, 10:51 PM
|- - NW71   please...   Feb 7 2010, 11:05 PM
- - nprev   Damned if I didn't misspell "quintessenti...   Feb 8 2010, 01:05 AM
- - Astro0   Please be kwik!   Feb 8 2010, 01:17 AM
- - ngunn   Now we are sicks? http://images.google.com/imgres?...   Feb 8 2010, 10:23 AM
- - Phil Stooke   "Gonna get the letter Q kicked out of the Eng...   Feb 8 2010, 12:01 PM
- - fredk   Ngunn, using the proposed route we've seen fro...   Feb 8 2010, 11:25 PM
- - Phil Stooke   Right, I must have missed that! Very good. T...   Feb 9 2010, 04:02 AM
- - ngunn   What's that on the right? http://qt.explorator...   Feb 12 2010, 02:52 PM
- - nprev   Could you be more specific? Nothing jumps out at m...   Feb 12 2010, 03:42 PM
|- - centsworth_II   QUOTE (nprev @ Feb 12 2010, 10:42 AM) Cou...   Feb 12 2010, 03:54 PM
|- - vikingmars   QUOTE (nprev @ Feb 12 2010, 04:42 PM) Cou...   Feb 12 2010, 04:05 PM
- - ngunn   There appears to be a hill on the horizon extendin...   Feb 12 2010, 03:58 PM
- - Phil Stooke   Comparing this with the circular pan from the othe...   Feb 12 2010, 04:33 PM
- - fredk   Here's my attempt at pulling Bopolu out of the...   Feb 12 2010, 09:04 PM
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