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Virtual Viking, Images and animations of the Viking landing sites
Phil Stooke
post Jun 16 2009, 06:37 PM
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A good panorama for Viking 2 is hard to find. I have gone through the online CR-ROMs at PDS and extracted everything useful, and combined it here in one panoramic image.

For each camera I took morning and afternoon pans, and for camera 1 also a noon pan. Then, for each camera, I made a composite of the multiple views, with flaws or gaps in one fixed from one of the others. The tricky part after that was to combine Camera 1 and Camera 2. My intention is to mimimize obstructions by spacecraft components and maximize the visible surface, plus to combine the two views of the foreground into a full view of the sampling area. This cannot be done without introducing distortion in this view. Later I will rubbersheet the image to fit proper ground control for a photomap of the sampling field.

Phil

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nprev
post Jun 16 2009, 07:41 PM
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Everytime I look at the Viking sites I still marvel at how lucky we were. Beautiful work as always, Phil.

Quick question: How did you account for V2's site slope in this view? IIRC the lander had something like an 8-deg tilt, so would have expected a very shallow parabola across the top of the FOV. Was this sort of "washed out" by the distant topography in your rendering?

Just curious, and forgive me if it's a silly question; my abject lack of image processing skills matches my lack of understanding of them!


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Phil Stooke
post Jun 16 2009, 08:22 PM
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The tilt was already corrected for in the assembled panoramas I worked from. They were made at JPL and saved in a rather chaotic collection of archived files in the PDS. The hard part was finding suitable files to use.

Right now I'm trying to project the pan onto a HiRISE image to make a photomap.

Phil


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Stu
post Jun 16 2009, 09:49 PM
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Gorgeous pic Phil, great work as usual. I could - and probably will! - stare at that for yonks! smile.gif


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Phil Stooke
post Jun 17 2009, 03:26 PM
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Here's the Viking 2 pan wrapped into a circle with exaggerated horizon relief - greatly exaggerated, or you don't see anything. I did this for Viking 1 a while ago.

Phil

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mhoward
post Jun 17 2009, 04:10 PM
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Awesome job on both.
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tedstryk
post Jun 26 2009, 03:08 PM
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Amazing!


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Phil Stooke
post Jun 27 2009, 12:40 AM
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Thanks! I am doing some improvements to the panorama to get more uniform lighting - I just used the contemporary mosaics, now I'm making my own camera 2 pan with better morning lighting. Meanwhile, also working on step by step arm activity illustrations similar to some posted earlier. I must have Viking 2 finished by the end of July to stay on track.

Phil


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SpaceListener
post Jun 27 2009, 05:08 AM
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Unique scenary. Surface is very rocky. That leads me to think on how lucky was Viking with landing!
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vikingmars
post Jun 29 2009, 09:02 PM
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wheel.gif wheel.gif wheel.gif wheel.gif wheel.gif As a tribute to Phil's gorgeous work, here is a VL2 controlled mosaic made in 2001 for a Mars educational exhibit built for the French section of the Mars Society... Enjoy ! smile.gif
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vikingmars
post Jun 29 2009, 09:16 PM
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wheel.gif wheel.gif wheel.gif wheel.gif wheel.gif ...and now for VL1 (especially made to show to the public the technical aspects of the robotic arm/soil sampler). Enjoy also ! smile.gif
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nprev
post Jun 30 2009, 02:25 AM
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Those were AWESOME, VM, thanks!!!

Never, ever saw that V1 pan before; the arm was a beast indeed!


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SpaceListener
post Jun 30 2009, 02:58 AM
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Spectaculars pictures. The VL2 landing is terrific. How lucky was VL2. Thanks Vikingmars.
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climber
post Jun 30 2009, 09:26 AM
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Merci Olivier... the quality of the panos is absolutely stuning


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Phil Stooke
post Jul 1 2009, 03:46 AM
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Speaking of Viking... next week I'm at Brown University, going through the papers of Tim Mutch in their archives. I'm looking for the minutes of the Viking Landing Site Working Group and related materials. Should be fun. smile.gif

Phil


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