A tribute to Phoenix' SSI |
A tribute to Phoenix' SSI |
May 30 2008, 10:58 PM
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#1
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Senior Member Group: Members Posts: 1078 Joined: 19-February 05 From: Close to Meudon Observatory in France Member No.: 172 |
YES : 5 wheels to the SSI and its wonderful team (Chris Shinohara, Mark Lemmon...) !
SSI derives, with new capabilities, from the Mars Pathfinder's successfull IMP camera. Remember : the IMP was a great instrument. It provided nice 360° panoramas of the Martian surface, radiometric and atmospheric informations and brought back fantastic surface images showing the Sojourner microrover and science data of the Martian surface. To celebrate SSI's success, let's lok back to IMP's "Insurance Pan" taken the 2nd Sol after landing in July 1997. This "Insurance Panorama" was taken just before the IMP was raised to its two-meter-high mast. This unique perspective captures (from left to right) in the close foreground : the hi-gain antenna, a color chart, low-gain antenna mast, solar panels, and the two ramps leading down to the surface, with the Sojourner microrover (at right) close to "Barnacle Bill" rock, and ready to roll to "Yogi" (the rounded boulder at far right)... |
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May 31 2008, 08:48 AM
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#2
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Senior Member Group: Members Posts: 1619 Joined: 12-February 06 From: Bergerac - FR Member No.: 678 |
Hi Olivier,
It's a great picture, from a great lander for a great landscape . I am wondering why do you have apply a so hard anti-noise filter to the image, it look like a water painting . -------------------- |
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May 31 2008, 09:04 AM
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#3
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Senior Member Group: Members Posts: 1078 Joined: 19-February 05 From: Close to Meudon Observatory in France Member No.: 172 |
Hi Olivier, It's a great picture, from a great lander for a great landscape . I am wondering why do you have apply a so hard anti-noise filter to the image, it look like a water painting . Dear Ant103 Thanks ! Because the original data was so downgraded and compressed (see herewith the comparison of a "before/after"), that I had sometimes to reconstruct missing data, creating synth blue, green or even red filters and sometimes the images were noisy also due to transmission defaults. Also, please, keep in mind that the original images were TINY : 256 x 248 pixels only ! Enjoy the original pan (if I may say...) : |
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May 31 2008, 01:30 PM
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#4
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
Great work! SSI was originally built as a virtual clone of IMP. However, they later replaced the CCDs with the current ones, giving much better resolution (Pathfinder, with no orbiter support and totally dependent on DTE communication, couldn't have taken advantage of it - as you pointed out, even these little images are horribly compressed).
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May 31 2008, 05:49 PM
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#5
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Junior Member Group: Members Posts: 36 Joined: 28-May 08 Member No.: 4152 |
To celebrate SSI's success, let's lok back to IMP's "Insurance Pan" taken the 2nd Sol after landing in July 1997. This "Insurance Panorama" was taken just before the IMP was raised to its two-meter-high mast. Feels very 'hunkered-down' as a result - and really accentuates quite how ridiculously rocky and lumpy that landscape was. Great work! SSI was originally built as a virtual clone of IMP. However, they later replaced the CCDs with the current ones, giving much better resolution Does that go some way to explaining why the SSI pictured on the Phoenix website is so scratched and battered around the lens slots? I'd just assumed that it was some rigourously tested flight spare, and the camera that actually flew on Phoenix would be much better - but if it's the actual camera, and the result of major electronic surgery on an existing flight spare, it's more understandable... Also, is it just me or are there screws missing? Extreme mass savings! Still seems to work just fine, obviously... |
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May 31 2008, 05:56 PM
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#6
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Member Group: Members Posts: 345 Joined: 2-May 05 Member No.: 372 |
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May 31 2008, 06:47 PM
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#7
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Senior Member Group: Members Posts: 2173 Joined: 28-December 04 From: Florida, USA Member No.: 132 |
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May 31 2008, 08:09 PM
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#8
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Founder Group: Chairman Posts: 14431 Joined: 8-February 04 Member No.: 1 |
That SSI isn't the Phoenix one. The phoenix one is easy to spot - it has a lump on top to accomodate two spare MER CCD's. That's more likely the spare for MPL etc.
Doug |
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May 31 2008, 09:27 PM
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#9
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Senior Member Group: Members Posts: 2917 Joined: 14-February 06 From: Very close to the Pyrénées Mountains (France) Member No.: 682 |
Merci Olivier!
This is incredibely good rendering. I feel good to be there again -------------------- |
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Jun 1 2008, 12:25 AM
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#10
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Newbie Group: Members Posts: 17 Joined: 28-May 08 Member No.: 4149 |
vikingmars, that is amazing! Cudos to you. Well done!
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