IPB

Welcome Guest ( Log In | Register )

 
Reply to this topicStart new topic
A tribute to Phoenix' SSI
vikingmars
post May 30 2008, 10:58 PM
Post #1


Member
***

Group: Members
Posts: 561
Joined: 19-February 05
From: France, close to Paris & Meudon Observatory
Member No.: 172



wheel.gif wheel.gif wheel.gif wheel.gif wheel.gif 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)... smile.gif
Attached Image

Go to the top of the page
 
+Quote Post
Ant103
post May 31 2008, 08:48 AM
Post #2


Senior Member
****

Group: Members
Posts: 1312
Joined: 12-February 06
From: Dijon - FR
Member No.: 678



Hi Olivier,

It's a great picture, from a great lander for a great landscape smile.gif.

I am wondering why do you have apply a so hard anti-noise filter to the image, it look like a water painting unsure.gif .


--------------------
Go to the top of the page
 
+Quote Post
vikingmars
post May 31 2008, 09:04 AM
Post #3


Member
***

Group: Members
Posts: 561
Joined: 19-February 05
From: France, close to Paris & Meudon Observatory
Member No.: 172



QUOTE (Ant103 @ May 31 2008, 10:48 AM) *
Hi Olivier, It's a great picture, from a great lander for a great landscape smile.gif. I am wondering why do you have apply a so hard anti-noise filter to the image, it look like a water painting unsure.gif .


smile.gif 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...) : rolleyes.gif
Attached Image
Go to the top of the page
 
+Quote Post
tedstryk
post May 31 2008, 01:30 PM
Post #4


Interplanetary Dumpster Diver
****

Group: Moderator
Posts: 4159
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).


--------------------
Go to the top of the page
 
+Quote Post
Cargo Cult
post May 31 2008, 05:49 PM
Post #5


Junior Member
**

Group: Members
Posts: 32
Joined: 28-May 08
Member No.: 4152



QUOTE (vikingmars @ May 30 2008, 11:58 PM) *
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.

QUOTE (tedstryk @ May 31 2008, 02:30 PM) *
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...
Go to the top of the page
 
+Quote Post
um3k
post May 31 2008, 05:56 PM
Post #6


Member
***

Group: Members
Posts: 331
Joined: 2-May 05
Member No.: 372



QUOTE (Cargo Cult @ May 31 2008, 12:49 PM) *

Smiley face! smile.gif
Go to the top of the page
 
+Quote Post
centsworth_II
post May 31 2008, 06:47 PM
Post #7


Senior Member
****

Group: Members
Posts: 2024
Joined: 28-December 04
Member No.: 132



Nice eyelashes!
Attached Image
Go to the top of the page
 
+Quote Post
djellison
post May 31 2008, 08:09 PM
Post #8


Administrator
****

Group: Chairman
Posts: 13600
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
Go to the top of the page
 
+Quote Post
climber
post May 31 2008, 09:27 PM
Post #9


Senior Member
****

Group: Members
Posts: 2591
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 smile.gif


--------------------
Go to the top of the page
 
+Quote Post
Josh Cryer
post Jun 1 2008, 12:25 AM
Post #10


Newbie
*

Group: Members
Posts: 17
Joined: 28-May 08
Member No.: 4149



vikingmars, that is amazing! Cudos to you. Well done! biggrin.gif
Go to the top of the page
 
+Quote Post

Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 20th April 2014 - 06:32 PM
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and copyright.

OPINIONS AND MODERATION
Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators.
SUPPORT THE FORUM
Unmannedspaceflight.com is a project of the Planetary Society and is funded by donations from visitors and members. Help keep this forum up and running by contributing here.